NPORT-EX 1 NVG.htm
NVG
Nuveen AMT-Free Municipal Credit Income Fund
Portfolio of Investments    July 31, 2019
(Unaudited)
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    LONG-TERM INVESTMENTS – 156.6% (100.0% of Total Investments)        
    MUNICIPAL BONDS – 156.6% (100.0% of Total Investments)        
    Alabama – 2.0% (1.3% of Total Investments)        
$3,645   Alabama Private Colleges and University Facilities Authority, Limited Obligation Bonds, University of Mobile Project, Series 2015A, 6.000%, 9/01/45, 144A   9/25 at 100.00 N/R $3,908,862
22,655   Lower Alabama Gas District, Alabama, Gas Project Revenue Bonds, Series 2016A, 5.000%, 9/01/46   No Opt. Call A3 30,853,391
8,100   Mobile Spring Hill College Educational Building Authority, Alabama, Revenue Bonds, Spring Hill College Project, Series 2015, 5.875%, 4/15/45   4/25 at 100.00 N/R 8,601,795
    Opelika Utilities Board, Alabama, Utility Revenue Bonds, Series 2011B:        
1,250   4.000%, 6/01/29  –  AGM Insured   6/21 at 100.00 Aa3 1,308,125
1,000   4.250%, 6/01/31  –  AGM Insured   6/21 at 100.00 Aa3 1,046,400
    The Improvement District of the City of Mobile - McGowin Park Project, Sales Tax Revenue Bonds, Alabama, Series 2016A:        
1,000   5.250%, 8/01/30   8/26 at 100.00 N/R 1,045,200
1,300   5.500%, 8/01/35   8/26 at 100.00 N/R 1,357,148
5,970   Tuscaloosa County Industrial Development Authority, Alabama, Gulf Opportunity Zone Bonds, Hunt Refining Project, Refunding Series 2019A, 5.250%, 5/01/44, 144A   5/29 at 100.00 N/R 6,633,327
12,000   UAB Medicine Finance Authority, Alabama, Revenue Bonds, Series 2019B, 4.000%, 9/01/44   9/29 at 100.00 AA- 13,148,640
56,920   Total Alabama       67,902,888
    Alaska – 0.6% (0.4% of Total Investments)        
    Northern Tobacco Securitization Corporation, Alaska, Tobacco Settlement Asset-Backed Bonds, Series 2006A:        
7,010   5.000%, 6/01/32   8/19 at 100.00 B3 7,018,973
12,580   5.000%, 6/01/46   8/19 at 100.00 B3 12,595,725
19,590   Total Alaska       19,614,698
    Arizona – 2.9% (1.8% of Total Investments)        
4,230   Apache County Industrial Development Authority, Arizona, Pollution Control Revenue Bonds, Tucson Electric Power Company, Series 20102A, 4.500%, 3/01/30   3/22 at 100.00 A- 4,458,547
1,475   Arizona Industrial Development Authority, Arizona, Education Facility Revenue Bonds, Basis Schools, Inc Projects, Series 2017D, 5.000%, 7/01/47, 144A   7/27 at 100.00 BB 1,580,374
3,260   Arizona Industrial Development Authority, Education Facility Revenue Bonds, Caurus Academy Project, Series 2018A, 6.375%, 6/01/39, 144A   6/28 at 100.00 N/R 3,430,335
10,000   Arizona Sports and Tourism Authority, Tax Revenue Bonds, Multipurpose Stadium Facility Project, Refunding Senior Series 2012A, 5.000%, 7/01/31   7/22 at 100.00 A 10,729,700
3,000   Arizona State, Certificates of Participation, Department of Administration Series 2010B, 5.000%, 10/01/29  –  AGC Insured   4/20 at 100.00 Aa3 3,072,060
1
NVG Nuveen AMT-Free Municipal Credit Income Fund (continued)
  Portfolio of Investments July 31, 2019
  (Unaudited)
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Arizona (continued)        
    Arizona State, Certificates of Participation, Series 2010A:        
$1,200   5.250%, 10/01/28  –  AGM Insured   10/19 at 100.00 Aa3 $1,208,148
1,500   5.000%, 10/01/29  –  AGM Insured   10/19 at 100.00 Aa3 1,509,570
7,070   Arizona State, State Lottery Revenue Bonds, Series 2010A, 5.000%, 7/01/29  –  AGC Insured   1/20 at 100.00 Aa3 7,182,554
3,325   Cahava Springs Revitalization District, Cave Creek, Arizona, Special Assessment Bonds, Series 2017A, 7.000%, 7/01/41, 144A   7/27 at 100.00 N/R 3,463,852
7,780   Phoenix Civic Improvement Corporation, Arizona, Airport Revenue Bonds, Junior Lien Series 2010A, 5.000%, 7/01/40 (Pre-refunded 7/01/20)   7/20 at 100.00 A+ (4) 8,054,323
    Phoenix Civic Improvement Corporation, Arizona, Revenue Bonds, Civic Plaza Expansion Project, Series 2005B:        
6,000   5.500%, 7/01/37  –  FGIC Insured   No Opt. Call AA 8,738,400
8,755   5.500%, 7/01/39  –  FGIC Insured   No Opt. Call AA 12,790,705
    Phoenix Industrial Development Authority, Arizona, Education Facility Revenue Bonds, Basis Schools, Inc Projects, Series 2016A:        
620   5.000%, 7/01/35, 144A   7/25 at 100.00 BB 665,508
1,025   5.000%, 7/01/46, 144A   7/25 at 100.00 BB 1,082,338
2,065   Phoenix Industrial Development Authority, Arizona, Multifamily Housing Revenue Bonds, Deer Valley Veterans Assisted Living Project, Series 2016A, 5.125%, 7/01/36   7/24 at 101.00 N/R 2,084,184
    Pima County Industrial Development Authority, Arizona, Education Facility Revenue and Refunding Bonds, Edkey Charter Schools Project, Series 2013:        
490   6.000%, 7/01/33   7/20 at 102.00 BB- 495,258
610   6.000%, 7/01/43   7/20 at 102.00 BB- 610,976
350   6.000%, 7/01/48   7/20 at 102.00 BB- 350,094
1,425   Pima County Industrial Development Authority, Arizona, Education Facility Revenue Bonds, Edkey Charter Schools Project, Series 2014A, 7.375%, 7/01/49   7/20 at 102.00 BB- 1,464,145
    Pima County Industrial Development Authority, Arizona, Education Facility Revenue Bonds, Edkey Charter Schools Project, Series 2016:        
1,130   5.250%, 7/01/36   7/26 at 100.00 BB- 1,071,342
1,850   5.375%, 7/01/46   7/26 at 100.00 BB- 1,702,740
2,135   5.500%, 7/01/51   7/26 at 100.00 BB- 1,977,715
885   Pima County Industrial Development Authority, Arizona, Education Facility Revenue Bonds, San Tan Montessori School Project, Series 2016, 6.500%, 2/01/48, 144A   2/24 at 100.00 N/R 920,904
3,050   Pima County Industrial Development Authority, Arizona, Education Facility Revenue Bonds, San Tan Montessori School Project, Series 2017, 6.750%, 2/01/50, 144A   2/28 at 100.00 N/R 3,301,747
105   Pima County Industrial Development Authority, Arizona, Education Revenue Bonds, Noah Webster Schools ? Pima Project, Series 2014A, 7.250%, 7/01/39   7/20 at 102.00 BB- 107,961
1,000   Pima County Industrial Development Authority, Arizona, Revenue Bonds, Tucson Electric Power Company, Series 2010A, 5.250%, 10/01/40   10/20 at 100.00 A- 1,037,060
    Salt Verde Financial Corporation, Arizona, Senior Gas Revenue Bonds, Citigroup Energy Inc Prepay Contract Obligations, Series 2007:        
6,820   5.000%, 12/01/32   No Opt. Call BBB+ 8,765,882
2,745   5.000%, 12/01/37   No Opt. Call BBB+ 3,630,510
2
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Arizona (continued)        
$800   The Industrial Development Authority of the County of Maricopa, Arizona, Education Revenue Bonds, Reid Traditional School Projects, Series 2016, 5.000%, 7/01/47   7/26 at 100.00 Baa3 $876,192
2,000   Yavapai County Industrial Development Authority, Arizona, Hospital Revenue Bonds, Yavapai Regional Medical Center, Series 2013A, 5.250%, 8/01/33   8/23 at 100.00 A2 2,268,040
86,700   Total Arizona       98,631,164
    Arkansas – 0.3% (0.2% of Total Investments)        
    Arkansas Development Finance Authority, Tobacco Settlement Revenue Bonds, Arkansas Cancer Research Center Project, Series 2006:        
2,500   0.000%, 7/01/36  –  AMBAC Insured   No Opt. Call Aa2 1,449,075
20,460   0.000%, 7/01/46  –  AMBAC Insured   No Opt. Call Aa2 7,644,674
22,960   Total Arkansas       9,093,749
    California – 15.6% (10.0% of Total Investments)        
    Alameda Corridor Transportation Authority, California, Revenue Bonds, Refunding Subordinate Lien Series 2004A:        
45   0.000%, 10/01/20  –  AMBAC Insured   No Opt. Call Baa2 44,020
2,120   0.000%, 10/01/20  –  AMBAC Insured (ETM)   No Opt. Call Aaa (4) 2,093,097
6,135   Alhambra Unified School District, Los Angeles County, California, General Obligation Bonds, Capital Appreciation Series 2009B, 0.000%, 8/01/30  –  AGC Insured   No Opt. Call AA 4,821,251
12,550   Anaheim Public Financing Authority, California, Lease Revenue Bonds, Public Improvement Project, Series 1997C, 0.000%, 9/01/35  –  AGM Insured   No Opt. Call A2 7,996,986
4,100   Antelope Valley Healthcare District, California, Revenue Bonds, Series 2016A, 5.000%, 3/01/41   3/26 at 100.00 Ba3 4,332,880
5,000   Bay Area Toll Authority, California, Revenue Bonds, San Francisco Bay Area Toll Bridge, Series 2013S-4, 5.000%, 4/01/38 (Pre-refunded 4/01/23)   4/23 at 100.00 A1 (4) 5,739,100
    California County Tobacco Securitization Agency, Tobacco Settlement Asset-Backed Bonds, Los Angeles County Securitization Corporation, Series 2006A:        
3,275   5.450%, 6/01/28   8/19 at 100.00 B2 3,333,033
2,975   5.650%, 6/01/41   8/19 at 100.00 B2 2,999,038
22,965   California Educational Facilities Authority, Revenue Bonds, Stanford University Series 2016U-7, 5.000%, 6/01/46 (UB) (5)   No Opt. Call AAA 33,695,856
15,850   California Educational Facilities Authority, Revenue Bonds, Stanford University Series 2019V-1, 5.000%, 5/01/49   No Opt. Call AAA 23,595,103
10,000   California Health Facilities Financing Authority, Revenue Bonds, Lucile Salter Packard Children's Hospital, Series 2012A, 5.000%, 8/15/51   8/22 at 100.00 A+ 10,850,500
1,600   California Health Facilities Financing Authority, Revenue Bonds, Saint Joseph Health System, Series 2013A, 5.000%, 7/01/37   7/23 at 100.00 AA- 1,808,912
6,665   California Health Facilities Financing Authority, Revenue Bonds, Stanford Hospitals and Clinics, Series 2015A, 5.000%, 8/15/54 (UB) (5)   8/25 at 100.00 AA- 7,569,441
    California Health Facilities Financing Authority, Revenue Bonds, Stanford Hospitals and Clinics, Tender Option Bond Trust 2016-XG0049:        
1,555   8.056%, 8/15/51, 144A (IF) (5)   8/22 at 100.00 AA- 1,836,517
1,650   8.062%, 8/15/51, 144A (IF) (5)   8/22 at 100.00 AA- 1,948,980
4,075   8.062%, 8/15/51, 144A (IF) (5)   8/22 at 100.00 AA- 4,813,390
3
NVG Nuveen AMT-Free Municipal Credit Income Fund (continued)
  Portfolio of Investments July 31, 2019
  (Unaudited)
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    California (continued)        
$5,000   California Health Facilities Financing Authority, Revenue Bonds, Sutter Health, Series 2013A, 5.000%, 8/15/52   8/23 at 100.00 A+ $5,531,450
    California Municipal Finance Authority, Charter School Revenue Bonds, Palmdale Aerospace Academy Project, Series 2016A:        
3,065   5.000%, 7/01/31, 144A   7/26 at 100.00 BB 3,445,121
1,000   5.000%, 7/01/36, 144A   7/26 at 100.00 BB 1,106,900
555   5.000%, 7/01/41, 144A   7/26 at 100.00 BB 607,858
195   5.000%, 7/01/46, 144A   7/26 at 100.00 BB 212,694
    California Municipal Finance Authority, Education Revenue Bonds, American Heritage Foundation Project, Series 2016A:        
260   5.000%, 6/01/36   6/26 at 100.00 BBB- 296,015
435   5.000%, 6/01/46   6/26 at 100.00 BBB- 488,070
2,335   California Municipal Finance Authority, Revenue Bonds, Eisenhower Medical Center, Series 2010A, 5.750%, 7/01/40 (Pre-refunded 7/01/20)   7/20 at 100.00 Baa2 (4) 2,434,961
5,425   California Pollution Control Financing Authority, Water Furnishing Revenue Bonds, San Diego County Water Authoriity Desalination Project Pipeline, Refunding Series 2019, 5.000%, 11/21/45, 144A   1/29 at 100.00 Baa3 6,451,030
2,050   California Public Finance Authority, Revenue Bonds, Henry Mayo Newhall Hospital, Series 2017, 5.000%, 10/15/47   10/26 at 100.00 BBB- 2,297,189
735   California School Finance Authority, Charter School Revenue Bonds, Downtown College Prep - Obligated Group, Series 2016, 5.000%, 6/01/46, 144A   6/26 at 100.00 N/R 784,399
715   California School Finance Authority, Charter School Revenue Bonds, Rocketship Education ? Obligated Group, Series 2016A, 5.000%, 6/01/36, 144A   6/25 at 100.00 N/R 760,610
570   California School Finance Authority, Charter School Revenue Bonds, Rocketship Education ? Obligated Group, Series 2017A, 5.125%, 6/01/47, 144A   6/26 at 100.00 N/R 609,723
80   California State, General Obligation Bonds, Series 2002, 5.000%, 10/01/32  –  NPFG Insured   9/19 at 100.00 AA- 80,251
5   California State, General Obligation Bonds, Series 2004, 5.000%, 4/01/31  –  AMBAC Insured   9/19 at 100.00 AA- 5,016
    California State, General Obligation Bonds, Various Purpose Series 2010:        
3,500   5.250%, 3/01/30   3/20 at 100.00 AA- 3,584,420
10,000   5.500%, 11/01/35   11/20 at 100.00 AA- 10,544,400
12,710   California Statewide Communities Development Authority, California, Revenue Bonds, Loma Linda University Medical Center, Series 2014A, 5.500%, 12/01/54   12/24 at 100.00 BB- 14,143,307
65,505   California Statewide Communities Development Authority, California, Revenue Bonds, Loma Linda University Medical Center, Series 2016A, 5.250%, 12/01/56, 144A   6/26 at 100.00 BB- 73,459,927
10,130   California Statewide Communities Development Authority, California, Revenue Bonds, Loma Linda University Medical Center, Series 2018A, 5.500%, 12/01/58, 144A   6/28 at 100.00 BB- 11,789,092
4,000   California Statewide Communities Development Authority, Revenue Bonds, Huntington Memorial Hospital, Refunding Series 2014B, 4.000%, 7/01/39   7/24 at 100.00 A- 4,193,160
7,000   California Statewide Communities Development Authority, Revenue Bonds, Sutter Health, Series 2011A, 6.000%, 8/15/42 (Pre-refunded 8/15/20)   8/20 at 100.00 A+ (4) 7,365,050
4
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    California (continued)        
    California Statewide Community Development Authority, Revenue Bonds, Daughters of Charity Health System, Series 2005A:        
$1,535   5.750%, 7/01/30   9/19 at 100.00 CC $1,528,016
4,430   5.750%, 7/01/35   9/19 at 100.00 CC 4,401,205
5,000   Clovis Unified School District, Fresno County, California, General Obligation Bonds, Series 2001A, 0.000%, 8/01/25  –  FGIC Insured (ETM)   No Opt. Call Baa2 (4) 4,637,200
3,400   Coachella Valley Unified School District, Riverside County, California, General Obligation Bonds, Election 2005 Series 2010C, 0.000%, 8/01/33  –  AGM Insured   No Opt. Call A2 2,367,454
14,375   Corona-Norco Unified School District, Riverside County, California, General Obligation Bonds, Capital Appreciation, Election 2006 Refunding Series 2009C, 0.000%, 8/01/39  –  AGM Insured   No Opt. Call AA 7,394,500
    El Rancho Unified School District, Los Angeles County, California, General Obligation Bonds, Election 2010 Series 2011A:        
2,615   0.000%, 8/01/31  –  AGM Insured (6)   8/28 at 100.00 A1 2,895,354
3,600   0.000%, 8/01/34  –  AGM Insured (6)   8/28 at 100.00 A1 3,953,160
    Foothill/Eastern Transportation Corridor Agency, California, Toll Road Revenue Bonds, Refunding Senior Lien Series 2015A:        
3,960   0.000%, 1/15/34  –  AGM Insured   No Opt. Call BBB- 2,623,856
5,000   0.000%, 1/15/35  –  AGM Insured   No Opt. Call BBB- 3,198,850
    Foothill/Eastern Transportation Corridor Agency, California, Toll Road Revenue Bonds, Refunding Series 2013A:        
910   0.000%, 1/15/42 (6)   1/31 at 100.00 BBB- 931,294
3,610   5.750%, 1/15/46   1/24 at 100.00 BBB- 4,182,474
6,610   6.000%, 1/15/49   1/24 at 100.00 BBB- 7,759,611
4,445   Foothill/Eastern Transportation Corridor Agency, California, Toll Road Revenue Bonds, Refunding Term Rate Sub-Series 2013B-1, 3.500%, 1/15/53   7/29 at 100.00 BBB- 4,511,008
2,425   Fullerton Public Financing Authority, California, Tax Allocation Revenue Bonds, Series 2005, 5.000%, 9/01/27  –  AMBAC Insured   3/20 at 100.00 A 2,432,712
    Golden State Tobacco Securitization Corporation, California, Tobacco Settlement Asset-Backed Bonds, Series 2018A-1:        
9,795   5.000%, 6/01/47   6/22 at 100.00 N/R 9,898,043
6,240   5.250%, 6/01/47   6/22 at 100.00 N/R 6,363,053
10,250   Golden State Tobacco Securitization Corporation, California, Tobacco Settlement Asset-Backed Bonds, Series 2018A-2, 5.000%, 6/01/47   6/22 at 100.00 N/R 10,357,830
    Kern Community College District, California, General Obligation Bonds, Safety, Repair & Improvement, Election 2002 Series 2006:        
5,600   0.000%, 11/01/24  –  AGM Insured   No Opt. Call AA 5,170,256
5,795   0.000%, 11/01/25  –  AGM Insured   No Opt. Call AA 5,225,815
1,195   Lincoln Public Financing Authority, Placer County, California, Twelve Bridges Limited Obligation Revenue Bonds, Refunding Series 2011A, 4.375%, 9/02/25  –  AGM Insured   9/21 at 100.00 AA 1,272,866
7,575   Mount San Antonio Community College District, Los Angeles County, California, General Obligation Bonds, Election of 2008, Series 2013A, 0.000%, 8/01/43 (6)   8/35 at 100.00 AA 7,296,240
3,310   M-S-R Energy Authority, California, Gas Revenue Bonds, Citigroup Prepay Contracts, Series 2009B, 6.500%, 11/01/39   No Opt. Call BBB+ 5,039,343
5
NVG Nuveen AMT-Free Municipal Credit Income Fund (continued)
  Portfolio of Investments July 31, 2019
  (Unaudited)
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    California (continued)        
    Oceanside Unified School District, San Diego County, California, General Obligation Bonds, Capital Appreciation, 2008 Election Series 2009A:        
$605   0.000%, 8/01/26  –  AGC Insured (ETM)   No Opt. Call Aa3 (4) $545,311
5,300   0.000%, 8/01/26  –  AGC Insured   No Opt. Call Aa3 4,703,644
2,220   0.000%, 8/01/28  –  AGC Insured   No Opt. Call Aa3 1,868,041
1,485   Ontario Redevelopment Financing Authority, San Bernardino County, California, Revenue Bonds, Redevelopment Project 1, Series 1993, 5.850%, 8/01/22  –  NPFG Insured (ETM)   10/19 at 100.00 N/R (4) 1,589,797
3,905   Orange County, California, Special Tax Bonds, Community Facilities District 2015-1 Esencia Village, Series 2015A, 4.250%, 8/15/38   8/25 at 100.00 N/R 4,165,971
5,000   Palomar Pomerado Health Care District, California, Certificates of Participation, Series 2010, 6.000%, 11/01/30 (Pre-refunded 11/01/20)   11/20 at 100.00 Ba1 (4) 5,307,050
3,700   Palomar Pomerado Health, California, General Obligation Bonds, Capital Appreciation, Election of 2004, Series 2007A, 0.000%, 8/01/25  –  NPFG Insured   No Opt. Call BB+ 3,277,682
7,875   Palomar Pomerado Health, California, General Obligation Bonds, Series 2009A, 7.000%, 8/01/38  –  AGC Insured (6)   8/29 at 100.00 BB+ 10,814,029
9,145   Pittsburg Redevelopment Agency, California, Tax Allocation Bonds, Los Medanos Community Development Project, Series 1999, 0.000%, 8/01/30  –  AMBAC Insured   No Opt. Call A 6,926,057
4,150   Placentia-Yorba Linda Unified School District, Orange County, California, Certificates of Participation, Refunding Series 2011, 6.250%, 10/01/28  –  AGM Insured   10/21 at 100.00 A2 4,614,178
670   Riverside County Transportation Commission, California, Toll Revenue Senior Lien Bonds, Series 2013A, 5.750%, 6/01/48   6/23 at 100.00 BBB 741,161
    San Clemente, California, Special Tax Revenue Bonds, Community Facilities District 2006-1 Marblehead Coastal, Series 2015:        
490   5.000%, 9/01/40   9/25 at 100.00 N/R 549,295
915   5.000%, 9/01/46   9/25 at 100.00 N/R 1,020,920
4,000   San Francisco Airports Commission, California, Revenue Bonds, San Francisco International Airport, Governmental Purpose, Second Series 2013B, 5.000%, 5/01/43   5/23 at 100.00 A+ 4,471,600
66,685   San Joaquin Hills Transportation Corridor Agency, Orange County, California, Senior Lien Toll Road Revenue Bonds, Series 1993, 0.000%, 1/01/21 (ETM)   No Opt. Call AA+ (4) 65,668,054
    San Joaquin Hills Transportation Corridor Agency, Orange County, California, Toll Road Revenue Bonds, Refunding Senior Lien Series 2014A:        
2,680   5.000%, 1/15/44   1/25 at 100.00 BBB 3,031,160
8,275   5.000%, 1/15/50   1/25 at 100.00 BBB 9,285,874
7,210   San Joaquin Hills Transportation Corridor Agency, Orange County, California, Toll Road Revenue Bonds, Refunding Series 1997A, 0.000%, 1/15/23  –  NPFG Insured   No Opt. Call Baa2 6,740,196
3,250   San Mateo County Community College District, California, General Obligation Bonds, Series 2006C, 0.000%, 9/01/30  –  NPFG Insured   No Opt. Call AAA 2,606,760
4,325   San Ysidro School District, San Diego County, California, General Obligation Bonds, 1997 Election Series 2012G, 0.000%, 8/01/34  –  AGM Insured   No Opt. Call AA 2,763,675
5,690   San Ysidro School District, San Diego County, California, General Obligation Bonds, Refunding Series 2015, 0.000%, 8/01/42   8/25 at 41.10 A1 1,983,705
6
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    California (continued)        
    Santa Ana Financing Authority, California, Lease Revenue Bonds, Police Administration and Housing Facility, Series 1994A:        
$5,625   6.250%, 7/01/24   No Opt. Call Baa2 $6,433,706
5,625   6.250%, 7/01/24 (ETM)   No Opt. Call Baa2 (4) 6,491,306
3,500   Saugus Union School District, Los Angeles County, California, General Obligation Bonds, Series 2006, 0.000%, 8/01/23  –  FGIC Insured   No Opt. Call A+ 3,304,910
610   Temecula Public Financing Authority, California, Special Tax Bonds, Community Facilities District 16-01, Series 2017, 6.250%, 9/01/47, 144A   9/27 at 100.00 N/R 645,606
    Tobacco Securitization Authority of Northern California, Tobacco Settlement Asset-Backed Bonds, Series 2005A-1:        
860   4.750%, 6/01/23   8/19 at 100.00 BB+ 864,739
1,600   5.500%, 6/01/45   8/19 at 100.00 B- 1,607,120
    Tobacco Securitization Authority of Southern California, Tobacco Settlement Asset-Backed Bonds, San Diego County Tobacco Asset Securitization Corporation, Senior Series 2006A:        
480   4.750%, 6/01/25   8/19 at 100.00 BBB+ 482,846
2,865   5.125%, 6/01/46   8/19 at 100.00 B2 2,872,306
516,245   Total California       536,485,586
    Colorado – 10.0% (6.4% of Total Investments)        
850   Aviation Station North Metropolitan District 2, Denver County, Colorado, Limited Tax General Obligation Bonds, Refunding & Improvement Series 2019A, 5.000%, 12/01/39   9/24 at 103.00 N/R 886,686
    Base Village Metropolitan District 2, Colorado, General Obligation Bonds, Refunding Series 2016A:        
890   5.500%, 12/01/36   12/21 at 103.00 N/R 935,933
1,175   5.750%, 12/01/46   12/21 at 103.00 N/R 1,234,549
1,100   Belleview Station Metropolitan District 2, Denver City and County, Colorado, General Obligation Bonds, Limited Tax Convertible to Unlimited Tax Refunding & Improvement Series 2017, 5.000%, 12/01/36   12/21 at 103.00 N/R 1,145,309
700   Brighton Crossing Metropolitan District 4, Colorado, General Obligation Bonds, Limited Tax Convertible to Unlimited Tax, Series 2017A, 5.000%, 12/01/47   12/22 at 103.00 N/R 730,415
3,410   Canyons Metropolitan District 5, Douglas County, Colorado, Limited Tax General Obligation and Special Revenue Bonds, Refunding & Improvement Series 2017A, 6.125%, 12/01/47   12/22 at 103.00 N/R 3,527,850
1,690   Canyons Metropolitan District 6, Douglas County, Colorado, Limited Tax General Obligation and Special Revenue Bonds, Refunding & Improvement Series 2017A, 6.125%, 12/01/47   12/22 at 103.00 N/R 1,723,969
    Centerra Metropolitan District 1, Loveland, Colorado, Special Revenue Bonds, Refunding & Improvement Series 2017:        
1,140   5.000%, 12/01/37, 144A   12/22 at 103.00 N/R 1,204,444
5,465   5.000%, 12/01/47, 144A   12/22 at 103.00 N/R 5,693,164
195   Central Platte Valley Metropolitan District, Colorado, General Obligation Bonds, Refunding Series 2014, 5.000%, 12/01/43   12/23 at 100.00 BB 209,245
1,200   Clear Creek Station Metropolitan District 2, Adams County, Colorado, Limited Tax General Obligation Refunding & Improvement Series 2017A, 5.000%, 12/01/47   12/22 at 103.00 N/R 1,244,028
7
NVG Nuveen AMT-Free Municipal Credit Income Fund (continued)
  Portfolio of Investments July 31, 2019
  (Unaudited)
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Colorado (continued)        
$930   Colorado Educational and Cultural Facilities Authority, Charter School Revenue Bonds, Flagstaff Academy Project, Refunding Series 2016, 3.625%, 8/01/46   8/26 at 100.00 A+ $949,325
1,165   Colorado Educational and Cultural Facilities Authority, Charter School Revenue Bonds, The Classical Academy Project, Refunding Series 2015A, 5.000%, 12/01/38   12/24 at 100.00 A+ 1,304,171
3,675   Colorado Educational and Cultural Facilities Authority, Charter School Revenue Bonds, Vanguard School Project, Refunding & Improvement Series 2016, 3.750%, 6/15/47   6/26 at 100.00 A+ 3,777,422
1,750   Colorado Educational and Cultural Facilities Authority, Charter School Revenue Bonds, Weld County School District 6 - Frontier Academy, Refunding & Improvement Series 2016, 3.250%, 6/01/46   6/26 at 100.00 A+ 1,751,365
    Colorado Health Facilities Authority, Colorado, Health Facilities Revenue Bonds, The Evangelical Lutheran Good Samaritan Society Project, Refunding Series 2017:        
2,460   5.000%, 6/01/42 (Pre-refunded 6/01/27)   6/27 at 100.00 BBB+ (4) 3,058,887
23,470   5.000%, 6/01/47 (Pre-refunded 6/01/27)   6/27 at 100.00 BBB+ (4) 29,183,771
3,000   Colorado Health Facilities Authority, Colorado, Revenue Bonds, Catholic Health Initiatives, Series 2011A, 5.000%, 2/01/41 (Pre-refunded 2/01/21)   2/21 at 100.00 BBB+ (4) 3,163,590
11,520   Colorado Health Facilities Authority, Colorado, Revenue Bonds, Catholic Health Initiatives, Series 2013A, 5.250%, 1/01/45 (Pre-refunded 1/01/23)   1/23 at 100.00 BBB+ (4) 13,001,587
    Colorado Health Facilities Authority, Colorado, Revenue Bonds, Covenant Retirement Communities Inc, Refunding Series 2012B:        
1,640   5.000%, 12/01/22   No Opt. Call A- 1,821,876
2,895   5.000%, 12/01/23   12/22 at 100.00 A- 3,211,974
4,200   5.000%, 12/01/24   12/22 at 100.00 A- 4,654,986
    Colorado Health Facilities Authority, Colorado, Revenue Bonds, Evangelical Lutheran Good Samaritan Society Project, Series 2013:        
765   5.500%, 6/01/33 (Pre-refunded 6/01/23)   6/23 at 100.00 BBB+ (4) 882,183
1,575   5.625%, 6/01/43 (Pre-refunded 6/01/23)   6/23 at 100.00 BBB+ (4) 1,823,582
    Colorado Health Facilities Authority, Colorado, Revenue Bonds, Evangelical Lutheran Good Samaritan Society Project, Series 2013A:        
1,410   5.000%, 6/01/32 (Pre-refunded 6/01/25)   6/25 at 100.00 BBB+ (4) 1,684,499
2,000   5.000%, 6/01/33 (Pre-refunded 6/01/25)   6/25 at 100.00 BBB+ (4) 2,389,360
5,855   5.000%, 6/01/40 (Pre-refunded 6/01/25)   6/25 at 100.00 BBB+ (4) 6,994,851
6,820   5.000%, 6/01/45 (Pre-refunded 6/01/25)   6/25 at 100.00 BBB+ (4) 8,147,718
2,035   Colorado Health Facilities Authority, Colorado, Revenue Bonds, Frasier Meadows Project, Refunding & Improvement Series 2017A, 5.250%, 5/15/47   5/27 at 100.00 BB+ 2,277,246
11,830   Colorado Health Facilities Authority, Colorado, Revenue Bonds, Sisters of Charity of Leavenworth Health Services Corporation, Series 2010A, 5.000%, 1/01/40   1/20 at 100.00 AA- 11,997,513
4,105   Colorado International Center Metropolitan District 14, Denver, Colorado, Limited Tax General Obligation Bonds, Refunding & Improvement Series 2018, 5.875%, 12/01/46   12/23 at 103.00 N/R 4,463,572
500   Copperleaf Metropolitan District 2, Arapahoe County, Colorado, General Obligation Bonds, Refunding Limited Tax Convertible to Unlimited Tax Series 2015, 5.750%, 12/01/45   12/20 at 103.00 N/R 524,220
500   Copperleaf Metropolitan District 2, Colorado, General Obligation Limited Tax Bonds, Series 2006, 5.250%, 12/01/30   12/20 at 103.00 N/R 524,365
8
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Colorado (continued)        
$1,480   Cornerstar Metropolitan District, Arapahoe County, Colorado, General Obligation Bonds, Limited Tax Convertible to Unlimited Tax, Refunding Series 2017A, 5.250%, 12/01/47   12/22 at 103.00 N/R $1,556,279
1,275   Cornerstar Metropolitan District, Arapahoe County, Colorado, General Obligation Bonds, Limited Tax Convertible to Unlimited Tax, Refunding Series 2017B, 5.250%, 12/01/47   12/22 at 103.00 N/R 1,337,105
500   Crystal Crossing Metropolitan District, Colorado, General Obligation Limited Tax Bonds, Refunding Series 2016, 5.250%, 12/01/40   12/25 at 100.00 N/R 515,150
10,640   Denver City and County, Colorado, Airport System Revenue Bonds, Subordinate Lien Series 2013B, 5.000%, 11/15/43   11/23 at 100.00 A 11,996,600
505   Denver Connection West Metropolitan District, City and County of Denver, Colorado, Limited Tax General Obligation Bonds, Convertible to Unlimited Tax Series 2017A, 5.375%, 8/01/47   12/22 at 103.00 N/R 522,327
1,005   Denver Urban Renewal Authority, Colorado, Tax Increment Revenue Bonds, 9th and Colorado Urban Redevelopement Area, Series 2018A, 5.250%, 12/01/39, 144A   12/23 at 103.00 N/R 1,066,375
2,310   Denver Urban Renewal Authority, Colorado, Tax Increment Revenue Bonds, 9th and Colorado Urban Redevelopment Area, Series 2018A, 5.250%, 12/01/39, 144A   12/23 at 103.00 N/R 2,451,072
11,700   E-470 Public Highway Authority, Colorado, Senior Revenue Bonds, Capital Appreciation Series 2010A, 0.000%, 9/01/41   No Opt. Call BBB+ 5,568,849
    E-470 Public Highway Authority, Colorado, Senior Revenue Bonds, Series 1997B:        
35,995   0.000%, 9/01/23  –  NPFG Insured   No Opt. Call BBB+ 33,657,125
6,525   0.000%, 9/01/26  –  NPFG Insured   No Opt. Call BBB+ 5,643,929
    E-470 Public Highway Authority, Colorado, Senior Revenue Bonds, Series 2000B:        
17,030   0.000%, 9/01/25  –  NPFG Insured   No Opt. Call BBB+ 15,154,486
9,915   0.000%, 9/01/32  –  NPFG Insured   No Opt. Call BBB+ 6,871,194
43,090   0.000%, 9/01/33  –  NPFG Insured   No Opt. Call BBB+ 28,579,443
    E-470 Public Highway Authority, Colorado, Toll Revenue Bonds, Series 2004A:        
20,000   0.000%, 9/01/27  –  NPFG Insured   No Opt. Call BBB+ 16,826,400
1,150   0.000%, 9/01/28  –  NPFG Insured   No Opt. Call BBB+ 937,319
7,000   0.000%, 9/01/34  –  NPFG Insured   No Opt. Call BBB+ 4,439,330
500   Erie Highlands Metropolitan District No 1 (In the Town of Erie), Weld County, Colorado, General Obligation Limited Tax Bonds, Series 2015A, 5.750%, 12/01/45   12/20 at 103.00 N/R 514,205
500   Flatiron Meadows Metropolitan District, Boulder County, Colorado, General Obligation Limited Tax Bonds, Series 2016, 5.125%, 12/01/46   12/21 at 103.00 N/R 506,125
590   Foothills Metropolitan District, Fort Collins, Colorado, Special Revenue Bonds, Series 2014, 6.000%, 12/01/38   12/24 at 100.00 N/R 614,745
825   Forest Trace Metropolitan District 3, Aurora City, Arapahoe County, Colorado, General Obligation Bonds, Limited Tax Convertible to Unlimited Tax, Series 2016A, 5.000%, 12/01/46   12/21 at 103.00 N/R 850,616
1,355   Great Western Park Metropolitan District 2, Broomfield City and County, Colorado, General Obligation Bonds, Series 2016A, 5.000%, 12/01/46   12/21 at 100.00 N/R 1,382,845
750   Green Gables Metropolitan District No 1, Jefferson County, Colorado, General Obligation Bonds, Series 2016A, 5.300%, 12/01/46   12/21 at 103.00 N/R 773,985
700   Harmony Technology Park Metropolitan District 2, Fort Collins, Colorado, General Obligaiton Bonds, Limited Tax Convertible to Unlimited Tax Series 2017, 5.000%, 9/01/47   12/22 at 103.00 N/R 720,993
9
NVG Nuveen AMT-Free Municipal Credit Income Fund (continued)
  Portfolio of Investments July 31, 2019
  (Unaudited)
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Colorado (continued)        
$3,740   Jefferson Center Metropolitan District 1, Arvada, Jefferson County, Colorado, Revenue Bonds, Refunding Series 2015, 5.500%, 12/01/45   12/20 at 103.00 N/R $3,784,169
    Johnstown Plaza Metropolitan District, Colorado, Special Revenue Bonds, Series 2016A:        
2,325   5.250%, 12/01/36   12/21 at 103.00 N/R 2,352,830
8,955   5.375%, 12/01/46   12/21 at 103.00 N/R 9,061,385
    Lambertson Farms Metropolitan District 1, Colorado, Revenue Bonds, Refunding & Improvement Series 2015:        
1,005   5.750%, 12/15/46   12/23 at 100.00 N/R 1,040,567
5,355   6.000%, 12/15/50   12/23 at 100.00 N/R 5,590,245
980   Leyden Rock Metropolitan District No 10, In the City of Arvada, Colorado, Limited Tax General Obligation Bonds, Refunding and Improvement Series 20016A, 5.000%, 12/01/45   12/21 at 103.00 N/R 1,021,856
500   Littleton Village Metropolitan District No 2, Colorado, Limited Tax General Obligation and Special Revenue Bonds, Series 2015, 5.375%, 12/01/45   12/20 at 103.00 N/R 517,010
860   Mountain Shadows Metropolitan District, Colorado, General Obligation Limited Tax Bonds, Refunding Series 2016, 5.000%, 12/01/35   12/25 at 100.00 N/R 900,282
5,155   North Range Metropolitan District 1, Adams County, Colorado, General Obligation Bonds, Series 2016B, 3.500%, 12/01/45   12/25 at 100.00 Baa1 5,306,557
    North Range Metropolitan District No 2 , In the City of Commerce City, Adams County, Colorado , Limited Tax General Obligation and Special Revenue and Improvement Bonds, Refunding Series 2017A:        
1,000   5.625%, 12/01/37   12/22 at 103.00 N/R 1,044,510
1,000   5.750%, 12/01/47   12/22 at 103.00 N/R 1,044,600
585   Overlook Metropolitan District in the Town of Parker, Douglas County, Colorado, General Obligation Limited Tax Bonds, Series 2016A, 5.500%, 12/01/46   12/21 at 103.00 N/R 589,247
    Park 70 Metropolitan District, Aurora, Colorado, General Obligation Bonds, Limited Tax Refunding & Improvement Series 2016:        
660   5.000%, 12/01/36   12/26 at 100.00 Baa3 735,194
1,060   5.000%, 12/01/46   12/26 at 100.00 Baa3 1,168,099
660   Park Creek Metropolitan District, Colorado, Senior Limited Property Tax Supported Revenue Bonds, Refunding Series 2015A, 5.000%, 12/01/45   12/25 at 100.00 A 738,540
880   Park Creek Metropolitan District, Colorado, Senior Limited Property Tax Supported Revenue Refunding Bonds, Series 2011, 6.125%, 12/01/41 (Pre-refunded 12/01/20)  –  AGM Insured   12/20 at 100.00 A2 (4) 937,508
5,435   Poudre Tech Metro District, Colorado, Unlimited Property Tax Supported Revenue Bonds, Refunding & Improvement Series 2010A, 5.000%, 12/01/39  –  AGM Insured   12/20 at 100.00 AA 5,633,921
2,760   Prairie Center Metopolitan District No 3, In the City of Brighton, Adams County, Colorado, Limited Property Tax Supported Primary Improvements Revenue Bonds, Refunding Series 2017A, 5.000%, 12/15/41, 144A   12/26 at 100.00 N/R 2,886,104
    Reata South Metropolitan District, Douglas County, Colorado, Limited Tax General Obligation Bonds, Refunding Series 2018:        
1,310   5.375%, 12/01/37   12/23 at 103.00 N/R 1,354,357
2,765   5.500%, 12/01/47   12/23 at 103.00 N/R 2,862,494
10
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Colorado (continued)        
$1,180   Regional Transportation District, Colorado, Certificates of Participation, Series 2010A, 5.375%, 6/01/31   6/20 at 100.00 AA- $1,217,772
    Regional Transportation District, Colorado, Denver Transit Partners Eagle P3 Project Private Activity Bonds, Series 2010:        
6,500   6.500%, 1/15/30   7/20 at 100.00 Baa3 6,747,585
3,750   6.000%, 1/15/41   7/20 at 100.00 Baa3 3,875,288
1,280   Sierra Ridge Metropolitan District 2, Douglas County, Colorado, General Obligation Bonds, Limited Tax Series 2016A, 5.500%, 12/01/46   12/21 at 103.00 N/R 1,331,366
930   SouthGlenn Metropolitan District, Colorado, Special Revenue Bonds, Refunding Series 2016, 5.000%, 12/01/46   12/21 at 103.00 N/R 957,091
1,000   St Vrain Lakes Metropolitan District No 2, Weld County, Colorado, Limited Tax General Obligation Bonds, Series 2017A, 5.000%, 12/01/37   12/22 at 103.00 N/R 1,041,190
    Sterling Ranch Community Authority Board, Douglas County, Colorado, Limited Tax Supported Revenue Bonds, Senior Series 2015A:        
500   5.500%, 12/01/35   12/20 at 103.00 N/R 522,690
1,000   5.750%, 12/01/45   12/20 at 103.00 N/R 1,044,310
500   Table Mountain Metropolitan District, Jefferson County, Colorado, Limited Tax General Obligation Bonds, Series 2016A, 5.250%, 12/01/45   12/21 at 103.00 N/R 526,275
500   The Village at Dry Creek Metropolitan District No 2, In the City of Thornton, Adams County, Colorado, Limited Tax General Obligation and Special Revenue Bonds, Series 2019, 4.375%, 12/01/44   9/24 at 103.00 N/R 502,890
8,500   University of Colorado Hospital Authority, Colorado, Revenue Bonds, Series 2012A, 5.000%, 11/15/42   11/22 at 100.00 AA- 9,341,585
359,885   Total Colorado       344,287,669
    Connecticut – 0.4% (0.3% of Total Investments)        
    Connecticut Health and Educational Facilities Authority, Revenue Bonds, Healthcare Facility Expansion Church Home of Hartford Inc Project, Series 2016A:        
590   5.000%, 9/01/46, 144A   9/26 at 100.00 BB 626,421
740   5.000%, 9/01/53, 144A   9/26 at 100.00 BB 782,409
10,105   Connecticut Health and Educational Facilities Authority, Revenue Bonds, Quinnipiac University, Refunding Series 2015L, 4.125%, 7/01/41   7/25 at 100.00 A- 10,786,279
3,250   Connecticut Health and Educational Facilities Authority, Revenue Bonds, Wesleyan University, Series 2010G, 5.000%, 7/01/39 (Pre-refunded 7/01/20)   7/20 at 100.00 AA (4) 3,366,123
14,685   Total Connecticut       15,561,232
    Delaware – 0.2% (0.1% of Total Investments)        
2,615   Delaware Economic Development Authority, Exempt Facility Revenue Bonds, Indian River Power LLC Project, Series 2010, 5.375%, 10/01/45   10/20 at 100.00 Baa3 2,702,158
    Kent County, Delaware, Student Housing & Dining Facility Revenue Bonds, Collegiate Housing Foundation - Dover LLC Delaware State University Project, Series 2018A:        
2,585   5.000%, 7/01/53   1/28 at 100.00 BB+ 2,814,289
1,000   5.000%, 7/01/58   1/28 at 100.00 BB+ 1,081,200
6,200   Total Delaware       6,597,647
11
NVG Nuveen AMT-Free Municipal Credit Income Fund (continued)
  Portfolio of Investments July 31, 2019
  (Unaudited)
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    District of Columbia – 1.3% (0.9% of Total Investments)        
$3,780   District of Columbia Student Dormitory Revenue Bonds, Provident Group - Howard Properties LLC Issue, Series 2013, 5.000%, 10/01/45   10/22 at 100.00 BB+ $3,861,762
5,095   District of Columbia Tobacco Settlement Corporation, Tobacco Settlement Asset-Backed Bonds, Series 2001, 6.500%, 5/15/33   No Opt. Call Baa1 5,724,487
186,000   District of Columbia Tobacco Settlement Corporation, Tobacco Settlement Asset-Backed Bonds, Series 2006A, 0.000%, 6/15/46   9/19 at 19.24 N/R 31,545,600
1,500   District of Columbia, Revenue Bonds, Ingleside at Rock Creek Project, Series 2017A, 5.000%, 7/01/42   7/24 at 103.00 N/R 1,600,845
3,000   Metropolitan Washington Airports Authority, Virginia, Dulles Toll Road Revenue Bonds, Dulles Metrorail & Capital Improvement Projects, Refunding First Senior Lien Series 2019A, 5.000%, 10/01/44   10/28 at 100.00 A- 3,613,740
199,375   Total District of Columbia       46,346,434
    Florida – 5.3% (3.4% of Total Investments)        
990   Bexley Community Development District, Pasco County, Florida, Special Assessment Revenue Bonds, Series 2016, 4.700%, 5/01/36   5/26 at 100.00 N/R 1,020,522
19,000   Cape Coral, Florida, Water and Sewer Revenue Bonds, Refunding Series 2011, 5.000%, 10/01/41 (Pre-refunded 10/01/21)  –  AGM Insured   10/21 at 100.00 A (4) 20,592,770
    Capital Trust Agency, Florida, Revenue Bonds, Babcock Neighborhood School Inc, Series 2018:        
1,290   6.100%, 8/15/38, 144A   8/28 at 100.00 N/R 1,338,917
1,045   6.200%, 8/15/48, 144A   8/28 at 100.00 N/R 1,084,459
    Capital Trust Agency, Florida, Revenue Bonds, Odyssey Charter School Project, Series 2017A:        
1,065   5.375%, 7/01/37, 144A   7/27 at 100.00 BB 1,146,249
1,470   5.500%, 7/01/47, 144A   7/27 at 100.00 BB 1,569,931
4,325   Capital Trust Agency, Florida, Revenue Bonds, Provision CARES Proton Therapy Center, Orlando Project, Series 2018, 7.500%, 6/01/48, 144A   6/28 at 100.00 N/R 4,682,548
    Capital Trust Agency, Florida, Revenue Bonds, Renaissance Charter School Project, Series 2017A:        
6,050   5.125%, 6/15/37, 144A   6/27 at 100.00 N/R 6,318,317
1,890   5.250%, 6/15/47, 144A   6/27 at 100.00 N/R 1,957,605
880   Capital Trust Agency, Florida, Revenue Bonds, Viera Charter School Project, Series 2017A, 5.000%, 10/15/37, 144A   10/27 at 100.00 Ba2 939,066
4,670   City of Miami Beach, Florida, Stormwater Revenue Bonds, Series 2015, 5.000%, 9/01/41   9/25 at 100.00 AA- 5,404,404
1,025   Cityplace Community Development District, Florida, Special Assessement and Revenue Bonds, Refunding Series 2012, 5.000%, 5/01/26   No Opt. Call A 1,175,132
1,480   Collier County Educational Facilities Authority, Florida, Revenue Bonds, Hodges University, Refunding Series 2013, 6.125%, 11/01/43   11/23 at 100.00 BBB- 1,631,996
    Creekside at Twin Creeks Community Development District, Florida, Special Assessment Bonds, Area 1 Project, Series 2016A-1:        
245   5.250%, 11/01/37   11/28 at 100.00 N/R 258,948
320   5.600%, 11/01/46   11/28 at 100.00 N/R 341,942
145   Creekside at Twin Creeks Community Development District, Florida, Special Assessment Bonds, Area 1 Project, Series 2016A-2, 5.625%, 11/01/35   No Opt. Call N/R 158,378
12
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Florida (continued)        
    Davie, Florida, Educational Facilities Revenue Bonds, Nova Southeastern University Project, Series 2013A:        
$3,445   6.000%, 4/01/42   4/23 at 100.00 Baa1 $3,906,596
1,720   5.625%, 4/01/43   4/23 at 100.00 Baa1 1,911,814
4,000   Davie, Florida, Water and Sewerage Revenue Bonds, Series 2011, 5.000%, 10/01/41  –  AGM Insured   10/21 at 100.00 A1 4,286,920
    Downtown Doral Community Development District, Florida, Special Assessment Bonds, Series 2015:        
280   5.250%, 5/01/35   5/26 at 100.00 N/R 292,580
315   5.300%, 5/01/36   5/26 at 100.00 N/R 329,128
475   5.500%, 5/01/45   5/26 at 100.00 N/R 499,980
655   5.500%, 5/01/46   5/26 at 100.00 N/R 689,446
    Florida Development Finance Corporation, Educational Facilities Revenue Bonds, Classical Preparatory Incorporated Project, Series 2017A:        
255   6.000%, 6/15/37, 144A   6/26 at 100.00 N/R 270,568
665   6.125%, 6/15/46, 144A   6/26 at 100.00 N/R 705,525
415   Florida Development Finance Corporation, Educational Facilities Revenue Bonds, Classical Preparatory Incorporated Project, Series 2018A, 6.000%, 6/15/37, 144A   6/26 at 100.00 N/R 424,325
    Florida Development Finance Corporation, Educational Facilities Revenue Bonds, Downtown Doral Charter Upper School Project, Series 2017C:        
2,375   5.650%, 7/01/37, 144A   7/27 at 101.00 N/R 2,429,934
3,735   5.750%, 7/01/47, 144A   7/27 at 101.00 N/R 3,815,713
    Florida Development Finance Corporation, Educational Facilities Revenue Bonds, Florida Charter Foundation Inc Projects, Series 2016A:        
1,485   6.250%, 6/15/36, 144A   6/26 at 100.00 N/R 1,687,703
2,075   4.750%, 7/15/36, 144A   7/26 at 100.00 N/R 2,101,913
4,250   6.375%, 6/15/46, 144A   6/26 at 100.00 N/R 4,807,217
1,335   5.000%, 7/15/46, 144A   7/26 at 100.00 N/R 1,356,907
    Florida Development Finance Corporation, Educational Facilities Revenue Bonds, Renaissance Charter School Income Projects, Series 2015A:        
3,090   6.000%, 6/15/35, 144A   6/25 at 100.00 N/R 3,406,879
3,450   6.125%, 6/15/46, 144A   6/25 at 100.00 N/R 3,762,673
550   Florida Development Finance Corporation, Educational Facilities Revenue Bonds, Renaissance Charter School, Inc Projects, Series 2014A, 6.125%, 6/15/44   6/24 at 100.00 N/R 590,398
4,430   Florida Development Finance Corporation, Educational Facilities Revenue Bonds, Southwest Charter Foundation Inc Projects, Series 2017A, 6.125%, 6/15/47, 144A   6/27 at 100.00 N/R 4,633,337
1,435   Grand Bay at Doral Community Development District, Miami-Dade County, Florida, Special Assessment Bonds, South Parcel Assessment Area Project, Series 2016, 4.750%, 5/01/36   5/26 at 100.00 N/R 1,474,922
560   Hillsborough County Industrial Development Authority, Florida, Industrial Development Revenue Bonds, University Community Hospital, Series 1994, 6.500%, 8/15/19  –  NPFG Insured (ETM)   No Opt. Call N/R (4) 561,086
13
NVG Nuveen AMT-Free Municipal Credit Income Fund (continued)
  Portfolio of Investments July 31, 2019
  (Unaudited)
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Florida (continued)        
    Indian Trace Development District, Florida, Water Management Special Benefit Assessment Bonds, Series 2005:        
$1,645   5.000%, 5/01/25  –  NPFG Insured   10/19 at 100.00 Baa2 $1,655,791
1,830   5.000%, 5/01/27  –  NPFG Insured   10/19 at 100.00 Baa2 1,840,705
600   Jacksonville, Florida, Better Jacksonville Sales Tax Revenue Bonds, Refunding Series 2012, 5.000%, 10/01/30   10/22 at 100.00 A2 663,120
2,215   Jacksonville, Florida, Educational Facilities Revenue Bonds, Jacksonville University Project, Series 2018B, 5.000%, 6/01/53, 144A   6/28 at 100.00 N/R 2,393,706
1,000   Lakeland, Florida, Hospital System Revenue Bonds, Lakeland Regional Health, Refunding Series 2011, 5.000%, 11/15/25   11/21 at 100.00 A2 1,076,410
625   Lakewood Ranch Stewardship District, Florida, Special Assessment Revenue Bonds, Del Webb Project, Series 2017, 5.000%, 5/01/37, 144A   5/27 at 100.00 N/R 660,275
4,125   Martin County Health Facilities Authority, Florida, Hospital Revenue Bonds, Martin Memorial Medical Center, Series 2015, 5.000%, 11/15/45 (Pre-refunded 11/15/24)   11/24 at 100.00 A+ (4) 4,904,501
    Miami Dade County Industrial Development Authority, Florida, Educational Facilities Revenue Bonds, South Florida Autism Charter School Project, Series 2017:        
1,080   5.875%, 7/01/37, 144A   7/27 at 100.00 N/R 1,104,948
1,920   6.000%, 7/01/47, 144A   7/27 at 100.00 N/R 1,962,298
5,965   Miami Dade County, Florida, Rickenbacker Causeway Revenue Bonds, Series 2014, 5.000%, 10/01/43   10/24 at 100.00 BBB+ 6,653,480
2,130   Miami Health Facilities Authority, Florida, Health Facilities Revenue Bonds, Miami Jewish Health System Inc. Project, Series 2017, 5.125%, 7/01/46   7/27 at 100.00 BBB 2,394,269
1,545   Miami, Florida, Special Obligation Non-Ad Valorem Revenue Bonds, Refunding Series 2011A, 6.000%, 2/01/31 (Pre-refunded 2/01/21)  –  AGM Insured   2/21 at 100.00 A+ (4) 1,658,079
5,000   Miami-Dade County Expressway Authority, Florida, Toll System Revenue Bonds, Series 2014A, 5.000%, 7/01/44   7/24 at 100.00 A3 5,585,350
2,500   Miami-Dade County, Florida, Aviation Revenue Bonds, Miami International Airport, Series 2010A-1, 5.375%, 10/01/41 (Pre-refunded 10/01/20)   10/20 at 100.00 A2 (4) 2,622,925
2,500   Miami-Dade County, Florida, Aviation Revenue Bonds, Miami International Airport, Series 2010B, 5.000%, 10/01/30 (Pre-refunded 10/01/20)   10/20 at 100.00 A (4) 2,609,125
2,400   Miami-Dade County, Florida, Special Obligation Bonds, Refunding Subordinate Series 2012B, 5.000%, 10/01/37   10/22 at 100.00 A2 2,629,560
6,305   Miami-Dade County, Florida, Water and Sewer System Revenue Bonds, Series 2013A, 5.000%, 10/01/42   10/22 at 100.00 A+ 6,921,503
4,785   Northern Palm Beach County Improvement District, Florida, Water Control and Improvement Bonds, Development Unit 53, Series 2015, 5.350%, 8/01/35   8/26 at 100.00 N/R 5,207,085
4,270   Orange County Health Facilities Authority, Florida, Hospital Revenue Bonds, Orlando Health, Inc, Series 2012A, 5.000%, 10/01/42   4/22 at 100.00 A2 4,591,574
230   Palm Beach County Health Facilities Authority, Florida, Revenue Bonds, Sinai Residences of Boca Raton Project, Series 2014A, 7.250%, 6/01/34   6/22 at 102.00 N/R 258,205
60   Pasco County, Florida, Water and Sewer Revenue Bonds, Refunding Series 2006, 5.000%, 10/01/36  –  AGM Insured   9/19 at 100.00 Aa2 60,194
825   Reunion West Community Development District, Florida, Special Assessment Bonds, Area 3 Project, Series 2016, 5.000%, 11/01/46   11/26 at 100.00 N/R 854,758
14
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Florida (continued)        
$1,410   Seminole County, Florida, Water and Sewer Revenue Bonds, Refunding & Improvement Series 1992, 6.000%, 10/01/19  –  NPFG Insured (ETM)   No Opt. Call Aa2 (4) $1,421,421
    Six Mile Creek Community Development District, Florida, Capital Improvement Revenue Bonds, Assessment Area 2, Series 2016:        
230   4.750%, 11/01/28   11/27 at 100.00 N/R 237,986
380   5.375%, 11/01/36   11/27 at 100.00 N/R 398,400
925   South Fork III Community Development District, Florida, Special Assessment Revenue Bonds, Refunding Series 2016, 5.375%, 5/01/37   5/27 at 100.00 N/R 986,355
1,200   St Lucie County, Florida, Utility System Revenue Refunding Bonds, Series 1993, 5.500%, 10/01/21  –  FGIC Insured (ETM)   No Opt. Call N/R (4) 1,309,332
400   Tamarac, Florida, Utility System Revenue Bonds, Series 2009, 5.000%, 10/01/39 (Pre-refunded 10/01/19)  –  AGC Insured   10/19 at 100.00 AA (4) 402,588
4,100   Tampa, Florida, Health System Revenue Bonds, Baycare Health System, Series 2012A, 5.000%, 11/15/33   5/22 at 100.00 Aa2 4,475,929
945   Tampa, Florida, Healthcare System Revenue Bonds, Allegany Health System - St Joseph's Hospital, Series 1993, 5.125%, 12/01/23  –  NPFG Insured (ETM)   10/19 at 100.00 Aaa (4) 994,244
10,095   Tampa-Hillsborough County Expressway Authority, Florida, Revenue Bonds, Refunding Series 2012B, 5.000%, 7/01/42 (Pre-refunded 7/01/22)   7/22 at 100.00 A2 (4) 11,199,393
2,000   Volusia County Educational Facilities Authority, Florida, Revenue Bonds, Embry-Riddle Aeronautical University, Inc Project, Refunding Series 2011, 5.000%, 10/15/29 (Pre-refunded 10/15/21)  –  AGM Insured   10/21 at 100.00 A- (4) 2,166,060
5,000   Volusia County Educational Facilities Authority, Florida, Revenue Bonds, Stetson University Inc Project, Series 2015, 5.000%, 6/01/40   6/25 at 100.00 A- 5,671,450
167,125   Total Florida       181,137,767
    Georgia – 3.7% (2.4% of Total Investments)        
    Atlanta, Georgia, Water and Wastewater Revenue Bonds, Refunding Series 2009B:        
5,915   5.375%, 11/01/39  –  AGM Insured   11/19 at 100.00 AA- 5,975,629
11,085   5.375%, 11/01/39 (Pre-refunded 11/01/19)  –  AGM Insured   11/19 at 100.00 AA (4) 11,202,501
5,680   Burke County Development Authority, Georgia, Pollution Control Revenue Bonds, Oglethorpe Power Corporation Vogtle Project, Series 2017C, 4.125%, 11/01/45   2/28 at 100.00 BBB+ 6,001,147
10,835   Burke County Development Authority, Georgia, Pollution Control Revenue Bonds, Oglethorpe Power Corporation Vogtle Project, Series 2017D, 4.125%, 11/01/45   2/28 at 100.00 BBB+ 11,447,611
2,825   Cherokee County Water and Sewerage Authority, Georgia, Revenue Bonds, Refunding Series 2007, 4.000%, 8/01/26   8/20 at 100.00 AA 2,891,811
1,250   DeKalb County Hospital Authority, Georgia, Anticipation Certificates Revenue Bonds, DeKalb Medical Center, Inc Project, Series 2010, 6.000%, 9/01/30 (Pre-refunded 9/01/20)   9/20 at 100.00 N/R (4) 1,312,263
2,000   Fairburn, Georgia, General Obligation Bonds, Series 2011, 5.750%, 12/01/31 (Pre-refunded 12/01/21)  –  AGM Insured   12/21 at 100.00 A2 (4) 2,213,380
15
NVG Nuveen AMT-Free Municipal Credit Income Fund (continued)
  Portfolio of Investments July 31, 2019
  (Unaudited)
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Georgia (continued)        
    Gainesville and Hall County Hospital Authority, Georgia, Revenue Anticipation Certificates, Northeast Georgia Health Services Inc, Series 2010B:        
$1,180   5.250%, 2/15/37   2/20 at 100.00 AA- $1,202,184
3,820   5.250%, 2/15/37 (Pre-refunded 2/15/20)   2/20 at 100.00 N/R (4) 3,905,339
960   5.125%, 2/15/40   2/20 at 100.00 AA- 976,531
3,090   5.125%, 2/15/40 (Pre-refunded 2/15/20)   2/20 at 100.00 N/R (4) 3,156,960
15,305   Gainesville and Hall County Hospital Authority, Georgia, Revenue Anticipation Certificates, Northeast Georgia Health Services Inc, Series 2014A, 5.500%, 8/15/54   2/25 at 100.00 AA- 17,708,497
    Georgia Housing and Finance Authority, Single Family Mortgage Bonds, Series 2018A:        
6,760   3.950%, 12/01/43   6/27 at 100.00 AAA 7,215,421
5,000   4.000%, 12/01/48   6/27 at 100.00 AAA 5,309,050
10,825   Georgia Municipal Electric Authority, Plant Vogtle Units 3 & 4 Project J Bonds, Series 2015A, 5.000%, 7/01/60   7/25 at 100.00 Baa3 11,525,810
2,250   Gwinnett County Hospital Authority, Georgia, Revenue Anticipation Certificates, Gwinnett Hospital System Inc Project, Series 2007C, 5.500%, 7/01/39  –  AGM Insured   8/19 at 100.00 A2 2,257,178
1,300   Macon-Bibb County Urban Development Authority, Georgia, Revenue Bonds, Academy for Classical Education, Series 2017, 5.750%, 6/15/37, 144A   6/27 at 100.00 N/R 1,358,409
4,000   Marietta Development Authority, Georgia, University Facilities Revenue Bonds, Life University, Inc Project, Refunding Series 2017A, 5.000%, 11/01/37, 144A   11/27 at 100.00 Ba3 4,484,200
    Municipal Electric Authority of Georgia, Plant Vogtle Units 3&4 Project J Bonds, Series 2019A:        
8,680   5.000%, 1/01/49   7/28 at 100.00 N/R 9,627,248
4,000   5.000%, 1/01/59   7/28 at 100.00 N/R 4,372,600
1,000   Private Colleges and Universities Authority, Georgia, Revenue Bonds, Mercer University, Refunding Series 2012C, 5.250%, 10/01/27   10/22 at 100.00 Baa1 1,101,260
10,090   Private Colleges and Universities Authority, Georgia, Revenue Bonds, Mercer University, Series 2015, 5.000%, 10/01/40   10/25 at 100.00 Baa1 11,242,278
1,710   Valdosta and Lowndes County Hospital Authority, Georgia, Revenue Certificates, South Georgia Medical Center Project, Series 2011B, 5.000%, 10/01/41   10/21 at 100.00 AA- 1,821,424
119,560   Total Georgia       128,308,731
    Guam – 0.0% (0.0% of Total Investments)        
650   Guam Government Waterworks Authority, Water and Wastewater System Revenue Bonds, Series 2013, 5.500%, 7/01/43   7/23 at 100.00 BBB- 712,277
    Hawaii – 0.4% (0.2% of Total Investments)        
1,500   Hawaii Department of Budget and Finance, Special Purpose Revenue Bonds, Chaminade University of Honolulu, Series 2015A, 5.000%, 1/01/45, 144A   1/25 at 100.00 Ba3 1,525,530
5,000   Hawaii Department of Budget and Finance, Special Purpose Revenue Bonds, Hawaii Pacific Health Obligated Group, Series 2013A, 5.500%, 7/01/43   7/23 at 100.00 A1 5,633,700
170   Hawaii Department of Budget and Finance, Special Purpose Revenue Bonds, Hawaii Pacific University, Series 2013A, 6.875%, 7/01/43   7/23 at 100.00 BB 181,318
5,075   Hawaii Department of Budget and Finance, Special Purpose Revenue Bonds, Queens Health Systems, Series 2015A, 4.000%, 7/01/40   7/25 at 100.00 A1 5,387,062
11,745   Total Hawaii       12,727,610
16
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Idaho – 0.8% (0.5% of Total Investments)        
    Idaho Health Facilities Authority, Revenue Bonds, Kootenai Health Project, Series 2014:        
$3,300   4.375%, 7/01/34, 144A   7/24 at 100.00 A $3,517,635
12,495   4.750%, 7/01/44, 144A   7/24 at 100.00 A 13,289,432
1,250   Idaho Health Facilities Authority, Revenue Bonds, Madison Memorial Hospital Project, Refunding Series 2016, 5.000%, 9/01/37   9/26 at 100.00 BB+ 1,387,488
8,730   Idaho Health Facilities Authority, Revenue Bonds, Saint Luke's Health System Project, Series 2012A, 5.000%, 3/01/47   3/22 at 100.00 A- 9,245,681
1,000   Idaho Health Facilities Authority, Revenue Bonds, Saint Luke's Health System Project, Series 2014A, 4.125%, 3/01/37   3/24 at 100.00 A- 1,042,850
26,775   Total Idaho       28,483,086
    Illinois – 25.5% (16.3% of Total Investments)        
675   Bolingbrook, Illinois, General Obligation Bonds, Refunding Series 2013A, 5.000%, 1/01/25   7/23 at 100.00 A2 764,228
67,135   Chicago Board of Education, Illinois, Dedicated Capital Improvement Tax Revenue Bonds, Series 2016, 6.000%, 4/01/46   4/27 at 100.00 A 78,919,878
1,000   Chicago Board of Education, Illinois, Dedicated Capital Improvement Tax Revenue Bonds, Series 2017, 5.000%, 4/01/46   4/27 at 100.00 A 1,099,320
    Chicago Board of Education, Illinois, General Obligation Bonds, Dedicated Revenues Series 2011A:        
6,210   5.500%, 12/01/39   12/21 at 100.00 B2 6,491,375
1,865   5.000%, 12/01/41   12/21 at 100.00 B2 1,926,750
5,205   Chicago Board of Education, Illinois, General Obligation Bonds, Dedicated Revenues Series 2012A, 5.000%, 12/01/42   12/22 at 100.00 B2 5,436,310
8,400   Chicago Board of Education, Illinois, General Obligation Bonds, Dedicated Revenues, Refunding Series 2017B, 7.000%, 12/01/42, 144A   12/27 at 100.00 B+ 10,521,840
    Chicago Board of Education, Illinois, General Obligation Bonds, Dedicated Revenues, Refunding Series 2017H:        
5,835   5.000%, 12/01/36   12/27 at 100.00 B+ 6,495,755
4,940   5.000%, 12/01/46   12/27 at 100.00 B+ 5,377,141
6,055   Chicago Board of Education, Illinois, General Obligation Bonds, Dedicated Revenues, Refunding Series 2018D, 5.000%, 12/01/46   12/28 at 100.00 B+ 6,644,696
38,905   Chicago Board of Education, Illinois, General Obligation Bonds, Dedicated Revenues, Series 2016A, 7.000%, 12/01/44   12/25 at 100.00 B+ 46,804,660
14,805   Chicago Board of Education, Illinois, General Obligation Bonds, Dedicated Revenues, Series 2016B, 6.500%, 12/01/46   12/26 at 100.00 B+ 17,728,099
19,585   Chicago Board of Education, Illinois, General Obligation Bonds, Dedicated Revenues, Series 2017A, 7.000%, 12/01/46, 144A   12/27 at 100.00 B+ 24,460,490
1,345   Chicago Board of Education, Illinois, Unlimited Tax General Obligation Bonds, Dedicated Tax Revenues, Series 1998B-1, 0.000%, 12/01/30  –  NPFG Insured   No Opt. Call B+ 938,460
2,235   Chicago Transit Authority, Illinois, Capital Grant Receipts Revenue Bonds, Federal Transit Administration Section 5307 Urbanized Area Formula Funds, Refunding Series 2011, 5.250%, 6/01/26  –  AGM Insured   6/21 at 100.00 A2 2,380,297
1,100   Chicago Transit Authority, Illinois, Sales Tax Receipts Revenue Bonds, Series 2011, 5.250%, 12/01/40   12/21 at 100.00 A3 1,162,062
17
NVG Nuveen AMT-Free Municipal Credit Income Fund (continued)
  Portfolio of Investments July 31, 2019
  (Unaudited)
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Illinois (continued)        
$12,215   Chicago Transit Authority, Illinois, Sales Tax Receipts Revenue Bonds, Series 2014, 5.250%, 12/01/49   12/24 at 100.00 AA $13,653,438
7,700   Chicago, Illinois, General Airport Revenue Bonds, O'Hare International Airport, Third Lien Refunding Series 2010C, 5.250%, 1/01/35  –  AGC Insured   1/20 at 100.00 A2 7,820,197
    Chicago, Illinois, General Obligation Bonds, City Colleges, Series 1999:        
1,500   0.000%, 1/01/31  –  NPFG Insured   No Opt. Call BBB- 1,043,010
32,670   0.000%, 1/01/32  –  FGIC Insured   No Opt. Call BBB- 21,761,487
12,360   0.000%, 1/01/37  –  FGIC Insured   No Opt. Call BBB- 6,600,611
960   Chicago, Illinois, General Obligation Bonds, Project & Refunding Series 2007A, 5.000%, 1/01/27  –  AMBAC Insured   9/19 at 100.00 Ba1 963,216
2,500   Chicago, Illinois, General Obligation Bonds, Project & Refunding Series 2014A, 5.250%, 1/01/33   1/24 at 100.00 Ba1 2,712,250
17,605   Chicago, Illinois, General Obligation Bonds, Project & Refunding Series 2017A, 6.000%, 1/01/38   1/27 at 100.00 BBB- 20,634,644
935   Chicago, Illinois, General Obligation Bonds, Project and Refunding Series 2009C, 5.000%, 1/01/34   9/19 at 100.00 Ba1 937,356
1,000   Chicago, Illinois, General Obligation Bonds, Project Series 2011A, 5.250%, 1/01/35   1/21 at 100.00 Ba1 1,029,750
10,200   Chicago, Illinois, General Obligation Bonds, Project Series 2012A, 5.000%, 1/01/33   1/22 at 100.00 Ba1 10,640,232
2,605   Chicago, Illinois, General Obligation Bonds, Refunding Series 2016C, 5.000%, 1/01/38   1/26 at 100.00 BBB- 2,831,843
3,000   Chicago, Illinois, Wastewater Transmission Revenue Bonds, Second Lien Series 2008C, 5.000%, 1/01/39   1/25 at 100.00 A 3,318,420
10,000   Cook County Community College District 508, Illinois, General Obligation Bonds, Chicago City Colleges, Series 2013, 5.250%, 12/01/43   12/23 at 100.00 BBB 10,529,400
    DeKalb, Kane, LaSalle, Lee, Ogle, Winnebago and Boone Counties Community College District 523, Illinois, General Obligation Bonds, Kishwaukee Community College, Series 2011B:        
2,500   0.000%, 2/01/33   2/21 at 44.26 AA- 1,078,475
2,000   0.000%, 2/01/34   2/21 at 41.04 AA- 799,700
    Illinois Educational Facilities Authority, Revenue Bonds, Field Museum of Natural History, Series 2002RMKT:        
2,500   4.450%, 11/01/36   11/25 at 102.00 A2 2,747,050
3,400   5.500%, 11/01/36   11/23 at 100.00 A 3,777,060
3,295   Illinois Educational Facilities Authority, Revenue Bonds, Robert Morris College, Series 2000, 5.800%, 6/01/30  –  NPFG Insured   9/19 at 100.00 Baa2 3,305,478
    Illinois Finance Authority, Charter School Revenue Bonds, Intrinsic Charter Schools Belmont School Project, Series 2015A:        
1,700   5.750%, 12/01/35, 144A   12/25 at 100.00 N/R 1,795,693
115   6.000%, 12/01/45, 144A   12/25 at 100.00 N/R 120,974
6,500   Illinois Finance Authority, Recovery Zone Facility Revenue Bonds, Navistar International Corporation Project, Series 2010, 6.500%, 10/15/40   10/20 at 100.00 B1 6,756,425
18
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Illinois (continued)        
    Illinois Finance Authority, Revenue Bonds, Ascension Health/fkaPresence Health Network, Series 2016C:        
$80   4.000%, 2/15/41 (Pre-refunded 2/15/27)   2/27 at 100.00 N/R (4) $93,642
39,595   4.000%, 2/15/41   2/27 at 100.00 Aa2 43,089,259
6,750   Illinois Finance Authority, Revenue Bonds, Centegra Health System, Series 2012, 5.000%, 9/01/38   9/22 at 100.00 AA+ 7,318,957
    Illinois Finance Authority, Revenue Bonds, Centegra Health System, Series 2014A:        
1,485   5.000%, 9/01/34   9/24 at 100.00 AA+ 1,688,965
19,025   5.000%, 9/01/42   9/24 at 100.00 AA+ 21,229,046
1,750   Illinois Finance Authority, Revenue Bonds, Ingalls Health System, Series 2013, 4.250%, 5/15/43   5/22 at 100.00 Baa2 1,799,018
15,805   Illinois Finance Authority, Revenue Bonds, Mercy Health Corporation, Series 2016, 5.000%, 12/01/46   6/26 at 100.00 A3 17,748,857
1,630   Illinois Finance Authority, Revenue Bonds, Northwestern Memorial HealthCare, Series 2013, 5.000%, 8/15/37   8/22 at 100.00 Aa2 1,781,720
1,435   Illinois Finance Authority, Revenue Bonds, Rehabilitation Institute of Chicago, Series 2013A, 6.000%, 7/01/43   7/23 at 100.00 A- 1,618,694
    Illinois Finance Authority, Revenue Bonds, Rosalind Franklin University Research Building Project, Series 2017C:        
1,000   5.000%, 8/01/42   8/27 at 100.00 BBB+ 1,125,240
1,000   5.000%, 8/01/46   8/27 at 100.00 BBB+ 1,122,370
1,000   5.000%, 8/01/47   8/27 at 100.00 BBB+ 1,122,020
    Illinois Finance Authority, Revenue Bonds, Silver Cross Hospital and Medical Centers, Refunding Series 2015C:        
560   5.000%, 8/15/35   8/25 at 100.00 Baa1 633,618
6,140   5.000%, 8/15/44   8/25 at 100.00 Baa1 6,835,723
8,960   Illinois Finance Authority, Revenue Bonds, The Carle Foundation, Series 2011A, 6.000%, 8/15/41  –  AGM Insured   8/21 at 100.00 A2 9,705,472
    Illinois Finance Authority, Revenue Bonds, The University of Chicago Medical Center, Series 2011C:        
1,150   5.500%, 8/15/41 (Pre-refunded 2/15/21)   2/21 at 100.00 AA- (4) 1,224,854
4,500   5.500%, 8/15/41 (Pre-refunded 2/15/21) (UB) (5)   2/21 at 100.00 AA- (4) 4,792,905
20,000   Illinois Finance Authority, Revenue Bonds, University of Chicago, Refunding Series 2015A, 5.000%, 10/01/46 (UB) (5)   10/25 at 100.00 AA- 22,971,600
19,975   Illinois Finance Authority, Revenue Bonds, University of Chicago, Series 2012A, 5.000%, 10/01/51   10/21 at 100.00 AA- 21,219,642
3,665   Illinois Sports Facility Authority, State Tax Supported Bonds, Refunding Series 2014, 5.250%, 6/15/31  –  AGM Insured   6/24 at 100.00 BBB- 4,113,853
    Illinois State, General Obligation Bonds, February Series 2014:        
3,200   5.250%, 2/01/32   2/24 at 100.00 BBB- 3,473,568
2,000   5.250%, 2/01/33   2/24 at 100.00 BBB- 2,166,880
1,575   5.250%, 2/01/34   2/24 at 100.00 BBB- 1,703,016
7,500   5.000%, 2/01/39   2/24 at 100.00 BBB- 7,957,425
19
NVG Nuveen AMT-Free Municipal Credit Income Fund (continued)
  Portfolio of Investments July 31, 2019
  (Unaudited)
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Illinois (continued)        
$5,000   Illinois State, General Obligation Bonds, June Series 2016, 4.000%, 6/01/35   6/26 at 100.00 BBB- $5,071,450
    Illinois State, General Obligation Bonds, May Series 2014:        
510   5.000%, 5/01/36   5/24 at 100.00 BBB- 545,414
3,245   5.000%, 5/01/39   5/24 at 100.00 BBB- 3,451,512
    Illinois State, General Obligation Bonds, November Series 2016:        
11,800   5.000%, 11/01/40   11/26 at 100.00 BBB- 12,836,394
13,200   5.000%, 11/01/41   11/26 at 100.00 BBB- 14,338,632
    Illinois State, General Obligation Bonds, November Series 2017D:        
1,540   5.000%, 11/01/27   No Opt. Call BBB- 1,750,410
30,560   5.000%, 11/01/28   11/27 at 100.00 BBB- 34,545,330
5,000   Illinois State, General Obligation Bonds, October Series 2016, 5.000%, 2/01/29   2/27 at 100.00 BBB- 5,667,250
2,625   Illinois State, General Obligation Bonds, Refunding Series 2010, 5.000%, 1/01/24   1/20 at 100.00 BBB- 2,652,720
    Illinois State, General Obligation Bonds, Refunding Series 2012:        
3,425   5.000%, 8/01/23   No Opt. Call BBB- 3,739,244
1,190   5.000%, 8/01/25   8/22 at 100.00 BBB- 1,271,444
    Illinois State, General Obligation Bonds, Series 2013:        
2,000   5.250%, 7/01/31   7/23 at 100.00 BBB- 2,156,380
2,990   5.500%, 7/01/38   7/23 at 100.00 BBB- 3,235,240
5,000   Illinois Toll Highway Authority, Toll Highway Revenue Bonds, Senior Lien Series 2013A, 5.000%, 1/01/35   1/23 at 100.00 A1 5,522,250
18,920   Illinois Toll Highway Authority, Toll Highway Revenue Bonds, Senior Lien Series 2015A, 5.000%, 1/01/40   7/25 at 100.00 A1 21,622,722
10,000   Illinois Toll Highway Authority, Toll Highway Revenue Bonds, Senior Lien Series 2019A, 5.000%, 1/01/44   7/29 at 100.00 A1 11,989,000
1,395   Illinois Toll Highway Authority, Toll Highway Revenue Bonds, Tender Option Bond Trust 2015-XF0051, 13.632%, 1/01/38, 144A (IF)   1/23 at 100.00 A1 1,927,583
7,400   Macon County School District 61 Decatur, Illinois, General Obligation Bonds, Alternate Revenue Source Series 2011A, 5.250%, 1/01/37  –  AGM Insured   1/21 at 100.00 A2 7,738,254
17,500   Metropolitan Pier and Exposition Authority, Illinois, McCormick Place Expansion Project Bonds, Refunding Series 2012B, 5.000%, 6/15/52   6/22 at 100.00 BBB- 18,355,400
540   Metropolitan Pier and Exposition Authority, Illinois, McCormick Place Expansion Project Bonds, Refunding Series 2015B, 5.000%, 6/15/52   12/25 at 100.00 BBB- 586,024
    Metropolitan Pier and Exposition Authority, Illinois, McCormick Place Expansion Project Bonds, Series 2015A:        
2,890   0.000%, 12/15/52   No Opt. Call BBB- 762,613
5,185   5.000%, 6/15/53   12/25 at 100.00 BBB- 5,623,807
5,700   5.500%, 6/15/53   12/25 at 100.00 BBB- 6,343,815
    Metropolitan Pier and Exposition Authority, Illinois, McCormick Place Expansion Project Refunding Bonds, Series 2010A:        
3,650   5.500%, 6/15/50 (Pre-refunded 6/15/20)   6/20 at 100.00 BBB- (4) 3,786,912
11,365   5.500%, 6/15/50   6/20 at 100.00 Ba1 11,581,958
20
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Illinois (continued)        
    Metropolitan Pier and Exposition Authority, Illinois, Revenue Bonds, McCormick Place Expansion Project, Capital Appreciation Refunding Series 2010B-1:        
$25,000   0.000%, 6/15/44  –  AGM Insured   No Opt. Call BBB- $10,280,250
43,200   0.000%, 6/15/45  –  AGM Insured   No Opt. Call BBB- 16,999,200
10,000   0.000%, 6/15/46  –  AGM Insured   No Opt. Call BBB- 3,766,200
41,205   Metropolitan Pier and Exposition Authority, Illinois, Revenue Bonds, McCormick Place Expansion Project, Refunding Series 2010B-2, 5.000%, 6/15/50   6/20 at 100.00 Ba1 41,816,482
8,750   Metropolitan Pier and Exposition Authority, Illinois, Revenue Bonds, McCormick Place Expansion Project, Series 1994B, 0.000%, 6/15/28  –  NPFG Insured   No Opt. Call BBB 6,902,963
    Metropolitan Pier and Exposition Authority, Illinois, Revenue Bonds, McCormick Place Expansion Project, Series 2002A:        
18,085   0.000%, 12/15/24  –  NPFG Insured   No Opt. Call BBB- 15,998,353
20,045   0.000%, 12/15/35  –  AGM Insured   No Opt. Call BBB- 12,007,155
1,846   Plano, Illinois, Special Tax Bonds, Special Service Area 1 & 2 Lakewood Springs Project, Refunding Series 2014, 5.000%, 3/01/34  –  AGM Insured   3/24 at 100.00 AA 2,036,507
2,600   Regional Transportation Authority, Cook, DuPage, Kane, Lake, McHenry and Will Counties, Illinois, General Obligation Bonds, Series 2000A, 6.500%, 7/01/30  –  NPFG Insured   No Opt. Call A2 3,586,440
3,900   Rosemont Village, Illinois, General Obligation Bonds, Corporate Purpose Series 2011A, 5.600%, 12/01/35 (Pre-refunded 12/01/20)  –  AGM Insured   12/20 at 100.00 A2 (4) 4,133,259
7,025   Southwestern Illinois Development Authority, Health Facility Revenue Bonds, Memorial Group, Inc, Series 2013, 7.625%, 11/01/48 (Pre-refunded 11/01/23)   11/23 at 100.00 N/R (4) 8,871,662
4,000   Southwestern Illinois Development Authority, School Revenue Bonds, Triad School District 2, Madison County, Illinois, Series 2006, 0.000%, 10/01/25  –  NPFG Insured   No Opt. Call Baa2 3,462,480
12,125   Springfield, Illinois, Electric Revenue Bonds, Senior Lien Series 2015, 5.000%, 3/01/40  –  AGM Insured   3/25 at 100.00 A2 13,627,045
    Will County Community Unit School District 201U, Crete-Monee, Illinois, General Obligation Bonds, Capital Appreciation Series 2004:        
780   0.000%, 11/01/22 (ETM)   No Opt. Call Baa2 (4) 744,253
2,550   0.000%, 11/01/22  –  NPFG Insured   No Opt. Call Baa2 2,399,091
6,415   Will County School District 122, New Lenox, Illinois, General Obligation Bonds, Capital Appreciation School Series 2004D, 0.000%, 11/01/24  –  AGM Insured   No Opt. Call Aa3 5,788,704
    Williamson & Johnson Counties Community Unit School District 2, Marion, Illinois, General Obligation Bonds, Series 2011:        
930   7.000%, 12/01/21  –  AGM Insured   12/20 at 100.00 A2 994,254
1,035   7.000%, 12/01/22  –  AGM Insured   12/20 at 100.00 A2 1,104,718
1,155   7.000%, 12/01/23  –  AGM Insured   12/20 at 100.00 A2 1,232,939
1,065   7.000%, 12/01/26  –  AGM Insured   12/20 at 100.00 A2 1,133,405
2,085   7.250%, 12/01/29 (Pre-refunded 12/01/20)  –  AGM Insured   12/20 at 100.00 A2 (4) 2,250,674
2,295   7.250%, 12/01/30 (Pre-refunded 12/01/20)  –  AGM Insured   12/20 at 100.00 A2 (4) 2,477,361
881,056   Total Illinois       877,259,567
21
NVG Nuveen AMT-Free Municipal Credit Income Fund (continued)
  Portfolio of Investments July 31, 2019
  (Unaudited)
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Indiana – 3.3% (2.1% of Total Investments)        
    Allen County, Indiana, Economic Development Revenue Bonds, Fort Wayne Project, Senior Series 2017A-1:        
$500   6.625%, 1/15/34, 144A   1/24 at 104.00 N/R $551,515
675   6.750%, 1/15/43, 144A   1/24 at 104.00 N/R 739,847
1,605   Chesterton, Indiana, Economic Development Revenue Bonds, Storypoint Chesterton Project, Series 2016, 6.250%, 1/15/43, 144A   1/24 at 104.00 N/R 1,716,146
2,640   Crown Point Multi-School Building Corporation, Indiana, First Mortgage Bonds, Crown Point Community School Corporation, Series 2000, 0.000%, 1/15/24  –  NPFG Insured   No Opt. Call Baa2 2,470,750
12,045   Indiana Finance Authority, Educational Facilities Revenue Bonds, Valparaiso University Project, Series 2014, 5.000%, 10/01/44   10/24 at 100.00 A3 13,347,667
365   Indiana Finance Authority, Environmental Improvement Revenue Bonds, United States Steel Corporation Project, Refunding Series 2010, 6.000%, 12/01/26   6/20 at 100.00 B 372,899
125   Indiana Finance Authority, Environmental Improvement Revenue Bonds, United States Steel Corporation Project, Refunding Series 2011, 6.000%, 12/01/19   No Opt. Call B 126,602
10,290   Indiana Finance Authority, Hospital Revenue Bonds, Community Health Network Project, Series 2012A, 5.000%, 5/01/42   5/23 at 100.00 A 11,283,294
10,000   Indiana Finance Authority, Hospital Revenue Bonds, Indiana Unversity Health Obligation Group, Fixed Rate Series 2019A, 4.000%, 12/01/49   12/29 at 100.00 AA 10,964,200
5,000   Indiana Finance Authority, Revenue Bonds, Trinity Health Care Group, Refunding Series 2010B, 5.000%, 12/01/37 (Pre-refunded 12/01/20)   12/20 at 100.00 AA- (4) 5,245,900
13,880   Indiana Finance Authority, Wastewater Utility Revenue Bonds, CWA Authority Project, Series 2011B, 5.000%, 10/01/41   10/21 at 100.00 A2 14,817,316
17,970   Indiana Finance Authority, Wastewater Utility Revenue Bonds, CWA Authority Project, Series 2014A, 5.000%, 10/01/44   10/24 at 100.00 A 20,423,264
5,000   Indianapolis Local Public Improvement Bond Bank Bonds, Indiana, Revenue Bonds, PILOT Infrastructure Project, Series 2010F, 5.000%, 1/01/35 (Pre-refunded 1/01/20)  –  AGM Insured   1/20 at 100.00 AA (4) 5,080,650
    Indianapolis Local Public Improvement Bond Bank, Indiana, Series 1999E:        
10,000   0.000%, 2/01/26  –  AMBAC Insured   No Opt. Call AA- 8,951,400
20,000   0.000%, 2/01/28  –  AMBAC Insured   No Opt. Call AA- 16,872,000
110,095   Total Indiana       112,963,450
    Iowa – 3.2% (2.1% of Total Investments)        
10,000   Iowa Finance Authority, Health Facilities Revenue Bonds, UnityPoint Health Project, Series 2013A, 5.250%, 2/15/44   2/23 at 100.00 A1 10,934,900
10,690   Iowa Finance Authority, Iowa, Midwestern Disaster Area Revenue Bonds, Iowa Fertilizer Company Project, Series 2013, 5.250%, 12/01/25   12/23 at 100.00 B- 11,632,323
18,290   Iowa Finance Authority, Iowa, Midwestern Disaster Area Revenue Bonds, Iowa Fertilizer Company Project, Series 2016, 5.875%, 12/01/27, 144A   8/19 at 105.00 B- 19,226,448
21,280   Iowa Finance Authority, Iowa, Midwestern Disaster Area Revenue Bonds, Iowa Fertilizer Company Project, Series 2018B, 5.250%, 12/01/50 (Mandatory Put 12/01/37)   12/27 at 105.00 B+ 23,019,002
5,700   Iowa Finance Authority, Senior Housing Revenue Bonds, PHS Council Bluffs, Inc Project, Series 2018, 5.250%, 8/01/55   8/23 at 102.00 N/R 6,014,412
22
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Iowa (continued)        
    Iowa Tobacco Settlement Authority, Asset Backed Settlement Revenue Bonds, Series 2005C:        
$8,285   5.375%, 6/01/38   9/19 at 100.00 B3 $8,285,414
2,200   5.500%, 6/01/42   9/19 at 100.00 B3 2,200,088
21,420   5.625%, 6/01/46   9/19 at 100.00 B3 21,420,643
8,400   Iowa Tobacco Settlement Authority, Tobacco Asset-Backed Revenue Bonds, Series 2005B, 5.600%, 6/01/34   9/19 at 100.00 B3 8,400,672
106,265   Total Iowa       111,133,902
    Kansas – 0.6% (0.4% of Total Investments)        
    Kansas Development Finance Authority, Revenue Bonds, Sisters of Charity of Leavenworth Health Services Corporation, Series 2010A:        
1,240   5.000%, 1/01/40   1/20 at 100.00 AA- 1,257,558
8,140   5.000%, 1/01/40 (Pre-refunded 1/01/20)   1/20 at 100.00 N/R (4) 8,269,589
1,000   Lenexa, Kansas, Health Care Facilities Revenue Bonds, Lakeview Village Inc, Series 2017A, 5.000%, 5/15/43   5/27 at 100.00 BB+ 1,091,440
    Wyandotte County-Kansas City Unified Government, Kansas, Sales Tax Special Obligation Bonds, Vacation Village Project Area 1 and 2A, Series 2015:        
4,705   5.000%, 9/01/27   9/25 at 100.00 N/R 5,092,269
2,380   5.750%, 9/01/32   9/25 at 100.00 N/R 2,598,722
2,495   6.000%, 9/01/35   9/25 at 100.00 N/R 2,708,622
19,960   Total Kansas       21,018,200
    Kentucky – 2.2% (1.4% of Total Investments)        
4,565   Christian County, Kentucky, Hospital Revenue Bonds, Jennie Stuart Medical Center, Series 2016, 5.500%, 2/01/44   2/26 at 100.00 BB+ 5,094,084
6,065   Kentucky Bond Development Corporation, Tax Increment Revenue Bonds, Summit Lexington Project, Series 2016A, 4.400%, 10/01/24   No Opt. Call N/R 5,986,458
10,000   Kentucky Economic Development Finance Authority, Hospital Revenue Bonds, Owensboro Health, Refunding Series 2017A, 5.000%, 6/01/37   6/27 at 100.00 BB+ 11,344,000
5,240   Kentucky Economic Development Finance Authority, Hospital Revenue Bonds, Owensboro Medical Health System, Series 2010A, 6.000%, 6/01/30 (Pre-refunded 6/01/20)   6/20 at 100.00 BB+ (4) 5,444,884
6,015   Kentucky Economic Development Finance Authority, Hospital Revenue Bonds, Owensboro Medical Health System, Series 2010B, 6.375%, 3/01/40 (Pre-refunded 6/01/20)   6/20 at 100.00 BB+ (4) 6,268,773
    Kentucky Economic Development Finance Authority, Revenue Bonds, Next Generation Kentucky Information Highway Project, Senior Series 2015A:        
4,345   5.000%, 7/01/37   7/25 at 100.00 Baa2 4,879,218
7,370   5.000%, 7/01/40   7/25 at 100.00 Baa2 8,056,294
10,245   5.000%, 1/01/45   7/25 at 100.00 Baa2 11,164,386
    Kentucky Public Transportation Infrastructure Authority, First Tier Toll Revenue Bonds, Downtown Crossing Project, Convertible Capital Appreciation Series 2013C:        
4,360   0.000%, 7/01/43 (6)   7/31 at 100.00 Baa3 4,573,335
8,510   0.000%, 7/01/46 (6)   7/31 at 100.00 Baa3 8,944,095
23
NVG Nuveen AMT-Free Municipal Credit Income Fund (continued)
  Portfolio of Investments July 31, 2019
  (Unaudited)
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Kentucky (continued)        
    Kentucky Public Transportation Infrastructure Authority, First Tier Toll Revenue Bonds, Downtown Crossing Project, Series 2013A:        
$2,390   5.750%, 7/01/49   7/23 at 100.00 Baa3 $2,663,416
480   6.000%, 7/01/53   7/23 at 100.00 Baa3 539,016
69,585   Total Kentucky       74,957,959
    Louisiana – 1.3% (0.8% of Total Investments)        
2,875   Ascension Parish Industrial development Board, Louisiana, Revenue Bonds, Impala Warehousing (US) LLC Project, Series 2013, 6.000%, 7/01/36   7/23 at 100.00 N/R 3,131,278
4,330   Jefferson Parish Hospital District1, Louisiana, Hospital Revenue Bonds, West Jefferson Medical Center, Refunding Series 2011A, 6.000%, 1/01/39 (Pre-refunded 1/01/21)  –  AGM Insured   1/21 at 100.00 A2 (4) 4,619,850
5,000   Lafayette Public Trust Financing Authority, Louisiana, Revenue Bonds, Ragin' Cajun Facilities Inc Housing & Parking Project, Series 2010, 5.500%, 10/01/41 (Pre-refunded 10/01/20)  –  AGM Insured   10/20 at 100.00 AA (4) 5,253,050
    Louisiana Public Facilities Authority, Hospital Revenue Bonds, Franciscan Missionaries of Our Lady Health System, Series 1998A:        
135   5.750%, 7/01/25  –  AGM Insured (ETM) (UB)   No Opt. Call A2 (4) 169,088
9,865   5.750%, 7/01/25  –  AGM Insured (UB)   No Opt. Call A2 11,309,729
11,000   Louisiana Public Facilities Authority, Revenue Bonds, Loyola University Project, Refunding Series 2017, 5.250%, 10/01/46 (6)   10/33 at 100.00 BBB 10,628,090
    Louisiana Public Facilities Authority, Revenue Bonds, Ochsner Clinic Foundation Project, Series 2015:        
1,000   4.250%, 5/15/40   5/25 at 100.00 A3 1,067,130
6,970   5.000%, 5/15/47   5/25 at 100.00 A3 7,778,938
1,000   New Orleans, Louisiana, Sewerage Service Revenue Bonds, Refunding Series 2014, 4.250%, 6/01/34   6/24 at 100.00 A- 1,076,330
42,175   Total Louisiana       45,033,483
    Maine – 1.1% (0.7% of Total Investments)        
7,530   Maine Health and Higher Educational Facilities Authority Revenue Bonds, Eastern Maine Medical Center Obligated Group Issue, Series 2013, 5.000%, 7/01/43   7/23 at 100.00 Ba1 8,072,687
    Maine Health and Higher Educational Facilities Authority Revenue Bonds, Eastern Maine Medical Center Obligated Group Issue, Series 2016A:        
5,450   4.000%, 7/01/41   7/26 at 100.00 Ba1 5,640,750
10,215   4.000%, 7/01/46   7/26 at 100.00 Ba1 10,533,402
1,050   Maine Health and Higher Educational Facilities Authority, Revenue Bonds, Maine General Medical Center, Series 2011, 6.750%, 7/01/41   7/21 at 100.00 Ba3 1,132,719
10,000   Maine Health and Higher Educational Facilities Authority, Revenue Bonds, Mainehealth Issue, Series 2015, 5.000%, 7/01/39   7/24 at 100.00 A+ 11,180,000
34,245   Total Maine       36,559,558
    Maryland – 1.3% (0.8% of Total Investments)        
1,000   Howard County, Maryland, Special Obligation Bonds, Downtown Columbia Project, Series 2017A, 4.375%, 2/15/39, 144A   2/26 at 100.00 N/R 1,050,120
24
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Maryland (continued)        
$2,500   Maryland Health and Higher Educational Facilities Authority, Revenue Bonds, Adventist Healthcare, Series 2011A, 6.000%, 1/01/26   1/22 at 100.00 Baa3 $2,759,075
13,315   Maryland Health and Higher Educational Facilities Authority, Revenue Bonds, Adventist Healthcare, Series 2016A, 5.500%, 1/01/46   1/27 at 100.00 Baa3 15,495,198
10,000   Maryland Health and Higher Educational Facilities Authority, Revenue Bonds, LifeBridge Health System, Series 2015, 5.000%, 7/01/47   7/25 at 100.00 A+ 11,206,500
1,500   Maryland Health and Higher Educational Facilities Authority, Revenue Bonds, Peninsula Regional Medical Center Issue, Refunding Series 2015, 5.000%, 7/01/45   7/24 at 100.00 A3 1,683,540
3,010   Maryland Health and Higher Educational Facilities Authority, Revenue Bonds, University of Maryland Medical System Issue, Series 2013A, 5.000%, 7/01/43   7/22 at 100.00 A- 3,261,485
    Prince George's County Revenue Authority, Maryland, Special Obligation Bonds, Suitland-Naylor Road Project, Series 2016:        
2,000   4.750%, 7/01/36, 144A   1/26 at 100.00 N/R 2,108,700
2,300   5.000%, 7/01/46, 144A   1/26 at 100.00 N/R 2,434,550
    Rockville Mayor and Council, Maryland, Economic Development Revenue Bonds, Series 2017B:        
1,335   4.250%, 11/01/37   11/24 at 103.00 BB 1,411,028
1,250   4.500%, 11/01/43   11/24 at 103.00 BB 1,322,275
1,950   5.000%, 11/01/47   11/24 at 103.00 BB 2,140,730
40,160   Total Maryland       44,873,201
    Massachusetts – 2.7% (1.7% of Total Investments)        
9,500   Massachusetts Department of Transportation, Metropolitan Highway System Revenue Bonds, Commonwealth Contract Assistance Secured, Series 2010B, 5.000%, 1/01/35   1/20 at 100.00 AA 9,644,495
3,125   Massachusetts Department of Transportation, Metropolitan Highway System Revenue Bonds, Refunding Senior Lien Series 2010B, 5.000%, 1/01/37   1/20 at 100.00 A2 3,171,875
    Massachusetts Development Finance Agency Revenue Bonds, Lawrence General Hospital Issue, Series 2014A:        
2,245   5.250%, 7/01/34   7/24 at 100.00 BB 2,489,930
6,195   5.500%, 7/01/44   7/24 at 100.00 BB 6,842,130
    Massachusetts Development Finance Agency Revenue Refunding Bonds, NewBridge on the Charles, Inc Issue, Series 2017:        
8,200   4.125%, 10/01/42, 144A   10/22 at 105.00 BB+ 8,590,566
2,810   5.000%, 10/01/47, 144A   10/22 at 105.00 BB+ 3,091,618
10,000   Massachusetts Development Finance Agency, Revenue Bonds, CareGroup Issue, Series 2018J-2, 5.000%, 7/01/53   7/28 at 100.00 A3 11,734,900
    Massachusetts Development Finance Agency, Revenue Bonds, Emerson College, Series 2015:        
4,020   4.500%, 1/01/45   1/25 at 100.00 Baa2 4,281,461
2,950   5.000%, 1/01/45   1/25 at 100.00 Baa2 3,261,018
4,035   Massachusetts Development Finance Agency, Revenue Bonds, Emmanuel College, Series 2016A, 4.000%, 10/01/46   10/26 at 100.00 Baa2 4,207,859
6,000   Massachusetts Development Finance Authority, Revenue Bonds, WGBH Educational Foundation, Series 2002A, 5.750%, 1/01/42  –  AMBAC Insured   No Opt. Call AA- 8,750,700
25
NVG Nuveen AMT-Free Municipal Credit Income Fund (continued)
  Portfolio of Investments July 31, 2019
  (Unaudited)
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Massachusetts (continued)        
$5,330   Massachusetts Health and Educational Facilities Authority, Revenue Bonds, Harvard University, Tender Option Bond Trust 2016-XL0017, 10.874%, 12/15/34 (Pre-refunded 12/15/19), 144A (IF) (5)   12/19 at 100.00 AAA (4) $5,563,294
1,000   Massachusetts Health and Educational Facilities Authority, Revenue Bonds, Massachusetts Eye and Ear Infirmary, Series 2010C, 5.375%, 7/01/35 (Pre-refunded 7/01/20)   7/20 at 100.00 N/R (4) 1,037,730
7,405   Massachusetts Health and Educational Facilities Authority, Revenue Bonds, Massachusetts Institute of Technology, Series 2002K, 5.500%, 7/01/32 (UB) (5)   No Opt. Call AAA 10,480,963
2,800   Massachusetts Housing Finance Agency, Housing Bonds, Series 2014D, 3.875%, 12/01/39   6/24 at 100.00 AA- 2,915,500
4,560   Massachusetts School Building Authority, Dedicated Sales Tax Revenue Bonds, Senior Series 2013A, 5.000%, 5/15/43   5/23 at 100.00 Aa2 5,129,681
425   Massachusetts Water Pollution Abatement Trust, Revenue Bonds, MWRA Loan Program, Subordinate Series 1999A, 5.750%, 8/01/29   9/19 at 100.00 AAA 426,636
1,245   Springfield Water and Sewer Commission, Massachusetts, General Revenue Bonds, Refunding Series 2010B, 5.000%, 11/15/30 (Pre-refunded 11/15/20)  –  AGC Insured   11/20 at 100.00 A3 (4) 1,307,474
81,845   Total Massachusetts       92,927,830
    Michigan – 2.8% (1.8% of Total Investments)        
5,490   Detroit City School District, Wayne County, Michigan, Unlimited Tax School Building and Site Improvement Bonds, Series 2001A, 6.000%, 5/01/29  –  AGM Insured (UB)   No Opt. Call AA 6,913,996
3,665   Detroit Downtown Development Authority, Michigan, Tax Increment Revenue Bonds, Catalyst Development Project, Series 2018A, 5.000%, 7/01/48  –  AGM Insured   7/24 at 100.00 AA 4,035,165
2,985   Detroit Water and Sewerage Department, Michigan, Sewage Disposal System Revenue Bonds, Refunding Senior Lien Series 2012A, 5.250%, 7/01/39   7/22 at 100.00 A2 3,246,993
    Kalamazoo Hospital Finance Authority, Michigan, Hospital Revenue Refunding Bonds, Bronson Methodist Hospital, Remarketed Series 2006:        
895   5.250%, 5/15/36  –  AGM Insured   5/20 at 100.00 A2 917,903
1,105   5.250%, 5/15/36 (Pre-refunded 5/15/20)  –  AGM Insured   5/20 at 100.00 A2 (4) 1,139,973
    Michigan Finance Authority, Hospital Revenue Bonds, Sparrow Obligated Group, Refunding Series 2015:        
4,495   4.000%, 11/15/35   5/25 at 100.00 A+ 4,820,483
2,550   4.000%, 11/15/36   5/25 at 100.00 A+ 2,730,846
10,000   Michigan Finance Authority, Michigan, Revenue Bonds, Trinity Health Credit Group, Refunding Series 2016MI, 5.000%, 12/01/45 (UB) (5)   6/26 at 100.00 AA- 11,542,600
    Michigan Finance Authority, Revenue Bonds, Trinity Health Credit Group, Refunding Series 2011MI:        
10   5.000%, 12/01/39 (Pre-refunded 12/01/21)   12/21 at 100.00 N/R (4) 10,878
3,240   5.000%, 12/01/39   12/21 at 100.00 AA- 3,486,078
4,000   Michigan Public Power Agency, AFEC Project Revenue Bonds, Series 2012A, 5.000%, 1/01/43   1/22 at 100.00 BBB 4,214,360
    Michigan State Building Authority, Revenue Bonds, Facilities Program, Refunding Series 2011-II-A:        
2,750   5.375%, 10/15/36   10/21 at 100.00 AA- 2,981,798
8,260   5.375%, 10/15/41   10/21 at 100.00 AA- 8,908,988
26
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Michigan (continued)        
    Michigan State Hospital Finance Authority, Hospital Revenue Bonds, Henry Ford Health System, Refunding Series 2009:        
$5,500   5.625%, 11/15/29 (Pre-refunded 11/15/19)   11/19 at 100.00 N/R (4) $5,570,290
10,585   5.750%, 11/15/39 (Pre-refunded 11/15/19)   11/19 at 100.00 N/R (4) 10,724,087
13,855   Michigan State Hospital Finance Authority, Revenue Bonds, Trinity Health Care Group, Series 2009C, 5.000%, 12/01/48   6/22 at 100.00 AA- 14,988,616
3,050   Michigan Tobacco Settlement Finance Authority, Tobacco Settlement Asset-Backed Revenue Bonds, Series 2008A, 6.875%, 6/01/42   8/19 at 100.00 B2 3,082,239
    Wayne County Airport Authority, Michigan, Revenue Bonds, Detroit Metropolitan Wayne County Airport, Series 2015D:        
3,550   5.000%, 12/01/40   12/25 at 100.00 A 4,095,102
3,600   5.000%, 12/01/45   12/25 at 100.00 A 4,140,540
89,585   Total Michigan       97,550,935
    Minnesota – 1.7% (1.1% of Total Investments)        
    Baytown Township, Minnesota Charter School Lease Revenue Bonds, Saint Croix Preparatory Academy, Refunding Series 2016A:        
155   4.000%, 8/01/36   8/26 at 100.00 BB+ 157,844
440   4.000%, 8/01/41   8/26 at 100.00 BB+ 442,671
2,000   Brooklyn Park, Minnesota, Charter School Lease Revenue Bonds, Prairie Seeds Academy Project, Refunding Series 2015A, 5.000%, 3/01/34   3/25 at 100.00 BB- 2,051,760
1,720   Deephaven, Minnesota, Charter School Lease Revenue Bonds, Eagle Ridge Academy Project, Series 2015A, 5.500%, 7/01/50   7/25 at 100.00 BB+ 1,867,645
    Duluth Economic Development Authority, Minnesota, Health Care Facilities Revenue Bonds, Essentia Health Obligated Group, Series 2018A:        
9,560   4.250%, 2/15/43   2/28 at 100.00 A- 10,518,868
27,325   4.250%, 2/15/48   2/28 at 100.00 A- 29,920,329
1,410   Minneapolis, Minnesota, Charter School Lease Revenue Bonds, Hiawatha Academies Project, Series 2016A, 5.000%, 7/01/47   7/24 at 102.00 N/R 1,496,137
1,000   Minneapolis-Saint Paul Housing and Redevelopment Authority, Minnesota, Health Care Revenue Bonds, Children's Health Care, Series 2004A-1 Remarketed, 4.625%, 8/15/29  –  AGM Insured   8/20 at 100.00 A2 1,029,380
    Saint Cloud, Minnesota, Charter School Lease Revenue Bonds, Stride Academy Project, Series 2016A:        
405   5.000%, 4/01/36   4/26 at 100.00 N/R 248,540
605   5.000%, 4/01/46   4/26 at 100.00 N/R 371,506
2,500   Saint Paul Housing and Redevelopment Authority, Minnesota, Health Care Facility Revenue Bonds, HealthPartners Obligated Group, Refunding Series 2015A, 4.000%, 7/01/35   7/25 at 100.00 A2 2,691,475
200   Saint Paul Housing and Redevelopment Authority, Minnesota, Multifamily Housing Revenue Bonds, 2700 University at Westgate Station, Series 2015B, 4.250%, 4/01/25   4/23 at 100.00 N/R 205,242
27
NVG Nuveen AMT-Free Municipal Credit Income Fund (continued)
  Portfolio of Investments July 31, 2019
  (Unaudited)
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Minnesota (continued)        
    St Paul Housing and Redevelopment Authority, Minnesota, Hospital Revenue Bonds, HealthEast Inc, Series 2015A:        
$900   5.250%, 11/15/35 (Pre-refunded 11/15/20)   11/20 at 100.00 N/R (4) $946,836
2,785   5.000%, 11/15/40 (Pre-refunded 11/15/25)   11/25 at 100.00 N/R (4) 3,388,120
3,190   5.000%, 11/15/44 (Pre-refunded 11/15/25)   11/25 at 100.00 N/R (4) 3,880,826
54,195   Total Minnesota       59,217,179
    Mississippi – 0.2% (0.1% of Total Investments)        
5,445   Mississippi Development Bank, Special Obligation Bonds, Gulfport Water and Sewer System Project, Series 2005, 5.250%, 7/01/24  –  AGM Insured   No Opt. Call A2 6,203,434
    Missouri – 2.4% (1.5% of Total Investments)        
2,960   Chesterfield Valley Transportation Development District, Missouri, Transportation Sales Tax Revenue Bonds, Series 2015, 3.625%, 5/15/31   5/23 at 100.00 A- 3,056,644
    Kansas City Industrial Development Authority, Missouri, Sales Tax Revenue Bonds, Ward Parkway Center Community Improvement District, Senior Refunding & Improvement Series 2016:        
400   5.000%, 4/01/36, 144A   4/26 at 100.00 N/R 414,644
1,520   5.000%, 4/01/46, 144A   4/26 at 100.00 N/R 1,554,458
15,000   Kansas City Municipal Assistance Corporation, Missouri, Leasehold Revenue Bonds, Series 2004B-1, 0.000%, 4/15/28  –  AMBAC Insured   No Opt. Call A1 12,269,250
4,345   Kirkwood Industrial Development Authority, Missouri, Retirement Community Revenue Bonds, Aberdeen Heights Project, Refunding Series 2017A, 5.250%, 5/15/50   5/27 at 100.00 BB 4,799,835
    Liberty, Missouri, Special Obligation Tax Increment and Special Districts Bonds, Liberty Commons Project, Series 2015A:        
1,575   5.750%, 6/01/35, 144A   6/25 at 100.00 N/R 1,590,372
1,055   6.000%, 6/01/46, 144A   6/25 at 100.00 N/R 1,070,941
2,460   Missouri Health and Educational Facilities Authority, Educational Facilities Revenue Bonds, Saint Louis College of Pharmacy, Series 2013, 5.500%, 5/01/43   5/23 at 100.00 BBB 2,661,007
    Missouri Health and Educational Facilities Authority, Educational Facilities Revenue Bonds, Saint Louis College of Pharmacy, Series 2015B:        
1,410   5.000%, 5/01/40   11/23 at 100.00 BBB 1,504,414
2,000   5.000%, 5/01/45   11/23 at 100.00 BBB 2,128,200
7,040   Missouri Health and Educational Facilities Authority, Health Facilities Revenue Bonds, CoxHealth, Series 2013A, 5.000%, 11/15/48   11/23 at 100.00 A2 7,724,218
2,250   Missouri Health and Educational Facilities Authority, Health Facilities Revenue Bonds, Heartland Regional Medical Center, Series 2012, 5.000%, 2/15/43   2/22 at 100.00 A1 2,409,367
    Missouri Health and Educational Facilities Authority, Health Facilities Revenue Bonds, Mosaic Health System, Series 2019A:        
6,330   4.000%, 2/15/44   2/29 at 100.00 A1 6,950,023
14,545   4.000%, 2/15/49   2/29 at 100.00 A1 15,870,777
1,010   Plaza at Noah's Ark Community Improvement District, Saint Charles, Missouri, Tax Increment and Improvement District Revenue Bonds, Series 2015, 5.000%, 5/01/30   5/21 at 100.00 N/R 1,023,069
405   Saint Louis County Industrial Development Authority, Missouri, Revenue Bonds, Friendship Village of Sunset Hills, Series 2013A, 5.875%, 9/01/43   9/23 at 100.00 BB+ 448,246
28
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Missouri (continued)        
    Saint Louis County Industrial Development Authority, Missouri, Revenue Bonds, Saint Andrew's Resources for Seniors, Series 2015A:        
$1,550   5.000%, 12/01/35   12/25 at 100.00 N/R $1,655,509
455   5.125%, 12/01/45   12/25 at 100.00 N/R 485,449
4,125   Saint Louis, Missouri, Airport Revenue Bonds, Lambert-St Louis International Airport, Series 2005, 5.500%, 7/01/29  –  NPFG Insured   No Opt. Call A- 5,543,422
15,350   Springfield Public Building Corporation, Missouri, Lease Revenue Bonds, Jordan Valley Park Projects, Series 2000A, 0.000%, 6/01/30  –  AMBAC Insured   No Opt. Call N/R 10,424,952
85,785   Total Missouri       83,584,797
    Montana – 0.1% (0.1% of Total Investments)        
    Kalispell, Montana, Housing and Healthcare Facilities Revenue Bonds, Immanuel Lutheran Corporation, Series 2017A:        
1,175   5.250%, 5/15/37   5/25 at 102.00 N/R 1,261,856
375   5.250%, 5/15/47   5/25 at 102.00 N/R 400,894
3,000   Montana Facility Finance Authority, Hospital Revenue Bonds, Benefis Health System Obligated Group, Series 2011A, 5.750%, 1/01/31 (Pre-refunded 1/01/21)  –  AGM Insured   1/21 at 100.00 A2 (4) 3,192,510
4,550   Total Montana       4,855,260
    Nebraska – 1.2% (0.8% of Total Investments)        
10,665   Central Plains Energy Project, Nebraska, Gas Project 3 Revenue Bonds, Refunding Crossover Series 2017A, 5.000%, 9/01/42   No Opt. Call BBB+ 14,255,052
4,435   Central Plains Energy Project, Nebraska, Gas Project 3 Revenue Bonds, Series 2012, 5.000%, 9/01/32   9/22 at 100.00 BBB+ 4,813,882
1,330   Douglas County Hospital Authority 2, Nebraska, Health Facilities Revenue Bonds, Nebraska Methodist Health System, Refunding Series 2015, 5.000%, 11/01/45   11/25 at 100.00 A- 1,490,531
    Douglas County Hospital Authority 3, Nebraska, Health Facilities Revenue Bonds, Nebraska Methodist Health System, Refunding Series 2015:        
2,090   4.125%, 11/01/36   11/25 at 100.00 A- 2,229,528
2,325   5.000%, 11/01/48   11/25 at 100.00 A- 2,590,445
4,010   Lincoln County Hospital Authority 1, Nebraska, Hospital Revenue and Refunding Bonds, Great Plains Regional Medical Center Project, Series 2012, 5.000%, 11/01/42   11/21 at 100.00 A- 4,240,054
3,980   Nebraska Investment Finance Authority, Single Family Housing Revenue Bonds, Series 2018C, 3.750%, 9/01/38   9/27 at 100.00 AA+ 4,228,989
6,800   Scotts Bluff County Hospital Authority 1, Nebraska, Hospital Revenue Bonds, Regional West Medical Center Project, Refunding & Improvement Series 2016A, 5.250%, 2/01/37   2/27 at 100.00 BBB+ 7,564,864
35,635   Total Nebraska       41,413,345
    Nevada – 2.1% (1.3% of Total Investments)        
    Clark County, Nevada, Passenger Facility Charge Revenue Bonds, Las Vegas-McCarran International Airport, Series 2010A:        
24,020   5.250%, 7/01/39  –  AGM Insured   1/20 at 100.00 Aa3 24,389,908
14,515   5.250%, 7/01/42   1/20 at 100.00 A+ 14,733,015
29
NVG Nuveen AMT-Free Municipal Credit Income Fund (continued)
  Portfolio of Investments July 31, 2019
  (Unaudited)
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Nevada (continued)        
$410   Director of the State of Nevada Department of Business and Industry, Charter School Lease Revenue Bonds, Somerset Academy, Series 2018A, 5.000%, 12/15/38, 144A   12/25 at 100.00 BB $438,782
23,605   Las Vegas Convention and Visitors Authority, Nevada, Convention Center Expansion Revenue Bonds, Series 2018B, 4.000%, 7/01/49   7/28 at 100.00 A+ 25,463,658
1,000   Las Vegas, Nevada, Sales Tax Increment Revenue Bonds, Symphony Park Tourism Improvement District, Series 2016, 4.375%, 6/15/35, 144A   6/21 at 100.00 N/R 965,840
500   Nevada State Director of the Department of Business and Industry, Charter School Revenue Bonds, Doral Academy of Nevada, Series 2017A, 5.000%, 7/15/37, 144A   7/25 at 100.00 BB+ 537,475
4,000   Reno, Nevada, Subordinate Lien Sales Tax Revenue Refunding Bonds, ReTrac-Reno Transportation Rail Access Corridor Project, Series 2018A, 4.000%, 6/01/43   12/28 at 100.00 A3 4,360,480
4,500   Reno, Nevada, Subordinate Lien Sales Tax Revenue Refunding Capital Appreciation Bonds, ReTrac-Reno Transportation Rail Access Corridor Project, Series 2018C, 0.000%, 7/01/58, 144A   7/38 at 31.26 N/R 615,195
72,550   Total Nevada       71,504,353
    New Hampshire – 0.3% (0.2% of Total Investments)        
5,000   National Finance Authority, New Hampshire, Resource Recovery Revenue Bonds, Covanta Project, Refunding Series 2018B, 4.625%, 11/01/42, 144A   7/23 at 100.00 B 5,174,300
5,000   New Hampshire Business Finance Authority, Revenue Bonds, Elliot Hospital Obligated Group Issue, Series 2009A, 6.125%, 10/01/39 (Pre-refunded 10/01/19)   10/19 at 100.00 Baa1 (4) 5,040,650
500   New Hampshire Health and Education Facilities Authority, Revenue Bonds, Kendal at Hanover, Series 2016, 5.000%, 10/01/40   10/26 at 100.00 BBB+ 550,500
10,500   Total New Hampshire       10,765,450
    New Jersey – 6.0% (3.9% of Total Investments)        
    New Jersey Economic Development Authority, School Facilities Construction Bonds, Refunding Series 2016BBB:        
34,310   5.500%, 6/15/29   12/26 at 100.00 BBB+ 41,222,779
2,110   5.500%, 6/15/30   12/26 at 100.00 BBB+ 2,517,631
    New Jersey Economic Development Authority, School Facilities Construction Bonds, Series 2005N-1:        
6,835   5.500%, 9/01/24  –  AMBAC Insured   No Opt. Call BBB+ 8,040,967
5,000   5.500%, 9/01/28  –  NPFG Insured   No Opt. Call BBB+ 6,278,850
11,990   New Jersey Economic Development Authority, School Facilities Construction Bonds, Series 2015WW, 5.250%, 6/15/40   6/25 at 100.00 BBB+ 13,369,689
600   New Jersey Health Care Facilities Financing Authority, New Jersey, Revenue Bonds, Saint Peters University Hospital, Refunding Series 2011, 6.000%, 7/01/26   7/21 at 100.00 BB+ 640,662
1,500   New Jersey Health Care Facilities Financing Authority, New Jersey, Revenue Bonds, Saint Peters University Hospital, Series 2007, 5.750%, 7/01/37   9/19 at 100.00 BB+ 1,504,890
3,310   New Jersey Health Care Facilities Financing Authority, Revenue Bonds, Barnabas Health, Refunding Series 2014A, 5.000%, 7/01/44   7/24 at 100.00 A- 3,766,515
2,015   New Jersey Transportation Trust Fund Authority, Transportation System Bonds, Capital Appreciation Series 2010A, 0.000%, 12/15/26   No Opt. Call BBB+ 1,690,101
2,150   New Jersey Transportation Trust Fund Authority, Transportation System Bonds, Refunding Series 2006A, 5.250%, 12/15/20   No Opt. Call BBB+ 2,259,435
30
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    New Jersey (continued)        
$20,000   New Jersey Transportation Trust Fund Authority, Transportation System Bonds, Refunding Series 2006C, 0.000%, 12/15/33  –  AGM Insured   No Opt. Call A- $13,123,600
9,940   New Jersey Transportation Trust Fund Authority, Transportation System Bonds, Series 2011B, 5.000%, 6/15/42   6/21 at 100.00 BBB+ 10,387,300
20,040   New Jersey Transportation Trust Fund Authority, Transportation System Bonds, Series 2014AA, 5.000%, 6/15/44   6/24 at 100.00 BBB+ 21,790,093
    New Jersey Transportation Trust Fund Authority, Transportation System Bonds, Series 2015AA:        
13,680   4.750%, 6/15/38   6/25 at 100.00 BBB+ 14,845,126
5,245   5.250%, 6/15/41   6/25 at 100.00 BBB+ 5,855,938
8,230   5.000%, 6/15/45   6/25 at 100.00 BBB+ 9,045,346
33,200   New Jersey Turnpike Authority, Revenue Bonds, Refunding Series 2005D-1, 5.250%, 1/01/26  –  AGM Insured   No Opt. Call A2 40,869,200
200   New Jersey Turnpike Authority, Revenue Bonds, Tender Option Bond Trust 2016-XF1057, 13.399%, 1/01/43 (Pre-refunded 7/01/22), 144A (IF) (5)   7/22 at 100.00 A2 (4) 283,028
1,135   Rutgers State University, New Jersey, Revenue Bonds, Refunding Series 2013L, 5.000%, 5/01/43   5/23 at 100.00 A+ 1,270,133
3,000   Tobacco Settlement Financing Corporation, New Jersey, Tobacco Settlement Asset-Backed Bonds, Series 2018A, 5.250%, 6/01/46   6/28 at 100.00 BBB+ 3,424,950
3,410   Tobacco Settlement Financing Corporation, New Jersey, Tobacco Settlement Asset-Backed Bonds, Series 2018B, 5.000%, 6/01/46   6/28 at 100.00 BBB 3,694,769
1,330   Washington Township Board of Education, Mercer County, New Jersey, General Obligation Bonds, Series 2005, 5.250%, 1/01/26  –  AGM Insured   No Opt. Call A2 1,616,150
189,230   Total New Jersey       207,497,152
    New York – 5.0% (3.2% of Total Investments)        
12,060   Build NYC Resource Corporation, New York, Revenue Bonds, Albert Einstein College of Medicine, Inc, Series 2015, 5.500%, 9/01/45, 144A   9/25 at 100.00 N/R 13,461,372
2,250   Dormitory Authority of the State of New York, Insured Revenue Bonds, Mount Sinai School of Medicine, Series 1994A, 5.150%, 7/01/24  –  NPFG Insured   No Opt. Call Baa2 2,563,155
9,700   Dormitory Authority of the State of New York, Revenue Bonds, Columbia University, Series 2017A, 5.000%, 10/01/47 (UB) (5)   No Opt. Call AAA 14,336,018
4,070   Dormitory Authority of the State of New York, Revenue Bonds, Icahn School of Medicine at Mount Sinai, Refunding Series 2015A, 5.000%, 7/01/45   7/25 at 100.00 A- 4,643,219
7,225   Dormitory Authority of the State of New York, Revenue Bonds, Non State Supported Debt, Cornell University, Series 2010A, 5.000%, 7/01/35   7/20 at 100.00 AA 7,479,103
    Dormitory Authority of the State of New York, Revenue Bonds, Orange Regional Medical Center Obligated Group, Series 2015:        
2,700   5.000%, 12/01/40, 144A   6/25 at 100.00 BBB- 3,021,570
5,600   5.000%, 12/01/45, 144A   6/25 at 100.00 BBB- 6,237,112
2,695   Hempstead Town Local Development Corporation, New York, Education Revenue Bonds, The Academy Charter School Project, Series 2017A, 6.240%, 2/01/47   2/27 at 100.00 N/R 2,945,797
2,965   Hempstead Town Local Development Corporation, New York, Education Revenue Bonds, The Academy Charter School Project, Series 2018A, 6.760%, 2/01/48   2/28 at 100.00 N/R 3,364,208
31
NVG Nuveen AMT-Free Municipal Credit Income Fund (continued)
  Portfolio of Investments July 31, 2019
  (Unaudited)
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    New York (continued)        
    Hudson Yards Infrastructure Corporation, New York, Revenue Bonds, Senior Fiscal 2012 Series 2011A:        
$105   5.250%, 2/15/47 (Pre-refunded 2/15/21)   2/21 at 100.00 Aa2 (4) $111,852
2,295   5.250%, 2/15/47   2/21 at 100.00 AA- 2,422,028
325   5.750%, 2/15/47   2/21 at 100.00 AA- 346,593
525   5.750%, 2/15/47 (Pre-refunded 2/15/21)   2/21 at 100.00 Aa2 (4) 563,252
6,075   Long Island Power Authority, New York, Electric System Revenue Bonds, Series 2011A, 5.000%, 5/01/36 (Pre-refunded 5/01/21)  –  AGM Insured   5/21 at 100.00 A- (4) 6,499,156
10,000   Long Island Power Authority, New York, Electric System Revenue Bonds, Series 2012A, 5.000%, 9/01/42   9/22 at 100.00 A- 10,906,300
4,315   Monroe County Industrial Development Corporation, New York, FHA Insured Mortgage Revenue Bonds, Unity Hospital of Rochestor Project, Series 2010, 5.500%, 8/15/40   2/21 at 100.00 AA 4,588,053
1,000   Nassau County Local Economic Assistance Corporation, New York, Revenue Bonds, Catholic Health Services of Long Island Obligated Group Project, Series 2014, 5.000%, 7/01/31   7/24 at 100.00 Baa1 1,122,190
2,130   Nassau County Tobacco Settlement Corporation, New York, Tobacco Settlement Asset-Backed Bonds, Series 2006A-3, 5.000%, 6/01/35   9/19 at 100.00 B- 2,062,543
4,050   New York City Industrial Development Agency, New York, Revenue Bonds, Yankee Stadium Project PILOT, Series 2009A, 7.000%, 3/01/49  –  AGC Insured   9/19 at 100.00 A3 4,071,911
11,570   New York City Municipal Water Finance Authority, New York, Water and Sewer System Second General Resolution Revenue Bonds, Fiscal 2016 Series BB-1, 5.000%, 6/15/46 (UB) (5)   6/25 at 100.00 AA+ 13,401,300
5   New York City, New York, General Obligation Bonds, Fiscal Series 2005M, 5.000%, 4/01/26  –  FGIC Insured   9/19 at 100.00 AA 5,016
28,615   New York Liberty Development Corporation, New York, Liberty Revenue Bonds, 3 World Trade Center Project, Class 1 Series 2014, 5.000%, 11/15/44, 144A   11/24 at 100.00 N/R 31,450,746
6,500   New York State Mortgage Agency, Homeowner Mortgage Revenue Bonds, Series 211, 3.750%, 10/01/43   4/27 at 100.00 Aa1 6,823,895
5,655   Onondaga Civic Development Corporation, New York, Revenue Bonds, Saint Joseph's Hospital Health Center Project, Series 2012, 5.000%, 7/01/42 (Pre-refunded 7/01/22)   7/22 at 100.00 N/R (4) 6,290,848
    Port Authority of New York and New Jersey, Special Project Bonds, JFK International Air Terminal LLC Project, Eigth Series 2010:        
8,550   5.500%, 12/01/31   12/20 at 100.00 BBB+ 9,013,153
3,155   6.000%, 12/01/36   12/20 at 100.00 BBB+ 3,339,946
    TSASC Inc, New York, Tobacco Asset-Backed Bonds, Series 2006:        
5,000   5.000%, 6/01/45   6/27 at 100.00 B+ 4,838,750
5,360   5.000%, 6/01/48   6/27 at 100.00 N/R 5,172,454
154,495   Total New York       171,081,540
    North Carolina – 0.7% (0.4% of Total Investments)        
10,000   North Carolina Medical Care Commission, Health Care Facilities Revenue Bonds, Duke University Health System, Series 2012A, 5.000%, 6/01/42   6/22 at 100.00 AA 10,928,100
4,715   North Carolina Medical Care Commission, Health Care Facilities Revenue Bonds, Vidant Health, Refunding Series 2012A, 5.000%, 6/01/36   6/22 at 100.00 A+ 5,104,883
32
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    North Carolina (continued)        
$2,150   North Carolina Medical Care Commission, Health Care Facilities Revenue Bonds, WakeMed, Refunding Series 2012A, 5.000%, 10/01/38   10/22 at 100.00 A2 $2,347,004
2,150   North Carolina Medical Care Commission, Retirement Facilities First Mortgage Revenue Bonds, Aldersgate United Retirement Community Inc, Refunding Series 2017A, 5.000%, 7/01/47   7/27 at 100.00 N/R 2,291,535
1,690   North Carolina Turnpike Authority, Monroe Expressway Toll Revenue Bonds, Series 2017A, 5.000%, 7/01/54   7/26 at 100.00 Baa3 1,906,557
20,705   Total North Carolina       22,578,079
    North Dakota – 2.2% (1.4% of Total Investments)        
9,950   Cass County, North Dakota, Health Care Facilities Revenue Bonds, Essential Health Obligated Group, Series 2018B, 4.250%, 2/15/48   2/28 at 100.00 A- 10,677,644
    Grand Forks, North Dakota, Health Care System Revenue Bonds, Altru Health System Obligated Group, Series 2012:        
7,000   5.000%, 12/01/29   12/21 at 100.00 Baa2 7,473,760
3,000   5.000%, 12/01/32   12/21 at 100.00 Baa2 3,188,040
2,245   5.000%, 12/01/35   12/21 at 100.00 Baa2 2,377,859
4,525   Grand Forks, North Dakota, Health Care System Revenue Bonds, Altru Health System Obligated Group, Series 2017A, 5.000%, 12/01/42   12/27 at 100.00 Baa2 5,123,612
1,000   Grand Forks, North Dakota, Senior Housing & Nursing Facilities Revenue Bonds, Valley Homes and Services Obligated Group, Series 2017, 5.000%, 12/01/36   12/26 at 100.00 N/R 1,060,330
    Ward County Health Care, North Dakota, Revenue Bonds, Trinity Obligated Group, Series 2017C:        
10,000   5.000%, 6/01/38   6/28 at 100.00 BBB- 11,393,600
28,000   5.000%, 6/01/53   6/28 at 100.00 BBB- 31,239,320
1,085   Williston Parks and Recreation District, North Dakota, Sales Tax & Gross Revenue Bonds, Series 2012A, 5.000%, 3/01/21   No Opt. Call B 1,110,291
2,535   Williston, North Dakota, Multifamily Housing Revenue Bonds, Eagle Crest Apartments LLC Project, Series 2013, 7.750%, 9/01/38 (7)   9/23 at 100.00 N/R 1,166,100
69,340   Total North Dakota       74,810,556
    Ohio – 10.6% (6.8% of Total Investments)        
4,185   Akron, Bath and Copley Joint Township Hospital District, Ohio, Hospital Revenue Bonds, Children's Hospital Medical Center, Improvement & Refunding Series 2012, 5.000%, 11/15/42   5/22 at 100.00 A1 4,493,979
    Allen County, Ohio, Hospital Facilities Revenue Bonds, Catholic Health Partners, Refunding and Improvement Series 2012A:        
2,740   4.000%, 5/01/33   5/22 at 100.00 A2 2,850,449
1,930   5.000%, 5/01/33   5/22 at 100.00 A2 2,100,226
3,405   5.000%, 5/01/42   5/22 at 100.00 A2 3,670,045
100,000   Buckeye Tobacco Settlement Financing Authority, Ohio, Tobacco Settlement Asset-Backed Revenue Bonds, Second Subordinate Capital Appreciation Turbo Term Series 2007C, 0.000%, 6/01/52   8/19 at 8.94 N/R 3,378,000
33
NVG Nuveen AMT-Free Municipal Credit Income Fund (continued)
  Portfolio of Investments July 31, 2019
  (Unaudited)
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Ohio (continued)        
    Buckeye Tobacco Settlement Financing Authority, Ohio, Tobacco Settlement Asset-Backed Revenue Bonds, Senior Lien, Series 2007A-2:        
$36,565   5.125%, 6/01/24   8/19 at 100.00 Ca $35,853,811
15,355   5.375%, 6/01/24   8/19 at 100.00 Ca 15,183,792
20,570   5.875%, 6/01/30   8/19 at 100.00 Ca 20,313,081
26,880   5.750%, 6/01/34   8/19 at 100.00 Ca 26,234,611
2,715   6.000%, 6/01/42   8/19 at 100.00 B- 2,704,656
23,180   5.875%, 6/01/47   8/19 at 100.00 B- 22,803,325
10,000   Buckeye Tobacco Settlement Financing Authority, Ohio, Tobacco Settlement Asset-Backed Revenue Bonds, Senior Lien, Series 2007A-3, 6.250%, 6/01/37   6/22 at 100.00 Caa3 10,073,500
1,000   Butler County Port Authority, Ohio, Revenue Bonds, StoryPoint Fairfield Project, Senior Series 2017A-1, 6.250%, 1/15/34, 144A   1/24 at 104.00 N/R 1,087,310
    Centerville, Ohio Health Care Improvement Revenue Bonds, Graceworks Lutheran Services, Refunding & Improvement Series 2017:        
2,750   5.250%, 11/01/37   11/27 at 100.00 N/R 3,031,930
3,200   5.250%, 11/01/47   11/27 at 100.00 N/R 3,478,432
    Cleveland Heights-University Heights City School District, Ohio, General Obligation Bonds, School Improvement Series 2014:        
3,345   5.000%, 12/01/51   6/23 at 100.00 A1 3,707,029
4,965   5.000%, 12/01/51 (Pre-refunded 6/01/23)   6/23 at 100.00 N/R (4) 5,673,208
5,000   County of Lucas, Ohio, Hospital Revenue Bonds, ProMedica Healthcare Obligated Group, Series 2018A, 5.250%, 11/15/48   11/28 at 100.00 Baa1 5,921,950
37,150   Cuyahoga County, Ohio, Certificates of Participation, Convention Hotel Project, Series 2014, 4.375%, 12/01/44 (UB) (5)   6/24 at 100.00 A1 38,984,096
7,870   Franklin County, Ohio, Hospital Revenue Bonds, Nationwide Children's Hospital Project, Improvement Series 2012A, 5.000%, 11/01/42   5/22 at 100.00 Aa2 8,480,397
4,440   Franklin County, Ohio, Revenue Bonds, Trinity Health Credit Group, Series 2017A, 3.250%, 12/01/42   12/27 at 100.00 AA- 4,524,671
6,425   JobsOhio Beverage System, Ohio, Statewide Liquor Profits Revenue Bonds, Senior Lien Series 2013A, 5.000%, 1/01/38 (UB) (5)   1/23 at 100.00 Aa3 7,111,640
    JobsOhio Beverage System, Ohio, Statewide Senior Lien Liquor Profits Revenue Bonds, Tender Option Bond Trust 2016-XG0052:        
390   13.903%, 1/01/38, 144A (IF) (5)   1/23 at 100.00 Aa3 555,450
1,750   13.989%, 1/01/38, 144A (IF) (5)   1/23 at 100.00 Aa3 2,497,705
625   13.995%, 1/01/38, 144A (IF) (5)   1/23 at 100.00 Aa3 892,181
1,250   13.995%, 1/01/38, 144A (IF) (5)   1/23 at 100.00 Aa3 1,784,362
1,725   13.995%, 1/01/38, 144A (IF) (5)   1/23 at 100.00 Aa3 2,462,420
2,000   13.995%, 1/01/38, 144A (IF) (5)   1/23 at 100.00 Aa3 2,854,980
2,885   Lucas County, Ohio, Hospital Revenue Bonds, ProMedica Healthcare Obligated Group, Series 2011A, 6.000%, 11/15/41 (Pre-refunded 11/15/21)   11/21 at 100.00 BBB (4) 3,198,369
34
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Ohio (continued)        
    Middletown City School District, Butler County, Ohio, General Obligation Bonds, Refunding Series 2007:        
$4,380   5.250%, 12/01/27  –  AGM Insured   No Opt. Call A2 $5,500,535
6,000   5.250%, 12/01/31  –  AGM Insured   No Opt. Call A2 7,809,780
12,000   Muskingum County, Ohio, Hospital Facilities Revenue Bonds, Genesis HealthCare System Obligated Group Project, Series 2013, 5.000%, 2/15/48   2/23 at 100.00 Ba2 12,790,440
8,500   Ohio Air Quality Development Authority, Ohio, Air Quality Development Revenue Bonds, FirstEnergy Generation Corporation Project, Series 2009A, 5.700%, 8/01/20 (7)   No Opt. Call N/R 8,011,250
1,050   Ohio Air Quality Development Authority, Ohio, Pollution Control Revenue Bonds, FirstEnergy Generation Corporation Project, Refunding Series 2009B, 3.100%, 3/01/23 (Mandatory Put 3/01/19) (7)   No Opt. Call N/R 989,625
2,020   Ohio Air Quality Development Authority, Ohio, Pollution Control Revenue Bonds, FirstEnergy Nuclear Generation Corporation Project, Refunding Series 2010B, 3.750%, 6/01/33 (Mandatory Put 6/01/20) (7)   No Opt. Call N/R 1,903,850
1,000   Ohio Air Quality Development Authority, Ohio, Pollution Control Revenue Bonds, FirstEnergy Nuclear Generation Project, Refunding Series 2006B, 3.125%, 1/01/34 (7)   No Opt. Call N/R 942,500
20,765   Ohio Air Quality Development Authority, Ohio, Pollution Control Revenue Bonds, FirstEnergy Nuclear Generation Project, Refunding Series 2009A, 4.375%, 6/01/33 (Mandatory Put 6/01/22) (7)   No Opt. Call N/R 21,387,950
4,975   Ohio Turnpike Commission, Turnpike Revenue Bonds, Infrastructure Project, Junior Lien Series 2013A-1, 5.000%, 2/15/48   2/23 at 100.00 A+ 5,469,117
1,240   Ohio Turnpike Commission, Turnpike Revenue Bonds, Infrastructure Projects, Junior Lien Convertible Series 2013A-3, 0.000%, 2/15/36 (6)   2/31 at 100.00 A+ 1,371,899
1,130   Ohio Water Development Authority, Pollution Control Revenue Refunding Bonds, FirstEnergy Nuclear Generating Corporation Project, Series 2006B, 4.000%, 12/01/33 (7)   No Opt. Call N/R 1,065,025
20,405   Ohio Water Development Authority, Pollution Control Revenue Refunding Bonds, FirstEnergy Nuclear Generating Corporation Project, Series 2009A, 4.375%, 6/01/33 (Mandatory Put 6/01/22) (7)   No Opt. Call N/R 21,017,150
20,480   Ohio Water Development Authority, Pollution Control Revenue Refunding Bonds, FirstEnergy Nuclear Generating Corporation Project, Series 2010B, 4.375%, 6/01/33 (Mandatory Put 6/01/22) (7)   No Opt. Call N/R 21,094,400
1,610   Ohio Water Development Authority, Pollution Control Revenue Refunding Bonds, FirstEnergy Nuclear Generating Corporation Project, Series 2010C, 4.000%, 6/01/33 (7)   No Opt. Call N/R 1,517,425
    Southeastern Ohio Port Authority, Hosptial Facilities Revenue Bonds, Memorial Health System Obligated Group Project, Refunding and Improvement Series 2012:        
1,095   5.750%, 12/01/32   12/22 at 100.00 BB- 1,190,659
870   6.000%, 12/01/42   12/22 at 100.00 BB- 932,692
1,615   Toledo Lucas County Port Authority, Ohio, Revenue Bonds, StoryPoint Waterville Project, Series 2016A-1, 6.125%, 1/15/34, 144A   1/24 at 104.00 N/R 1,743,506
1,330   Tuscarawas County Economic Development and Finance Alliance, Ohio, Higher Education Facilities Revenue Bonds, Ashland University, Refunding & Improvement Series 2015, 6.000%, 3/01/45   3/25 at 100.00 N/R 1,411,276
35
NVG Nuveen AMT-Free Municipal Credit Income Fund (continued)
  Portfolio of Investments July 31, 2019
  (Unaudited)
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Ohio (continued)        
$2,000   University of Akron, Ohio, General Receipts Bonds, Federally Taxable Build America Bonds, Series 2010B, 5.000%, 1/01/29  –  AGM Insured   1/20 at 100.00 A1 $2,029,160
446,760   Total Ohio       364,083,844
    Oklahoma – 0.7% (0.4% of Total Investments)        
1,225   Fort Sill Apache Tribe of Oklahoma Economic Development Authority, Gaming Enterprise Revenue Bonds, Fort Sill Apache Casino, Series 2011A, 8.500%, 8/25/26, 144A   8/21 at 100.00 N/R 1,369,293
3,500   Grand River Dam Authority, Oklahoma, Revenue Bonds, Series 2010A, 5.250%, 6/01/40 (Pre-refunded 6/01/20)   6/20 at 100.00 A1 (4) 3,621,205
    Oklahoma City Water Utilities Trust, Oklahoma, Water and Sewer Revenue Bonds, Series 2011:        
1,500   5.000%, 7/01/40   7/21 at 100.00 AAA 1,601,985
1,000   5.375%, 7/01/40   7/21 at 100.00 AAA 1,077,810
    Oklahoma Development Finance Authority, Health System Revenue Bonds, OU Medicine Project, Series 2018B:        
5,290   5.500%, 8/15/52   8/28 at 100.00 BB+ 6,302,559
5,530   5.500%, 8/15/57   8/28 at 100.00 BB+ 6,559,686
2,340   Tulsa County Industrial Authority, Oklahoma, Senior Living Community Revenue Bonds, Montereau, Inc Project, Refunding Series 2017, 5.250%, 11/15/45   11/25 at 102.00 BBB- 2,640,830
20,385   Total Oklahoma       23,173,368
    Oregon – 0.2% (0.1% of Total Investments)        
    Multnomah County Hospital Facilities Authority, Oregon, Revenue Bonds, Mirabella South Waterfront, Refunding Series 2014A:        
1,000   5.400%, 10/01/44   10/24 at 100.00 N/R 1,087,520
800   5.500%, 10/01/49   10/24 at 100.00 N/R 871,792
    Oregon Department of Administrative Services, State Lottery Revenue Bonds, Series 2011A:        
555   5.250%, 4/01/31   4/21 at 100.00 Aa2 591,480
3,445   5.250%, 4/01/31 (Pre-refunded 4/01/21)   4/21 at 100.00 N/R (4) 3,673,507
5,800   Total Oregon       6,224,299
    Pennsylvania – 8.1% (5.2% of Total Investments)        
    Allegheny Country Industrial Development Authority, Pennsylvania, Environmental Improvement Revenue Bonds, United States Steel Corporation Project, Refunding Series 2009:        
170   6.750%, 11/01/24   11/19 at 100.00 B 171,668
195   6.875%, 5/01/30   11/19 at 100.00 B 196,129
14,790   Allegheny County Hospital Development Authority, Pennsylvania, Revenue Bonds, Allegheny Health Network Obligated Group Issue, Series 2018A, 4.000%, 4/01/44   4/28 at 100.00 A 15,814,060
3,335   Allegheny County Sanitary Authority, Pennsylvania, Sewer Revenue Bonds, Refunding Series 2010, 5.000%, 6/01/40  –  AGM Insured   12/20 at 100.00 A1 3,477,805
2,540   Allentown Neighborhood Improvement Zone Development Authority, Pennsylvania, Tax Revenue Bonds, City Center Refunding Project, Series 2017, 5.000%, 5/01/42, 144A   5/27 at 100.00 Ba3 2,798,267
36
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Pennsylvania (continued)        
$1,245   Beaver County Industrial Development Authority, Pennsylvania, Pollution Control Revenue Bonds, FirstEnergy Nuclear Generation Project, Refunding Series 2005A, 4.000%, 1/01/35 (Mandatory Put 7/01/21) (7)   No Opt. Call N/R $1,173,412
7,750   Beaver County Industrial Development Authority, Pennsylvania, Pollution Control Revenue Refunding Bonds, FirstEnergy Generation Project, Series 2008B, 4.250%, 10/01/47 (Mandatory Put 4/01/21) (7)   No Opt. Call N/R 7,982,500
    Beaver County Industrial Development Authority, Pennsylvania, Pollution Control Revenue Refunding Bonds, FirstEnergy Nuclear Generation Project, Series 2006A:        
13,235   4.375%, 1/01/35 (Mandatory Put 7/01/22) (7)   No Opt. Call N/R 13,632,050
3,145   3.500%, 4/01/41 (Mandatory Put 6/01/20) (7)   No Opt. Call N/R 2,964,162
1,240   Beaver County Industrial Development Authority, Pennsylvania, Pollution Control Revenue Refunding Bonds, FirstEnergy Nuclear Generation Project, Series 2006B, 3.500%, 12/01/35 (Mandatory Put 6/01/20) (7)   No Opt. Call N/R 1,168,700
13,545   Berks County Industrial Development Authority, Pennsylvania, Health System Revenue Bonds, Tower Health Project, Series 2017, 5.000%, 11/01/50   11/27 at 100.00 A3 15,509,160
    Bucks County Industrial Development Authority, Pennsylvania, Revenue Bonds, School Lane Charter School Project, Series 2016:        
2,410   5.125%, 3/15/36   3/27 at 100.00 BBB- 2,704,092
6,420   5.125%, 3/15/46   3/27 at 100.00 BBB- 7,080,618
    Chester County Health and Education Facilities Authority, Pennsylvania, Health System Revenue Bonds, Jefferson Health System, Series 2010A:        
1,580   5.000%, 5/15/40 (Pre-refunded 5/15/20)   5/20 at 100.00 AA (4) 1,628,206
4,435   5.000%, 5/15/40 (Pre-refunded 5/15/20)   5/20 at 100.00 N/R (4) 4,568,538
10,850   Commonwealth Financing Authority, Pennsylvania, State Appropriation Lease Bonds, Master Settlement, Series 2018, 4.000%, 6/01/39  –  AGM Insured (UB) (5)   6/28 at 100.00 A1 11,911,998
1,000   Cumberland County Municipal Authority, Pennsylvania, Revenue Bonds, Diakon Lutheran Social Ministries Project, Series 2015, 5.000%, 1/01/29   1/25 at 100.00 BBB+ 1,122,480
7,665   Dauphin County General Authority, Pennsylvania, Health System Revenue Bonds, Pinnacle Health System Project, Series 2012A, 5.000%, 6/01/42   6/22 at 100.00 A+ 8,276,820
8,750   Delaware River Port Authority, New Jersey and Pennsylvania, Revenue Bonds, Series 2010E, 5.000%, 1/01/40 (Pre-refunded 1/01/20)  –  AGM Insured   1/20 at 100.00 AA (4) 8,892,975
3,000   Dubois Hospital Authority, Pennsylvania, Hospital Revenue Bonds, Penn Highlands Healthcare, Series 2018, 5.000%, 7/15/48   1/28 at 100.00 A- 3,472,530
1,250   Lancaster County Hospital Authority, Pennsylvania, Revenue Bonds, Landis Homes Retirement Community Project, Refunding Series 2015A, 5.000%, 7/01/45   7/25 at 100.00 BBB- 1,339,000
1,500   Lehigh County Authority, Pennsylvania, Water and Sewer Revenue Bonds, Allentown Concession, Series 2013A, 5.125%, 12/01/47   12/23 at 100.00 A 1,682,955
    Montgomery County Industrial Development Authority, Pennsylvania, FHA Insured Mortgage Revenue Bonds, New Regional Medical Center Project, Series 2010:        
7,970   5.250%, 8/01/33 (Pre-refunded 8/01/20)   8/20 at 100.00 N/R (4) 8,300,356
5,295   5.375%, 8/01/38 (Pre-refunded 8/01/20)   8/20 at 100.00 N/R (4) 5,521,044
37
NVG Nuveen AMT-Free Municipal Credit Income Fund (continued)
  Portfolio of Investments July 31, 2019
  (Unaudited)
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Pennsylvania (continued)        
    Montgomery County Industrial Development Authority, Pennsylvania, Health System Revenue Bonds, Albert Einstein Healthcare Network Issue, Series 2015A:        
$10,480   5.250%, 1/15/45   1/25 at 100.00 Ba1 $11,695,366
1,200   5.250%, 1/15/46   1/25 at 100.00 Ba1 1,338,132
11,810   Pennsylvania Economic Development Financing Authority, Exempt Facilities Revenue Refunding Bonds, PPL Energy Supply, LLC Project, Series 2009A, 6.400%, 12/01/38   9/25 at 100.00 B3 12,698,939
13,500   Pennsylvania Turnpike Commission, Oil Franchise Tax Revenue Bonds, Senior Series 2018A, 5.250%, 12/01/44   12/28 at 100.00 Aa3 16,470,135
3,705   Pennsylvania Turnpike Commission, Turnpike Revenue Bonds, Series 2015A-1, 5.000%, 12/01/45   6/25 at 100.00 A+ 4,220,403
6,450   Pennsylvania Turnpike Commission, Turnpike Revenue Bonds, Series 2018A-2, 5.000%, 12/01/43   12/28 at 100.00 A1 7,725,810
11,000   Pennsylvania Turnpike Commission, Turnpike Revenue Bonds, Subordinate Series 2009C, 6.250%, 6/01/33  –  AGM Insured   6/26 at 100.00 A2 13,966,040
15,000   Pennsylvania Turnpike Commission, Turnpike Revenue Bonds, Subordinate Series 2015B-1, 5.000%, 12/01/45   12/25 at 100.00 A3 16,970,100
5,000   Pennsylvania Turnpike Commission, Turnpike Revenue Bonds, Subordinate Series 2019A, 4.000%, 12/01/49   12/29 at 100.00 A3 5,380,250
10,305   Philadelphia Hospitals and Higher Education Facilities Authoirty, Pennsylvania, Hospital Revenue Bonds, Temple University Health System Obligated Group, Series 2012A, 5.625%, 7/01/42   7/22 at 100.00 Ba1 11,137,953
    Philadelphia, Pennsylvania, Airport Revenue Bonds, Series 2010A:        
5,000   5.000%, 6/15/35  –  AGM Insured   6/20 at 100.00 A2 5,147,450
17,850   5.000%, 6/15/40  –  AGM Insured   6/20 at 100.00 A2 18,360,510
7,055   Pittsburgh and Allegheny County Sports and Exhibition Authority, Pennsylvania, Hotel Room Excise Tax Revenue Bonds, Refunding Series 2010, 5.000%, 2/01/35  –  AGM Insured   8/20 at 100.00 A2 7,275,469
5,180   Pittsburgh and Allegheny County Sports and Exhibition Authority, Pennsylvania, Sales Tax Revenue Bonds, Refunding Series 2010, 5.000%, 2/01/31  –  AGM Insured   8/20 at 100.00 A1 5,349,023
    Scranton, Pennsylvania, Sewer Authority Revenue Bonds, Series 2011A:        
1,125   5.250%, 12/01/31 (Pre-refunded 12/01/21)  –  AGM Insured   12/21 at 100.00 AA (4) 1,232,932
1,000   5.500%, 12/01/35 (Pre-refunded 12/01/21)  –  AGM Insured   12/21 at 100.00 AA (4) 1,101,680
5,790   Susquehanna Area Regional Airport Authority, Pennsylvania, Airport System Revenue Bonds, Series 2012B, 4.000%, 1/01/33   1/23 at 100.00 BB+ 5,986,397
254,765   Total Pennsylvania       277,446,114
    Puerto Rico – 1.4% (0.9% of Total Investments)        
    Puerto Rico Aqueduct and Sewerage Authority, Revenue Bonds, Senior Lien Series 2008A:        
1,727   6.000%, 7/01/38   9/19 at 100.00 C 1,748,588
9,425   6.000%, 7/01/44   9/19 at 100.00 C 9,542,812
38
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Puerto Rico (continued)        
    Puerto Rico Aqueduct and Sewerage Authority, Revenue Bonds, Senior Lien Series 2012A:        
$2,200   5.125%, 7/01/37   7/22 at 100.00 C $2,222,000
4,705   5.250%, 7/01/42   7/22 at 100.00 C 4,763,813
8,315   6.000%, 7/01/47   7/22 at 100.00 C 8,564,450
590   Puerto Rico Highway and Transportation Authority, Highway Revenue Bonds, Series 2004J, 5.000%, 7/01/29  –  NPFG Insured   9/19 at 100.00 Baa2 595,192
    Puerto Rico Urgent Interest Fund Corp (COFINA), National Custodial Taxable Trust Unit, Series 2007A Sr. Bond:        
37,264   0.000%, 8/01/47   No Opt. Call N/R 9,848,077
50,651   0.000%, 8/01/54   No Opt. Call N/R 9,597,413
114,877   Total Puerto Rico       46,882,345
    Rhode Island – 1.0% (0.6% of Total Investments)        
1,000   Rhode Island Health and Educational Building Corporation, Revenue Bonds, Care New England Health System, Series 2013A, 6.000%, 9/01/33 (Pre-refunded 9/01/23)   9/23 at 100.00 N/R (4) 1,191,020
292,435   Rhode Island Tobacco Settlement Financing Corporation, Tobacco Settlement Asset-Backed Bonds, Series 2007A, 0.000%, 6/01/52   8/19 at 14.39 CCC+ 33,074,398
293,435   Total Rhode Island       34,265,418
    South Carolina – 2.8% (1.8% of Total Investments)        
7,600   Piedmont Municipal Power Agency, South Carolina, Electric Revenue Bonds, Series 2004A-2, 0.000%, 1/01/31  –  AMBAC Insured   No Opt. Call A- 5,647,256
2,705   Saint Peters Parish/Jasper County Public Facilities Corporation, South Carolina, Installment Purchase Revenue Bonds, County Office Building Projects, Series 2011A, 5.250%, 4/01/44 (Pre-refunded 4/01/21)  –  AGC Insured   4/21 at 100.00 A2 (4) 2,889,075
    South Carolina Jobs-Economic Development Authority, Health Facilities Revenue Bonds, Lutheran Homes of South Carolina Inc, Refunding Series 2017B:        
1,000   5.000%, 5/01/37   5/23 at 104.00 N/R 1,078,800
750   5.000%, 5/01/42   5/23 at 104.00 N/R 802,073
1,250   South Carolina Jobs-Economic Development Authority, Hospital Revenue Bonds, Palmetto Health, Refunding Series 2011A, 6.500%, 8/01/39 (Pre-refunded 8/01/21)  –  AGM Insured   8/21 at 100.00 AA (4) 1,382,188
4,000   South Carolina Jobs-Economic Development Authority, Hospital Revenue Bonds, Prisma Health Obligated Group, Series 2018A, 5.000%, 5/01/48   5/28 at 100.00 A 4,656,800
    South Carolina Public Service Authority, Santee Cooper Revenue Obligations, Refunding & Improvement Series 2015A:        
11,170   5.000%, 12/01/50   6/25 at 100.00 A- 12,596,967
34,000   5.000%, 12/01/50 (UB) (5)   6/25 at 100.00 A- 38,343,500
5,000   South Carolina Public Service Authority, Santee Cooper Revenue Obligations, Refunding Series 2014C, 5.000%, 12/01/46   12/24 at 100.00 A- 5,613,400
1,310   South Carolina Public Service Authority, Santee Cooper Revenue Obligations, Series 2013A, 5.125%, 12/01/43   12/23 at 100.00 A- 1,451,480
10,285   South Carolina Public Service Authority, Santee Cooper Revenue Obligations, Series 2014A, 5.500%, 12/01/54   6/24 at 100.00 A- 11,619,273
39
NVG Nuveen AMT-Free Municipal Credit Income Fund (continued)
  Portfolio of Investments July 31, 2019
  (Unaudited)
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    South Carolina (continued)        
$10,250   Spartanburg Regional Health Services District, Inc., South Carolina, Hosptial Refunding Revenue Bonds, Series 2012A, 5.000%, 4/15/32   4/22 at 100.00 A3 $11,032,690
89,320   Total South Carolina       97,113,502
    South Dakota – 0.8% (0.5% of Total Investments)        
15,000   South Dakota Health and Educational Facilities Authority, Revenue Bonds, Avera Health, Refunding Series 2017, 5.000%, 7/01/46   7/27 at 100.00 A1 17,341,050
3,765   South Dakota Health and Educational Facilities Authority, Revenue Bonds, Regional Health, Refunding Series 2017, 5.000%, 9/01/40   9/27 at 100.00 A1 4,411,601
4,350   South Dakota Health and Educational Facilities Authority, Reveune Bonds, Avera Health, Series 2012A, 5.000%, 7/01/42   7/21 at 100.00 A1 4,590,642
23,115   Total South Dakota       26,343,293
    Tennessee – 1.0% (0.6% of Total Investments)        
12,895   Chattanooga Health, Educational and Housing Facility Board, Tennessee, Revenue Bonds, Catholic Health Initiatives, Series 2013A, 5.250%, 1/01/45 (Pre-refunded 1/01/23)   1/23 at 100.00 BBB+ (4) 14,553,426
1,850   Chattanooga-Hamilton County Hospital Authority, Tennessee, Hospital Revenue Bonds, Erlanger Health System, Refunding Series 2014A, 5.000%, 10/01/39   10/24 at 100.00 Baa2 2,046,618
2,000   Knox County Health, Educational and Housing Facility Board, Tennesse, Hospital Revenue Bonds, East Tennessee Children's Hospital, Series 2019, 4.000%, 11/15/48   2/29 at 100.00 A 2,135,100
2,645   Memphis/Shelby County Economic Development Growth Engine Industrial Development Board, Tennessee, Tax Increment Revenue Bonds, Graceland Project, Senior Series 2017A, 5.500%, 7/01/37   7/27 at 100.00 N/R 2,908,019
3,560   Metropolitan Government of Nashville-Davidson County Health and Educational Facilities Board, Tennessee, Revenue Bonds, Knowledge Academy Charter School, Series 2017A, 5.500%, 6/15/37, 144A (7)   6/27 at 100.00 N/R 2,136,000
10,000   The Health and Educational Facilities Board of the City of Franklin, Tennessee, Revenue Bonds, Provision Cares Proton Therapy Center, Nashville Project, Series 2017A, 7.500%, 6/01/47, 144A   6/27 at 100.00 N/R 11,048,500
32,950   Total Tennessee       34,827,663
    Texas – 11.4% (7.3% of Total Investments)        
735   Arlington Higher Education Finance Corporation, Texas, Education Revenue Bonds, Wayside Schools, Series 2016A, 4.375%, 8/15/36   8/21 at 100.00 BB+ 743,482
3,635   Aubrey, Denton County, Texas, Special Assessment Revenue Bonds, Jackson Ridge Public Improvement District Phase 1 Project, Series 2015, 7.250%, 9/01/45   9/23 at 103.00 N/R 3,842,450
3,160   Aubrey, Denton County, Texas, Special Assessment Revenue Bonds, Jackson Ridge Public Improvement District Phases 2-3 Major Improvements Project, Series 2015, 8.250%, 9/01/40   9/23 at 103.00 N/R 3,332,315
5,480   Austin, Texas, Electric Utility System Revenue Bonds, Refunding Series 2015A, 5.000%, 11/15/45 (UB) (5)   11/25 at 100.00 Aa3 6,311,535
2,500   Board of Managers, Joint Guadalupe County-Seguin City Hospital, Texas, Hospital Mortgage Revenue Bonds, Refunding & Improvement Series 2015, 5.000%, 12/01/45   12/25 at 100.00 BB 2,662,000
2,380   Celina, Texas, Special Assessment Revenue Bonds, Sutton Fields II Public Improvement District Neighborhood Improvement Area 1 Project, Series 2015, 7.250%, 9/01/45   3/23 at 103.00 N/R 2,465,156
40
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Texas (continued)        
$4,225   Celina, Texas, Special Assessment Revenue Bonds, Sutton Fields II Public Improvement District Neighborhood Improvement Areas 2-5 Major Improvement Project, Series 2015, 8.250%, 9/01/40   3/23 at 103.00 N/R $4,370,044
395   Celina, Texas, Special Assessment Revenue Bonds, Wells South Public Improvement District Neighborhood Improvement Area 1 Project, Series 2015, 6.250%, 9/01/45   9/24 at 100.00 N/R 414,726
    Central Texas Regional Mobility Authority, Revenue Bonds, Senior Lien Series 2011:        
1,500   5.750%, 1/01/31 (Pre-refunded 1/01/21)   1/21 at 100.00 Baa1 (4) 1,595,160
1,700   6.250%, 1/01/46 (Pre-refunded 1/01/21)   1/21 at 100.00 Baa1 (4) 1,819,731
13,685   Central Texas Regional Mobility Authority, Revenue Bonds, Senior Lien, Series 2015A, 5.000%, 1/01/45   7/25 at 100.00 Baa1 15,400,689
6,375   Central Texas Regional Mobility Authority, Revenue Bonds, Senior Lien, Series 2016, 3.375%, 1/01/41   1/26 at 100.00 Baa1 6,481,781
790   Clifton Higher Education Finance Corporation, Texas, Education Revenue Bonds, Idea Public Schools, Series 2012, 3.750%, 8/15/22   No Opt. Call BBB+ 811,093
    Clifton Higher Education Finance Corporation, Texas, Education Revenue Bonds, Uplift Education Charter School, Series 2013A:        
765   4.350%, 12/01/42   12/22 at 100.00 BBB- 777,531
685   4.400%, 12/01/47   12/22 at 100.00 BBB- 695,994
4,000   Clifton Higher Education Finance Corporation, Texas, Education Revenue Bonds, Uplift Education Charter School, Series 2015A, 5.000%, 12/01/45   6/25 at 100.00 BBB- 4,353,400
    Club Municipal Management District 1, Texas, Special Assessment Revenue Bonds, Improvement Area 1 Project, Series 2016:        
715   5.750%, 9/01/28   9/23 at 103.00 N/R 724,538
770   6.500%, 9/01/46   9/23 at 103.00 N/R 783,244
11,735   Dallas-Fort Worth International Airport, Texas, Joint Revenue Bonds, Refunding & Improvement Series 2012C, 5.000%, 11/01/45   11/21 at 100.00 A+ 12,624,983
2,520   Decatur Hospital Authority, Texas, Revenue Bonds, Wise Regional Health System, Series 2013A, 6.375%, 9/01/42   9/23 at 100.00 N/R 2,878,243
400   Decatur Hospital Authority, Texas, Revenue Bonds, Wise Regional Health System, Series 2014A, 5.250%, 9/01/44   9/24 at 100.00 BBB- 438,000
1,255   Fort Bend County Industrial Development Corporation, Texas, Revenue Bonds, NRG Energy Inc Project, Series 2012A RMKT, 4.750%, 5/01/38   11/22 at 100.00 Baa3 1,305,828
8,920   Fort Bend County Industrial Development Corporation, Texas, Revenue Bonds, NRG Energy Inc Project, Series 2012B, 4.750%, 11/01/42   11/22 at 100.00 Baa3 9,281,260
    Grand Parkway Transportation Corporation, Texas, System Toll Revenue Bonds, Subordinate Lien Series 2013B:        
20,000   5.250%, 10/01/51   10/23 at 100.00 AA 22,489,800
10,000   5.000%, 4/01/53 (UB) (5)   10/23 at 100.00 AA 11,114,100
5,470   Grand Parkway Transportation Corporation, Texas, System Toll Revenue Bonds, Tender Option Bond Trust 2015-XF0228, 14.116%, 11/01/44, 144A (IF) (5)   10/23 at 100.00 AA 7,908,307
4,255   Harris County Cultural Education Facilities Finance Corporation, Texas, Revenue Bonds, Houston Methodist Hospital System, Series 2015, 5.000%, 12/01/45   6/25 at 100.00 AA 4,819,681
1,545   Harris County Metropolitan Transit Authority, Texas, Sales and Use Tax Revenue Bonds, Tender Option Bond Trust 2016-XG0054, 10.987%, 11/01/41, 144A (IF) (5)   11/21 at 100.00 Aa2 1,894,834
41
NVG Nuveen AMT-Free Municipal Credit Income Fund (continued)
  Portfolio of Investments July 31, 2019
  (Unaudited)
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Texas (continued)        
$4,080   Harris County, Texas, General Obligtion Toll Road Revenue Bonds, Tender Option Bond Trust 2015-XF0074, 11.703%, 8/15/32  –  AGM Insured, 144A (IF)   No Opt. Call AAA $8,758,536
6,000   Harris County-Houston Sports Authority, Texas, Revenue Bonds, Capital Appreciation Refunding Senior Lien Series 2014A, 0.000%, 11/15/48   11/31 at 44.13 A2 1,858,260
6,000   Harris County-Houston Sports Authority, Texas, Revenue Bonds, Refunding Senior Lien Series 2014A, 5.000%, 11/15/53   11/24 at 100.00 A- 6,712,440
    Harris County-Houston Sports Authority, Texas, Revenue Bonds, Third Lien Series 2004A-3:        
1,940   0.000%, 11/15/34 (Pre-refunded 11/15/24)  –  NPFG Insured   11/24 at 55.69 Baa2 (4) 992,077
14,055   0.000%, 11/15/34  –  NPFG Insured   11/24 at 55.69 BB 6,722,225
5,000   Houston Higher Education Finance Corporation, Texas, Education Revenue Bonds, KIPP, Inc, Refunding Series 2015, 4.000%, 8/15/44   8/25 at 100.00 AAA 5,311,750
    Houston, Texas, Hotel Occupancy Tax and Special Revenue Bonds, Convention and Entertainment Project, Series 2001B:        
4,130   0.000%, 9/01/26  –  AMBAC Insured   No Opt. Call A2 3,622,753
4,865   0.000%, 9/01/27  –  AGM Insured   No Opt. Call A2 4,149,018
4,715   Houston, Texas, Hotel Occupancy Tax and Special Revenue Bonds, Refunding Series 2015, 5.000%, 9/01/40   9/24 at 100.00 A 5,284,336
17,000   Houston, Texas, Water and Sewerage System Revenue Bonds, Refunding Junior Lien Series 2002A, 5.750%, 12/01/32  –  AGM Insured (ETM)   No Opt. Call A2 (4) 24,750,130
6,700   Hutto Independent School District, Williamson County, Texas, General Obligation Bonds, Refunding Series 2012A, 5.000%, 8/01/46   8/21 at 100.00 A+ 7,114,663
3,500   Irving, Texas, Hotel Occupancy Tax Revenue Bonds, Series 2014B, 5.000%, 8/15/43   9/19 at 100.00 BBB+ 3,503,220
940   Kerrville Health Facilities Development Corporation, Texas, Revenue Bonds, Sid Peterson Memorial Hospital Project, Series 2015, 5.000%, 8/15/30   8/25 at 100.00 A- 1,085,324
1,000   Lower Colorado River Authority, Texas, Transmission Contract Revenue Bonds, LCRA Transmission Services Corporation Project, Refunding Series 2015, 5.000%, 5/15/45   5/25 at 100.00 A 1,142,150
    McCamey County Hospital District, Texas, General Obligation Bonds, Series 2013:        
3,095   5.750%, 12/01/33   12/25 at 100.00 B1 3,393,018
3,125   6.125%, 12/01/38   12/25 at 100.00 B1 3,431,438
    Montgomery County Toll Road Authority, Texas, Toll Road Revenue Bonds, Senior Lien Series 2018:        
1,900   5.000%, 9/15/43   9/25 at 100.00 BBB- 2,103,547
1,785   5.000%, 9/15/48   9/25 at 100.00 BBB- 1,970,587
    New Hope Cultural Education Facilities Finance Corporation, Texas, Retirement Facility Revenue Bonds, Legacy at Willow Bend Project, Series 2016:        
2,335   5.000%, 11/01/46   11/23 at 103.00 BBB- 2,485,047
6,015   5.000%, 11/01/51   11/23 at 103.00 BBB- 6,382,035
745   New Hope Cultural Education Facilities Finance Corporation, Texas, Retirement Facility Revenue Bonds, Wesleyan Homes, Inc Project, Series 2014, 5.500%, 1/01/43   1/25 at 100.00 N/R 801,136
210   New Hope Cultural Education Facilities Finance Corporation, Texas, Student Housing Revenue Bonds, CHF-Collegiate Housing Corpus Christi II, LLC-Texas A&M University-Corpus Christi Project, Series 2016A, 5.000%, 4/01/48   4/26 at 100.00 B1 211,405
42
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Texas (continued)        
$4,530   New Hope Cultural Education Facilities Finance Corporation, Texas, Student Housing Revenue Bonds, CHF-Collegiate Housing Foundation - College Station I LLC - Texas A&M University Project, Series 2014A, 4.100%, 4/01/34  –  AGM Insured   4/24 at 100.00 A2 $4,857,428
820   New Hope Cultural Education Facilities Finance Corporation, Texas, Student Housing Revenue Bonds, CHF-Collegiate Housing Foundation - San Antonio 1, LLC - Texas A&M University - San Antonio Project,, 5.000%, 4/01/48   4/26 at 100.00 BBB- 859,688
    New Hope Cultural Education Facilities Finance Corporation, Texas, Student Housing Revenue Bonds, CHF-Collegiate Housing Foundation - Stephenville II, LLC - Tarleton State University Project, Series 2014A:        
1,000   5.000%, 4/01/34   4/24 at 100.00 BBB- 1,074,230
2,200   5.000%, 4/01/39   4/24 at 100.00 BBB- 2,337,852
1,600   5.000%, 4/01/46   4/24 at 100.00 BBB- 1,691,088
5,540   New Hope Cultural Education Facilities Finance Corporation, Texas, Student Housing Revenue Bonds, CHF-Collegiate Housing Galveston-Texas A&M University at Galveston Project, Series 2014A, 5.000%, 4/01/39   4/24 at 100.00 Baa3 5,766,087
3,220   North Fort Bend Water Authority, Texas, Water System Revenue Bonds, Series 2011, 5.000%, 12/15/36  –  AGM Insured   12/21 at 100.00 A2 3,468,584
    North Texas Tollway Authority, Special Projects System Revenue Bonds, Convertible Capital Appreciation Series 2011C:        
2,590   0.000%, 9/01/43 (Pre-refunded 9/01/31) (6)   9/31 at 100.00 N/R (4) 3,208,777
3,910   0.000%, 9/01/45 (Pre-refunded 9/01/31) (6)   9/31 at 100.00 N/R (4) 5,269,976
6,155   North Texas Tollway Authority, System Revenue Bonds, Refunding First Tier, Series 2015B, 5.000%, 1/01/40   1/23 at 100.00 A+ 6,807,553
2,000   North Texas Tollway Authority, System Revenue Bonds, Refunding Second Tier, Series 2015A, 5.000%, 1/01/38   1/25 at 100.00 A 2,285,300
610   Reagan Hospital District of Reagan County, Texas, Limited Tax Revenue Bonds, Series 2014A, 5.125%, 2/01/39   2/24 at 100.00 Ba2 641,787
1,000   Red River Education Finance Corporation, Texas, Higher Education Revenue Bonds, Saint Edward's University Project, Series 2016, 4.000%, 6/01/41   6/26 at 100.00 Baa2 1,035,970
2,410   Tarrant County Cultural Education Facilities Finance Corporation, Texas, Hospital Revenue Bonds, Baylor Health Care System, Series 2011A, 5.000%, 11/15/30   11/21 at 100.00 AA- 2,587,954
1,870   Tarrant County Cultural Education Facilities Finance Corporation, Texas, Hospital Revenue Bonds, Hendrick Medical Center, Refunding Series 2013, 5.500%, 9/01/43   9/23 at 100.00 A 2,102,348
    Tarrant County Cultural Education Facilities Finance Corporation, Texas, Hospital Revenue Bonds, Scott & White Healthcare Project, Series 2010:        
215   5.500%, 8/15/45 (Pre-refunded 8/15/20)   8/20 at 100.00 N/R (4) 224,580
2,675   5.500%, 8/15/45 (Pre-refunded 8/15/20)   8/20 at 100.00 N/R (4) 2,794,198
17,640   Tarrant County Cultural Education Facilities Finance Corporation, Texas, Hospital Revenue Bonds, Scott & White Healthcare Project, Series 2016A, 5.000%, 11/15/45 (UB) (5)   5/26 at 100.00 AA- 20,239,255
4,300   Texas City Industrial Development Corporation, Texas, Industrial Development Revenue Bonds, NRG Energy, inc Project, Fixed Rate Series 2012, 4.125%, 12/01/45   2/25 at 100.00 Baa3 4,401,050
4,000   Texas Department of Housing and Community Affairs, Single Family Mortgage Revenue Bonds, Series 2018A, 4.250%, 9/01/43   9/27 at 100.00 AA+ 4,315,960
43
NVG Nuveen AMT-Free Municipal Credit Income Fund (continued)
  Portfolio of Investments July 31, 2019
  (Unaudited)
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Texas (continued)        
    Texas Municipal Gas Acquisition and Supply Corporation III, Gas Supply Revenue Bonds, Series 2012:        
$2,500   5.000%, 12/15/26   12/22 at 100.00 BBB $2,760,325
2,500   5.000%, 12/15/29   12/22 at 100.00 BBB 2,744,425
4,355   5.000%, 12/15/30   12/22 at 100.00 BBB 4,767,331
2,975   5.000%, 12/15/32   12/22 at 100.00 BBB 3,243,434
3,150   Texas Transportation Commission, Central Texas Turnpike System Revenue Bonds, First Tier Refunding Series 2012A, 5.000%, 8/15/41   8/22 at 100.00 A- 3,395,165
    Texas Transportation Commission, Central Texas Turnpike System Revenue Bonds, First Tier Refunding Series 2015B:        
11,280   0.000%, 8/15/36   8/24 at 59.60 A- 5,759,794
10,000   0.000%, 8/15/37   8/24 at 56.94 A- 4,866,200
    Texas Transportation Commission, Central Texas Turnpike System Revenue Bonds, Second Tier Refunding Series 2015C:        
5,000   5.000%, 8/15/37   8/24 at 100.00 BBB+ 5,609,000
31,810   5.000%, 8/15/42   8/24 at 100.00 BBB+ 35,435,068
7,500   Texas Transportation Commission, State Highway 249 System Revenue Bonds, First Tier Toll Series 2019A, 5.000%, 8/01/57   2/29 at 100.00 Baa3 8,692,125
4,400   Texas Turnpike Authority, Central Texas Turnpike System Revenue Bonds, First Tier Series 2002A, 0.000%, 8/15/25  –  AMBAC Insured   No Opt. Call A- 3,938,396
1,840   Ysleta Independent School District Public Facility Corporation, Texas, Lease Revenue Refunding Bonds, Series 2001, 5.375%, 11/15/24  –  AMBAC Insured   11/19 at 100.00 AA- 1,861,933
374,325   Total Texas       393,167,861
    Virginia – 1.9% (1.2% of Total Investments)        
    Embrey Mill Community Development Authority, Virginia, Special Assessment Revenue Bonds, Series 2015:        
1,200   5.300%, 3/01/35, 144A   3/25 at 100.00 N/R 1,238,508
1,085   5.600%, 3/01/45, 144A   3/25 at 100.00 N/R 1,124,320
11,380   Hampton Roads Transportation Accountability Commission, Virginia, Hampton Roads Transportation Fund Revenue Bonds, Senior Lien Series 2018A, 5.500%, 7/01/57   1/28 at 100.00 AA 14,006,276
14,945   Metropolitan Washington Airports Authority, Virginia, Dulles Toll Road Revenue Bonds, Dulles Metrorail & Capital Improvement Projects, Refunding Second Senior Lien Series 2014A, 5.000%, 10/01/53   4/22 at 100.00 BBB+ 15,969,181
11,000   Metropolitan Washington Airports Authority, Virginia, Dulles Toll Road Revenue Bonds, Dulles Metrorail & Capital improvement Projects, Second Senior Lien Series 2009C, 6.500%, 10/01/41  –  AGC Insured   10/26 at 100.00 A3 14,209,470
10,000   Metropolitan Washington Airports Authority, Virginia, Dulles Toll Road Revenue Bonds, Dulles Metrorail Capital Appreciation, Second Senior Lien Series 2010B, 6.500%, 10/01/44   10/28 at 100.00 BBB+ 13,258,400
2,000   Peninsula Town Center Community Development Authority, Virginia, Special Obligation Bonds, Refunding Series 2018, 5.000%, 9/01/45, 144A   9/27 at 100.00 N/R 2,169,920
44
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Virginia (continued)        
    Roanoke Industrial Development Authority, Virginia, Hospital Revenue Bonds, Carilion Health System Obligated Group, Series 2005B:        
$15   5.000%, 7/01/38 (Pre-refunded 7/01/20)   7/20 at 100.00 Aa3 (4) $15,522
985   5.000%, 7/01/38   7/20 at 100.00 Aa3 1,012,157
1,000   Virginia College Building Authority, Educational Facilities Revenue Bonds, Marymount University Project, Green Series 2015B, 5.250%, 7/01/35, 144A   7/25 at 100.00 Ba2 1,094,400
2,050   Virginia Small Business Finance Authority, Tourism Development Financing Program Revenue Bonds, Downtown Norfolk and Virginia Beach Oceanfront Hotel Projects, Series 2018A, 8.375%, 4/01/41, 144A   4/28 at 112.76 N/R 2,456,249
55,660   Total Virginia       66,554,403
    Washington – 1.4% (0.9% of Total Investments)        
5,000   Energy Northwest, Washington, Electric Revenue Bonds, Columbia Generating Station, Refunding Series 2015A, 5.000%, 7/01/38 (UB) (5)   7/25 at 100.00 AA- 5,814,350
5,750   Washington Health Care Facilities Authority, Revenue Bonds, Fred Hutchinson Cancer Research Center, Series 2011A, 5.625%, 1/01/35   1/21 at 100.00 A2 6,024,735
1,250   Washington Health Care Facilities Authority, Revenue Bonds, Providence Health & Services, Tender Option Bond Trust 2015-XF0148, 13.872%, 10/01/44, 144A (IF) (5)   10/24 at 100.00 AA- 1,813,663
6,565   Washington Health Care Facilities Authority, Revenue Bonds, Seattle Children's Hospital, Series 2012A, 5.000%, 10/01/42   10/22 at 100.00 Aa2 7,198,326
    Washington State Housing Finance Commission, Non-profit Housing Revenue Bonds, Presbyterian Retirement Communities Northwest Proejct, Refunding Series 2016A:        
5,450   5.000%, 1/01/46, 144A   1/25 at 102.00 BB+ 5,897,935
3,650   5.000%, 1/01/51, 144A   1/25 at 102.00 BB+ 3,940,613
21,510   Washington State, Motor Vehicle Fuel Tax General Obligation Bonds, Series 2002-03C, 0.000%, 6/01/28  –  NPFG Insured (UB) (5)   No Opt. Call AA+ 18,203,483
49,175   Total Washington       48,893,105
    West Virginia – 1.7% (1.1% of Total Investments)        
1,900   Monongalia County Commission, West Virginia, Special District Excise Tax Revenue, University Town Centre Economic Opportunity Development District, Refunding & Improvement Series 2017A, 5.500%, 6/01/37, 144A   6/27 at 100.00 N/R 2,060,626
10,000   West Virginia Economic Development Authority, State Lottery Revenue Bonds, Series 2010A, 5.000%, 6/15/40 (Pre-refunded 6/15/20)   6/20 at 100.00 A1 (4) 10,336,400
40,855   West Virginia Hospital Finance Authority, Hospital Revenue Bonds, West Virginia United Health System Obligated Group, Refunding & Improvement Series 2013A, 5.500%, 6/01/44   6/23 at 100.00 A 45,865,049
52,755   Total West Virginia       58,262,075
    Wisconsin – 4.1% (2.6% of Total Investments)        
    Public Finance Authority of Wisconsin, Charter School Revenue Bonds, Cornerstone Charter Academy, North Carolina, Series 2016A:        
1,750   5.000%, 2/01/36, 144A   2/26 at 100.00 N/R 1,813,788
305   5.125%, 2/01/46, 144A   2/26 at 100.00 N/R 313,732
500   Public Finance Authority of Wisconsin, Charter School Revenue Bonds, Corvian Community School Bonds, North Carolina, Series 2017A, 5.125%, 6/15/47, 144A   6/24 at 100.00 N/R 512,625
45
NVG Nuveen AMT-Free Municipal Credit Income Fund (continued)
  Portfolio of Investments July 31, 2019
  (Unaudited)
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Wisconsin (continued)        
$1,480   Public Finance Authority of Wisconsin, Charter School Revenue Bonds, Envision Science Academy Project, Series 2016A, 5.125%, 5/01/36, 144A   5/26 at 100.00 N/R $1,497,124
6,000   Public Finance Authority of Wisconsin, Charter School Revenue Bonds, Phoenix Academy Charter School, North Carolina, Series 2017A, 5.625%, 6/15/37, 144A   6/24 at 100.00 N/R 6,056,700
    Public Finance Authority of Wisconsin, Charter School Revenue Bonds, Uwharrie Charter Academy, North Carolina, Series 2017A:        
1,000   5.500%, 6/15/37, 144A   6/27 at 100.00 N/R 1,009,140
1,790   5.625%, 6/15/47, 144A   6/27 at 100.00 N/R 1,803,998
35,100   Public Finance Authority of Wisconsin, Limited Obligation PILOT Revenue Bonds, American Dream @ Meadowlands Project, Series 2017, 7.000%, 12/01/50, 144A   12/27 at 100.00 N/R 41,945,553
1,700   Public Finance Authority of Wisconsin, Revenue Bonds, Alabama Proton Therapy Center, Senior Series 2017A, 7.000%, 10/01/47, 144A   10/27 at 100.00 N/R 1,880,251
    Public Finance Authority of Wisconsin, Revenue Bonds, Prime Healthcare Foundation, Inc, Series 2017A:        
1,730   5.000%, 12/01/27   No Opt. Call BBB- 1,919,487
1,815   5.200%, 12/01/37   12/27 at 100.00 BBB- 2,097,505
    Public Finance Authority, Wisconsin, Educational Revenue Bonds, Lake Norman Charter School, Series 2018A:        
4,050   5.000%, 6/15/38, 144A   6/26 at 100.00 BBB- 4,412,758
1,575   5.000%, 6/15/48, 144A   6/26 at 100.00 BBB- 1,706,087
2,500   Public Finance Authority, Wisconsin, Exempt Facilities Revenue Bonds, Celanese Project, Refunding Series 2016C, 4.050%, 11/01/30   5/26 at 100.00 Baa3 2,604,800
8,460   Wisconsin Health and Educational Facilities Authority, Revenue Bonds, Aurora Health Care, Inc, Series 2012A, 5.000%, 7/15/25 (Pre-refunded 7/15/21)   7/21 at 100.00 Aa3 (4) 9,093,908
6,620   Wisconsin Health and Educational Facilities Authority, Revenue Bonds, Froedtert Health Inc Obligated Group, Series 2012A, 5.000%, 4/01/42   10/22 at 100.00 AA- 7,158,868
    Wisconsin Health and Educational Facilities Authority, Revenue Bonds, Marshfield Clinic, Series 2012B:        
3,495   4.500%, 2/15/40   2/22 at 100.00 A- 3,634,555
1,485   5.000%, 2/15/40   2/22 at 100.00 A- 1,578,436
    Wisconsin Health and Educational Facilities Authority, Revenue Bonds, Mercy Alliance, Inc, Series 2012:        
11,000   5.000%, 6/01/32   6/22 at 100.00 A3 11,855,910
1,500   5.000%, 6/01/39   6/22 at 100.00 A3 1,603,050
1,250   Wisconsin Health and Educational Facilities Authority, Revenue Bonds, Meriter Hospital, Inc, Series 2011A, 5.750%, 5/01/35 (Pre-refunded 5/01/21)   5/21 at 100.00 N/R (4) 1,348,925
1,450   Wisconsin Health and Educational Facilities Authority, Revenue Bonds, Rocket Education Obligated Group, Series 2017C, 5.250%, 6/01/40, 144A   6/26 at 100.00 N/R 1,551,950
16,190   Wisconsin Health and Educational Facilities Authority, Revenus Bonds, Gundersen Lutheran, Series 2011A, 5.250%, 10/15/39   10/21 at 100.00 A1 17,292,053
1,000   Wisconsin Health and Educational Facilities Authority, Wisconsin, Revenue Bonds, American Baptist Homes of the Midwest Obligated Group, Refunding Series 2017, 5.000%, 8/01/37   8/24 at 103.00 N/R 1,078,050
46
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Wisconsin (continued)        
$2,500   Wisconsin Health and Educational Facilities Authority, Wisconsin, Revenue Bonds, Aurora Health Care, Inc, Series 2013A, 5.125%, 4/15/31 (Pre-refunded 4/15/23)   4/23 at 100.00 Aa3 (4) $2,861,150
    Wisconsin Health and Educational Facilities Authority, Wisconsin, Revenue Bonds, Dickson Hollow Project Series 2014:        
1,000   5.375%, 10/01/44   10/22 at 102.00 N/R 1,073,880
1,500   5.500%, 10/01/49   10/22 at 102.00 N/R 1,616,385
1,000   Wisconsin Health and Educational Facilities Authority, Wisconsin, Revenue Bonds, Rogers Memorial Hospital, Inc, Series 2014A, 5.000%, 7/01/34   7/24 at 100.00 A 1,113,730
    Wisconsin Health and Educational Facilities Authority, Wisconsin, Revenue Bonds, Saint John's Communities Inc, Series 2015B:        
550   5.000%, 9/15/37   9/22 at 100.00 BBB- 573,661
1,350   5.000%, 9/15/45   9/22 at 100.00 BBB- 1,399,194
1,000   Wisconsin Health and Educational Facilities Authority, Wisconsin, Revenue Bonds, Three Pillars Senior Living Communities, Refunding Series 2013, 5.000%, 8/15/33   8/23 at 100.00 A 1,096,810
    Wisconsin Health and Educational Facilities Authority, Wisconsin, Revenue Bonds, Woodland Hills Senior Housing Project, Series 2014:        
2,565   5.000%, 12/01/44   12/22 at 102.00 N/R 2,718,028
1,775   5.250%, 12/01/49   12/22 at 102.00 N/R 1,894,688
126,985   Total Wisconsin       140,116,779
    Wyoming – 0.1% (0.0% of Total Investments)        
    Teton County Hospital District, Wyoming, Hospital Revenue Bonds, St John's Medical Center Project, Series 2011B:        
1,000   5.500%, 12/01/27   12/21 at 100.00 A- 1,073,290
1,000   6.000%, 12/01/36   12/21 at 100.00 A- 1,081,780
2,000   Total Wyoming       2,155,070
$5,728,123   Total Long-Term Investments (cost $4,857,147,634)       5,383,188,907
    Floating Rate Obligations – (5.3)%       (182,490,000)
    MuniFund Preferred Shares, net of deferred offering costs – (11.7)% (8)       (403,753,261)
    Variable Rate Demand Preferred Shares, net of deferred offering costs – (41.0)% (9)       (1,407,838,780)
    Other Assets Less Liabilities – 1.4%       48,528,716
    Net Assets Applicable to Common Shares – 100%       $3,437,635,582
47
NVG Nuveen AMT-Free Municipal Credit Income Fund (continued)
  Portfolio of Investments July 31, 2019
  (Unaudited)
Part F of Form N-PORT was prepared in accordance with U.S. generally accepted accounting principles ("U.S. GAAP") and in conformity with the applicable rules and regulations of the U.S. Securities and Exchange Commission ("SEC") related to interim filings. Part F of Form N-PORT does not include all information and footnotes required by U.S. GAAP for complete financial statements. Certain footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted from this report pursuant to the rules of the SEC. For a full set of the Fund's notes to financial statements, please refer to the Fund's most recently filed annual or semi-annual report.
Fair Value Measurements
Fair value is defined as the price that would be received upon selling an investment or transferring a liability in an orderly transaction to an independent buyer in the principal or most advantageous market for the investment. A three-tier hierarchy is used to maximize the use of observable market data and minimize the use of unobservable inputs and to establish classification of fair value measurements for disclosure purposes. Observable inputs reflect the assumptions market participants would use in pricing the asset or liability. Observable inputs are based on market data obtained from sources independent of the reporting entity. Unobservable inputs reflect the reporting entity’s own assumptions about the assumptions market participants would use in pricing the asset or liability. Unobservable inputs are based on the best information available in the circumstances. The following is a summary of the three-tiered hierarchy of valuation input levels.
Level 1  –     Inputs are unadjusted and prices are determined using quoted prices in active markets for identical securities.
Level 2  –     Prices are determined using other significant observable inputs (including quoted prices for similar securities, interest rates, credit spreads, etc.).
Level 3  –     Prices are determined using significant unobservable inputs (including management’s assumptions in determining the fair value of investments).
The inputs or methodologies used for valuing securities are not an indication of the risks associated with investing in those securities. The following is a summary of the Fund’s fair value measurements as of the end of the reporting period:
  Level 1 Level 2 Level 3 Total
Long-Term Investments:        
Municipal Bonds $ — $5,383,188,907 $ — $5,383,188,907
    
(1) All percentages shown in the Portfolio of Investments are based on net assets applicable to common shares unless otherwise noted.  
(2) Optional Call Provisions: Dates (month and year) and prices of the earliest optional call or redemption. There may be other call provisions at varying prices at later dates. Certain mortgage-backed securities may be subject to periodic principal paydowns.  
(3) The ratings disclosed are the lowest of Standard & Poor’s Group (“Standard & Poor’s”), Moody’s Investors Service, Inc. (“Moody’s”) or Fitch, Inc. (“Fitch”) rating. Ratings below BBB by Standard & Poor’s, Baa by Moody’s or BBB by Fitch are considered to be below investment grade. Holdings designated N/R are not rated by any of these national rating agencies.  
(4) Backed by an escrow or trust containing sufficient U.S. Government or U.S. Government agency securities, which ensure the timely payment of principal and interest.  
(5) Investment, or portion of investment, has been pledged to collateralize the net payment obligations for investments in inverse floating rate transactions.  
(6) Step-up coupon bond, a bond with a coupon that increases ("steps up"), usually at regular intervals, while the bond is outstanding. The rate shown is the coupon as of the end of the reporting period.  
(7) Defaulted security. A security whose issuer has failed to fully pay principal and/or interest when due, or is under the protection of bankruptcy.  
(8) MuniFund Preferred Shares, net of deferred offering costs as a percentage of Total Investments is 7.5%.  
(9) Variable Rate Demand Preferred Shares, net of deferred offering costs as a percentage of Total Investments is 26.2%.  
144A Investment is exempt from registration under Rule 144A of the Securities Act of 1933, as amended. These investments may only be resold in transactions exempt from registration, which are normally those transactions with qualified institutional buyers.  
ETM Escrowed to maturity  
IF Inverse floating rate security issued by a tender option bond (“TOB”) trust, the interest rate on which varies inversely with the Securities Industry Financial Markets Association (SIFMA) short-term rate, which resets weekly, or a similar short-term rate, and is reduced by the expenses related to the TOB trust.  
UB Underlying bond of an inverse floating rate trust reflected as a financing transaction. See Notes to Financial Statements, Note 3  –  Portfolio Securities and Investments in Derivatives. Inverse Floating Rate Securities for more information.  
48