0001454741falseN-CSRSThe shares of the Fund often trade at a discount or premium to their net asset value. The discount or premium may vary over time and may be higher or lower than what is quoted in this report. For up-to-date premium/discount information, please refer to https://funds.eatonvance.com/closed-end-fund-prices.php. 0001454741 2022-11-25 2022-11-25 0001454741 ck0001454741:CommonSharesMember 2022-09-30 2022-09-30 xbrli:shares xbrli:pure
 
 
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
 
 
Form
N-CSR
 
 
CERTIFIED SHAREHOLDER REPORT OF REGISTERED
MANAGEMENT INVESTMENT COMPANIES
Investment Company Act File Number:
811-22269
 
 
Eaton Vance National Municipal Opportunities Trust
(Exact Name of Registrant as Specified in Charter)
 
 
Two International Place, Boston, Massachusetts 02110
(Address of Principal Executive Offices)
 
 
Deidre E. Walsh
Two International Place, Boston, Massachusetts 02110
(Name and Address of Agent for Services)
(617)
482-8260
(Registrant’s Telephone Number)
March 31
Date of Fiscal Year End
September 30, 2022
Date of Reporting Period
 
 
 
 
 

Item 1.
Reports to Stockholders
 


Eaton Vance
National Municipal Opportunities Trust (EOT)
Semiannual Report
September 30, 2022



Commodity Futures Trading Commission Registration.
The Commodity Futures Trading Commission (“CFTC”) has adopted regulations that subject registered investment companies and advisers to regulation by the CFTC if a fund invests more than a prescribed level of its assets in certain CFTC-regulated instruments (including futures, certain options and swap agreements) or markets itself as providing investment exposure to such instruments. The investment adviser has claimed an exclusion from the definition of “commodity pool operator” under the Commodity Exchange Act with respect to its management of the Fund. Accordingly, neither the Fund nor the adviser with respect to the operation of the Fund is subject to CFTC regulation. Because of its management of other strategies, the Fund’s adviser is registered with the CFTC as a commodity pool operator. The adviser is also registered as a commodity trading advisor.
Fund shares are not insured by the FDIC and are not deposits or other obligations of, or guaranteed by, any depository institution. Shares are subject to investment risks, including possible loss of principal invested.


Semiannual Report
September 30, 2022
Eaton Vance
National Municipal Opportunities Trust


Table of Contents
Eaton Vance
National Municipal Opportunities Trust
September 30, 2022
Performance

Portfolio Manager(s)
Cynthia J. Clemson and William J. Delahunty, Jr., CFA
% Average Annual Total Returns
1,2
Inception Date
Six Months
One Year
Five Years
Ten Years
Fund at NAV 05/29/2009 (11.72)% (17.94)% (0.20)% 2.11%
Fund at Market Price (11.82) (27.72) (1.93) 1.38

Bloomberg Municipal Bond Index (6.30)% (11.50)% 0.59% 1.79%
% Premium/Discount to NAV
3
 
  (5.19)%
Distributions
4
 
Total Distributions per share for the period $0.375
Distribution Rate at NAV 4.32%
Taxable-Equivalent Distribution Rate at NAV 7.30
Distribution Rate at Market Price 4.56
Taxable-Equivalent Distribution Rate at Market Price 7.70
% Total Leverage
5
 
Residual Interest Bond (RIB) Financing 12.69%
See Endnotes and Additional Disclosures in this report.
Past performance is no guarantee of future results. Returns are historical and are calculated net of management fees and other expenses by determining the percentage change in net asset value (NAV) or market price (as applicable) with all distributions reinvested in accordance with the Fund’s Dividend Reinvestment Plan. Furthermore, returns do not reflect the deduction of taxes that shareholders may have to pay on Fund distributions or upon the sale of Fund shares. Performance at market price will differ from performance at NAV due to variations in the Fund’s market price versus NAV, which may reflect factors such as fluctuations in supply and demand for Fund shares, changes in Fund distributions, shifting market expectations for the Fund’s future returns and distribution rates, and other considerations affecting the trading prices of closed-end funds. Investment return and principal value will fluctuate so that shares, when sold, may be worth more or less than their original cost. Performance for periods less than or equal to one year is cumulative. Performance is for the stated time period only; due to market volatility, current Fund performance may be lower or higher than the quoted return. For performance as of the most recent month-end, please refer to eatonvance.com.
2


Table of Contents
Eaton Vance
National Municipal Opportunities Trust
September 30, 2022
Fund Profile

Credit Quality (% of total investments)
1,2
Footnotes:
1
For purposes of the Fund’s rating restrictions, ratings are based on Moody’s Investors Service, Inc. (“Moody’s”), S&P Global Ratings (“S&P”) or Fitch Ratings (“Fitch”), as applicable. If securities are rated differently by the ratings agencies, the highest rating is applied. Ratings, which are subject to change, apply to the creditworthiness of the issuers of the underlying securities and not to the Fund or its shares. Credit ratings measure the quality of a bond based on the issuer’s creditworthiness, with ratings ranging from AAA, being the highest, to D, being the lowest based on S&P’s measures. Ratings of BBB or higher by S&P or Fitch (Baa or higher by Moody’s) are considered to be investment-grade quality. Credit ratings are based largely on the ratings agency’s analysis at the time of rating. The rating assigned to any particular security is not necessarily a reflection of the issuer’s current financial condition and does not necessarily reflect its assessment of the volatility of a security’s market value or of the liquidity of an investment in the security. Holdings designated as “Not Rated” (if any) are not rated by the national ratings agencies stated above.
2
The chart includes the municipal bonds held by a trust that issues residual interest bonds, consistent with the Portfolio of Investments.
3


Table of Contents
Eaton Vance
National Municipal Opportunities Trust
September 30, 2022
Endnotes and Additional Disclosures

1
Bloomberg Municipal Bond Index is an unmanaged index of municipal bonds traded in the U.S. Unless otherwise stated, index returns do not reflect the effect of any applicable sales charges, commissions, expenses, taxes or leverage, as applicable. It is not possible to invest directly in an index.
2
Performance results reflect the effects of leverage.
3
The shares of the Fund often trade at a discount or premium to their net asset value. The discount or premium may vary over time and may be higher or lower than what is quoted in this report. For up-to-date premium/discount information, please refer to https://funds.eatonvance.com/closed-end-fund-prices.php.
4
The Distribution Rate is based on the Fund’s last regular distribution per share in the period (annualized) divided by the Fund’s NAV or market price at the end of the period. The Fund’s distributions may be comprised of amounts characterized for federal income tax purposes as tax-exempt income, qualified and non-qualified ordinary dividends, capital gains and nondividend distributions, also known as return of capital. The Fund will determine the federal income tax character of distributions paid to a shareholder after the end of the calendar year. This is reported on the IRS form 1099-DIV and provided to the shareholder shortly after each year-end. For information about the tax character of distributions made in prior calendar years, please refer to Performance-Tax Character of Distributions on the Fund’s webpage available at eatonvance.com. The Fund’s distributions are determined by the investment adviser based on its current assessment of the Fund’s long-term return potential. Fund distributions may be affected by numerous factors including changes in Fund performance, the cost of financing for leverage, portfolio holdings, realized and projected returns, and other factors. As portfolio and market conditions change, the rate of distributions paid by the Fund could change. Taxable-
equivalent performance is based on the highest combined federal and state income tax rates, where applicable. Lower tax rates would result in lower tax-equivalent performance. Actual tax rates will vary depending on your income, exemptions and deductions. Rates do not include local taxes.
5
Fund employs RIB financing. The leverage created by RIB investments provides an opportunity for increased income but, at the same time, creates special risks (including the likelihood of greater price volatility). The cost of leverage rises and falls with changes in short-term interest rates. See “Floating Rate Notes Issued in Conjunction with Securities Held” in the notes to the financial statements for more information about RIB financing. RIB leverage represents the amount of Floating Rate Notes outstanding at period end as a percentage of Fund net assets plus Floating Rate Notes.
  Fund profile subject to change due to active management.
4


Table of Contents
Eaton Vance
National Municipal Opportunities Trust
September 30, 2022
Portfolio of Investments (Unaudited)

Corporate Bonds — 2.2%
Security
Principal
Amount
(000's omitted)
Value
Hospital — 0.8%
Montefiore Obligated Group, 4.287%, 9/1/50 $  3,240 $
  2,042,390
     
$  2,042,390
Insured - Hospital — 0.5%
Toledo Hospital, (AGM), 5.75%, 11/15/38 $  1,440 $
  1,315,243
     
$  1,315,243
Other — 0.9%
Morongo Band of Mission Indians, 7.00%, 10/1/39
(1)
$  2,430 $
  2,567,295
     
$  2,567,295
Total Corporate Bonds
(identified cost $7,739,053)
   
$  5,924,928
    
Tax-Exempt Municipal Obligations — 105.7%
Security
Principal
Amount
(000's omitted)
Value
Education — 2.0%
Arizona Industrial Development Authority, (Doral Academy of Nevada), 5.00%, 7/15/49
(1)
$    560 $    489,810
Arizona Industrial Development Authority, (Pinecrest Academy of Nevada), 4.00%, 7/15/50
(1)
     185     137,398
Capital Trust Agency, FL, (Florida Charter Educational Foundation, Inc.):
     
5.375%, 6/15/38
(1)
     210     196,955
5.375%, 6/15/48
(1)
     395     350,574
Capital Trust Agency, FL, (Liza Jackson Preparatory School, Inc.), 5.00%, 8/1/55      325     301,623
District of Columbia, (District of Columbia International School), 5.00%, 7/1/49      185     169,843
District of Columbia, (KIPP DC):
     
4.00%, 7/1/44      105      88,220
4.00%, 7/1/49      135     109,750
District of Columbia, (Rocketship DC Obligated Group):
     
5.00%, 6/1/56
(1)
   1,090     988,281
5.00%, 6/1/61
(1)
     355     315,336
Jacksonville, FL, (Jacksonville University), 5.00%, 6/1/53
(1)
   1,000     885,890
Public Finance Authority, WI, (North Carolina Leadership Academy), 5.00%, 6/15/54
(1)
     455     390,768
Public Finance Authority, WI, (Roseman University of Health Sciences):
     
4.00%, 4/1/52
(1)
     250      177,242
Security
Principal
Amount
(000's omitted)
Value
Education (continued)
Public Finance Authority, WI, (Roseman University of Health Sciences):
(continued)
     
5.00%, 4/1/40
(1)
$    655 $
    603,700
5.00%, 4/1/50
(1)
     175     153,058
Yonkers Economic Development Corp., NY, (Lamartine/Warburton, LLC - Charter School of Educational Excellence):
     
5.00%, 10/15/49       70      61,113
5.00%, 10/15/54      110      94,285
     
$  5,513,846
Electric Utilities — 5.5%
Burke County Development Authority, GA, (Oglethorpe Power Corp.), 4.125%, 11/1/45 $  5,750 $
  4,748,407
Hawaii Department of Budget and Finance, (Hawaiian Electric Co.), 3.20%, 7/1/39    1,520   1,172,072
Lower Colorado River Authority, TX, (LCRA Transmission Services Corp.), 5.50%, 5/15/47
(2)
   2,000   2,136,857
New York Power Authority, 4.00%, 11/15/60    2,000   1,698,300
Omaha Public Power District, NE, 5.00%, 2/1/47
(3)
   4,000   4,232,760
Philadelphia, PA, Gas Works Revenue, (LOC: TD Bank, N.A.), 2.50%, 8/1/31
(4)
   1,000   1,000,000
     
$ 14,988,396
Escrowed/Prerefunded — 3.2%
Central Texas Regional Mobility Authority, Prerefunded to 7/1/25, 5.00%, 1/1/45 $    750 $
    782,933
New Hope Cultural Education Facilities Finance Corp., TX, (CHF-Collegiate Housing Stephenville III, LLC - Tarleton State University), Prerefunded to 4/1/25, 5.00%, 4/1/47      445     462,359
San Joaquin Hills Transportation Corridor Agency, CA, Prerefunded to 1/15/25, 5.00%, 1/15/50    6,400   6,651,008
Southwestern Illinois Development Authority, (Memorial Group, Inc.), Prerefunded to 11/1/23, 7.25%, 11/1/33      770     801,285
     
$  8,697,585
General Obligations — 12.0%
Broward County School Board, FL, 5.00%, 7/1/51
(3)
$  5,000 $
  5,253,650
Chicago Board of Education, IL, 5.00%, 12/1/42    6,410   5,977,581
Chicago, IL, 5.50%, 1/1/49    5,000   5,033,600
Detroit, MI:
     
5.50%, 4/1/36      435     445,558
5.50%, 4/1/40      680     690,533
Illinois:
     
4.25%, 12/1/37    6,000   5,337,300
5.00%, 5/1/36    3,500   3,461,395
Jackson County School District No. 6, OR, 0.00%, 6/15/41      710      276,155
 
5
See Notes to Financial Statements.


Table of Contents
Eaton Vance
National Municipal Opportunities Trust
September 30, 2022
Portfolio of Investments (Unaudited) — continued

Security
Principal
Amount
(000's omitted)
Value
General Obligations (continued)
Texas, (SPA: State Street Bank and Trust Co.), 2.55%, 12/1/41
(4)
$  2,000 $
  2,000,000
Township High School District No. 203, IL, 2.00%, 12/15/33    2,430   1,889,422
Township of Freehold, NJ:
     
1.00%, 10/15/29      575     468,142
1.00%, 10/15/30    1,035     816,387
1.00%, 10/15/31      975     737,373
     
$ 32,387,096
Hospital — 10.9%
Albemarle County Economic Development Authority, VA, (Sentara Martha Jefferson Hospital), (SPA: TD Bank, N.A.), 2.58%, 10/1/48
(5)
$    985 $
    985,000
California Health Facilities Financing Authority, (St. Joseph Health System), Prerefunded to 7/1/23, 5.00%, 7/1/37      165     167,226
Camden County Improvement Authority, NJ, (Cooper Health System), 5.75%, 2/15/42      665     667,627
Chattanooga Health, Educational and Housing Facility Board, TN, (CommonSpirit Health), 4.00%, 8/1/44      670     556,603
Doylestown Hospital Authority, PA, (Doylestown Health), 4.00%, 7/1/45      300     211,176
Illinois Finance Authority, (Presence Health Network):
     
3.75%, 2/15/34    1,190   1,104,332
4.00%, 2/15/36    2,500   2,366,625
Illinois Finance Authority, (Rush University Medical Center), 4.00%, 11/15/39    1,000     906,150
Massachusetts Development Finance Agency, (Atrius Health):
     
4.00%, 6/1/49    1,555   1,605,195
5.00%, 6/1/39      255     278,600
Michigan Finance Authority, (Henry Ford Health System), 4.00%, 11/15/50    1,040     887,494
Montgomery County Higher Education and Health Authority, PA, (Thomas Jefferson University Obligated Group):
     
4.00%, 9/1/38    1,000     896,550
4.00%, 9/1/39    1,000     887,260
4.00%, 9/1/44    1,500   1,299,135
Muskingum County, OH, (Genesis HealthCare System Obligated Group), 5.00%, 2/15/48    1,000     864,420
New Hampshire Health and Education Facilities Authority, (Dartmouth-Hitchcock Obligated Group), 5.00%, 8/1/59    2,000   1,923,840
New Jersey Economic Development Authority, (Cooper Health System), (LOC: TD Bank, N.A.), 2.55%, 11/1/38
(4)
   2,200   2,200,000
New York Dormitory Authority, (Catholic Health System Obligated Group), 4.00%, 7/1/45      675      482,659
Security
Principal
Amount
(000's omitted)
Value
Hospital (continued)
New York Dormitory Authority, (Northwell Health Obligated Group), 5.00%, 5/1/52 $  3,000 $
  2,970,690
New York Dormitory Authority, (Orange Regional Medical Center), 5.00%, 12/1/35
(1)
     900     847,782
Tarrant County Cultural Education Facilities Finance Corp., TX, (Baylor Scott & White Health):
     
5.00%, 11/15/45
(3)
   3,975   3,975,835
5.00%, 11/15/45        5       5,001
Tarrant County Cultural Education Facilities Finance Corp., TX, (Cook Children's Medical Center), 5.25%, 12/1/39
(3)
   3,500   3,537,800
     
$ 29,627,000
Housing — 2.0%
CSCDA Community Improvement Authority, CA, (City of Orange Portfolio), Essential Housing Revenue, Social Bonds, 3.00%, 3/1/57
(1)
$  2,455 $
  1,538,229
Maryland Economic Development Corp., (Morgan State University), Student Housing Revenue, 5.00%, 7/1/50      425     391,323
New York City Housing Development Corp., NY:
     
2.35%, 11/1/40    3,635   2,512,112
3.85%, 11/1/42    1,000     847,480
     
$  5,289,144
Industrial Development Revenue — 8.2%
Henderson, KY, (Pratt Paper, LLC), (AMT), 4.70%, 1/1/52
(1)
$  1,000 $
    889,530
Houston, TX, (United Airlines, Inc.), (AMT), 4.00%, 7/15/41    2,400   1,886,256
Maine Finance Authority, (Casella Waste Systems, Inc.), (AMT), 5.125% to 8/1/25 (Put Date), 8/1/35
(1)
     725     723,717
National Finance Authority, NH, (Covanta):
     
4.625%, 11/1/42
(1)
   1,415   1,216,235
(AMT), 4.875%, 11/1/42
(1)
   1,555   1,382,255
New Hampshire Business Finance Authority, (Casella Waste Systems, Inc.), (AMT), 2.95%, 4/1/29
(1)
     560     479,601
New Jersey Economic Development Authority, (Continental Airlines):
     
(AMT), 5.125%, 9/15/23      170     170,095
(AMT), 5.25%, 9/15/29    1,900   1,882,520
New York Liberty Development Corp., (Goldman Sachs Group, Inc.), 5.25%, 10/1/35    2,560   2,656,768
New York Transportation Development Corp., (Delta Air Lines, Inc. - LaGuardia Airport Terminals C&D Redevelopment):
     
(AMT), 4.375%, 10/1/45    2,765   2,323,706
(AMT), 5.00%, 10/1/40    1,640   1,540,747
Niagara Area Development Corp., NY, (Covanta), (AMT), 4.75%, 11/1/42
(1)
   2,000    1,748,440
 
6
See Notes to Financial Statements.


Table of Contents
Eaton Vance
National Municipal Opportunities Trust
September 30, 2022
Portfolio of Investments (Unaudited) — continued

Security
Principal
Amount
(000's omitted)
Value
Industrial Development Revenue (continued)
Phenix City Industrial Development Board, AL, (MeadWestvaco Coated Board), (AMT), 4.125%, 5/15/35 $  3,935 $
  3,808,686
Rockdale County Development Authority, GA, (Pratt Paper, LLC), (AMT), 4.00%, 1/1/38
(1)
   1,445   1,278,074
Vermont Economic Development Authority, (Casella Waste Systems, Inc.), (AMT), 4.625% to 4/3/28 (Put Date), 4/1/36
(1)
     145     138,126
     
$ 22,124,756
Insured - Education — 1.9%
New York Dormitory Authority, (School Districts Financing Program), (BAM), 5.00%, 10/1/42
(3)
$  5,000 $
  5,200,500
     
$  5,200,500
Insured - Electric Utilities — 1.2%
New York Power Authority, Green Transmission Revenue, (AGM), 4.00%, 11/15/47
(3)
$  3,750 $
  3,322,988
     
$  3,322,988
Insured - General Obligations — 1.1%
Atlantic City, NJ, (AGM), 4.00%, 3/1/42 $    145 $
    130,503
McHenry County Community Unit School District No. 12, IL, (AGM), 5.00%, 1/1/30    2,910   2,965,552
     
$  3,096,055
Insured - Lease Revenue/Certificates of Participation — 0.1%
Kentucky State University, Certificates of Participation, (BAM), 4.00%, 11/1/41 $    250 $
    226,938
     
$    226,938
Insured - Other Revenue — 0.2%
New York City Industrial Development Agency, NY, (Queens Baseball Stadium), (AGM), 3.00%, 1/1/46 $    840 $
    577,265
     
$    577,265
Insured - Special Tax Revenue — 5.5%
Metropolitan Pier and Exposition Authority, IL, (McCormick Place), (BAM), 4.00%, 12/15/42 $  2,000 $
  1,663,820
Miami-Dade County, FL, Professional Sports Franchise Facilities:
     
(AGC), 6.875%, 10/1/34    4,000   4,782,600
(AGC), 7.00%, 10/1/39    6,000   7,199,700
Tolomato Community Development District, FL:
     
(AGM), 3.75%, 5/1/39      720     620,150
(AGM), 3.75%, 5/1/40      855     722,809
     
$ 14,989,079
Security
Principal
Amount
(000's omitted)
Value
Insured - Transportation — 7.5%
Chicago, IL, (O'Hare International Airport), (AGM), 5.50%, 1/1/43 $    710 $
    711,754
Metropolitan Transportation Authority, NY, Green Bonds, (AGM), 4.00%, 11/15/48    6,225   5,510,619
New York Thruway Authority, (AGM), 3.00%, 1/1/46    4,895   3,573,448
New York Transportation Development Corp., (LaGuardia Airport Terminal B Redevelopment):
     
(AGM), (AMT), 4.00%, 7/1/35      460     423,655
(AGM), (AMT), 4.00%, 7/1/37    1,295   1,178,618
North Carolina Turnpike Authority, (Triangle Expressway System):
     
(AGC), 0.00%, 1/1/35    4,000   2,184,440
(AGC), 0.00%, 1/1/36   13,000   6,690,320
     
$ 20,272,854
Lease Revenue/Certificates of Participation — 1.9%
Baltimore, MD, (Harbor Point), 4.875%, 6/1/42 $    320 $
    299,597
New Jersey Economic Development Authority, (School Facilities Construction):
     
5.00%, 6/15/43      740     733,140
5.00%, 6/15/44    4,260   4,220,893
     
$  5,253,630
Other Revenue — 2.1%
Buckeye Tobacco Settlement Financing Authority, OH, 5.00%, 6/1/55 $  3,245 $
  2,729,791
Kalispel Tribe of Indians, WA, Series A, 5.25%, 1/1/38
(1)
     390     408,061
Military Installation Development Authority, UT, 4.00%, 6/1/41      500     385,795
Morongo Band of Mission Indians, CA, 5.00%, 10/1/42
(1)
     605     624,578
Salt Verde Financial Corp., AZ, Senior Gas Revenue, 5.00%, 12/1/37    1,605   1,581,374
     
$  5,729,599
Senior Living/Life Care — 9.3%
Atlantic Beach, FL, (Fleet Landing), 5.00%, 11/15/37 $  3,405 $
  3,411,742
Bexar County Health Facilities Development Corp., TX, (Army Retirement Residence Foundation):
     
5.00%, 7/15/37      850     809,786
5.00%, 7/15/42      700     648,515
California Public Finance Authority, (Enso Village), Green Bonds, 5.00%, 11/15/56
(1)
     100      80,205
Clackamas County Hospital Facility Authority, OR, (Rose Villa), 5.25%, 11/15/50      125     109,279
Colorado Health Facilities Authority, (Aberdeen Ridge), 5.00%, 5/15/58    1,110     836,196
District of Columbia, (Ingleside at Rock Creek), 5.00%, 7/1/32      185      174,216
 
7
See Notes to Financial Statements.


Table of Contents
Eaton Vance
National Municipal Opportunities Trust
September 30, 2022
Portfolio of Investments (Unaudited) — continued

Security
Principal
Amount
(000's omitted)
Value
Senior Living/Life Care (continued)
Harris County Cultural Education Facilities Finance Corp., TX, (Brazos Presbyterian Homes, Inc.):
     
5.75%, 1/1/28 $    165 $    165,322
6.375%, 1/1/33      345     346,056
Hawaii Department of Budget and Finance, (Kahala Senior Living Community, Inc.):
     
5.125%, 11/15/32      300     300,621
5.25%, 11/15/37      275     275,528
Iowa Finance Authority, (Lifespace Communities, Inc.), 4.125%, 5/15/38    1,500   1,236,030
Lee County Industrial Development Authority, FL, (Shell Point/Alliance Obligated Group), 5.00%, 11/15/39    1,800   1,806,300
Massachusetts Development Finance Agency, (Linden Ponds, Inc.):
     
5.00%, 11/15/33
(1)
     470     481,228
5.00%, 11/15/38
(1)
     310     311,008
Massachusetts Development Finance Agency, (NewBridge on the Charles, Inc.), 5.00%, 10/1/57
(1)
   1,650   1,676,185
Multnomah County Hospital Facilities Authority, OR, (Mirabella at South Waterfront), 5.00%, 10/1/24      360     360,918
Multnomah County Hospital Facilities Authority, OR, (Terwilliger Plaza), 4.00%, 12/1/51    1,480   1,108,979
National Finance Authority, NH, (The Vista):
     
5.25%, 7/1/39
(1)
     265     226,408
5.625%, 7/1/46
(1)
     360     308,959
5.75%, 7/1/54
(1)
     780     662,368
New Hope Cultural Education Facilities Finance Corp., TX, (Longhorn Village):
     
5.00%, 1/1/31    1,235   1,212,832
5.00%, 1/1/32    1,295   1,263,091
New Mexico Hospital Equipment Loan Council, (Haverland Carter Lifestyle Group):
     
5.00%, 7/1/32       80      74,658
5.00%, 7/1/33       50      46,227
5.00%, 7/1/34       55      50,450
Palm Beach County Health Facilities Authority, FL, (Green Cay Life Plan Village), 11.50%, 7/1/27
(1)
     750     725,678
Palm Beach County Health Facilities Authority, FL, (Toby & Leon Cooperman Sinai Residences of Boca Raton), 4.00%, 6/1/41      780     611,411
Public Finance Authority, WI, (Mary's Woods at Marylhurst), 5.25%, 5/15/37
(1)
     630     582,089
South Carolina Jobs-Economic Development Authority, (Kiawah Life Plan Village, Inc.), 8.75%, 7/1/25
(1)
     100     100,762
Tarrant County Cultural Education Facilities Finance Corp., TX, (MRC Stevenson Oaks), 6.625%, 11/15/41    1,335   1,250,575
Tempe Industrial Development Authority, AZ, (Friendship Village of Tempe), 4.00%, 12/1/38      535     424,292
Tempe Industrial Development Authority, AZ, (Mirabella at ASU), 6.00%, 10/1/37
(1)
     900      818,028
Security
Principal
Amount
(000's omitted)
Value
Senior Living/Life Care (continued)
Tulsa County Industrial Authority, OK, (Montereau, Inc.), 5.25%, 11/15/37 $  1,000 $
  1,005,720
Washington Housing Finance Commission, (Bayview Manor Homes), 5.00%, 7/1/51
(1)
   1,335   1,037,322
Washington Housing Finance Commission, (Transforming Age), 5.00%, 1/1/49
(1)
     305     243,524
Wisconsin Health and Educational Facilities Authority, (Oakwood Lutheran Senior Ministries), 4.00%, 1/1/47      500     377,745
     
$ 25,160,253
Special Tax Revenue — 6.5%
Maryland Economic Development Corp., (Port Covington), 4.00%, 9/1/50 $    140 $
    108,721
New York City Transitional Finance Authority, NY, Future Tax Revenue, 4.00%, 11/1/39    1,500   1,410,390
New York Dormitory Authority, Personal Income Tax Revenue, 4.00%, 3/15/45    1,000     898,190
New York Dormitory Authority, Sales Tax Revenue, 4.00%, 3/15/47    4,000   3,543,760
New York State Urban Development Corp., Personal Income Tax Revenue, 5.00%, 3/15/44
(3)
   6,900   7,105,136
Puerto Rico Sales Tax Financing Corp., 4.329%, 7/1/40    1,700   1,472,659
Tolomato Community Development District, FL, 3.25%, 5/1/40    1,200     889,524
Triborough Bridge and Tunnel Authority, NY, Green Bonds, 5.25%, 5/15/47
(3)
   2,125   2,250,184
     
$ 17,678,564
Student Loan — 0.5%
New Jersey Higher Education Student Assistance Authority, (AMT), 4.75%, 12/1/43 $  1,445 $
  1,381,304
     
$  1,381,304
Transportation — 22.4%
Atlanta, GA, Airport Revenue, (AMT), 4.00%, 7/1/38 $  5,000 $
  4,552,700
Chicago, IL, (O'Hare International Airport):
     
(AMT), 5.00%, 1/1/26    1,140   1,144,868
(AMT), 5.50%, 1/1/55
(3)
   1,500   1,529,925
Prerefunded to 1/1/23, (AMT), 5.00%, 1/1/25    1,345   1,350,743
Dallas and Fort Worth, TX, (Dallas/Fort Worth International Airport):
     
5.25%, 11/1/30    1,125   1,144,204
5.25%, 11/1/31    1,735   1,763,333
Florida Development Finance Corp., (Brightline Florida Passenger Rail), Green Bonds, (AMT), 7.375%, 1/1/49
(1)
   1,500   1,296,435
Grand Parkway Transportation Corp., TX, 5.125%, 10/1/43      875     871,955
Hawaii, Airports System Revenue, (AMT), 5.00%, 7/1/43
(3)
   3,750    3,748,612
 
8
See Notes to Financial Statements.


Table of Contents
Eaton Vance
National Municipal Opportunities Trust
September 30, 2022
Portfolio of Investments (Unaudited) — continued

Security
Principal
Amount
(000's omitted)
Value
Transportation (continued)
Houston, TX, (United Airlines, Inc.), (AMT), 5.00%, 7/1/29 $  2,060 $
  2,024,032
Illinois Toll Highway Authority, 5.00%, 1/1/41
(3)
   5,575   5,724,689
Metropolitan Transportation Authority, NY, Green Bonds, 5.25%, 11/15/55    1,520   1,498,918
Minneapolis-St. Paul Metropolitan Airports Commission, MN, 4.25%, 1/1/52    1,000     889,010
New Jersey Economic Development Authority, (The Goethals Bridge Replacement), (AMT), 5.125%, 1/1/34    1,250   1,253,400
New Jersey Transportation Trust Fund Authority, (Transportation System), 0.00%, 12/15/38   20,000   8,375,600
New Orleans Aviation Board, LA, (AMT), 5.00%, 1/1/48      750     734,197
New York Transportation Development Corp., (LaGuardia Airport Terminal B Redevelopment):
     
(AMT), 5.00%, 12/1/39    2,400   2,312,784
(AMT), 5.25%, 1/1/50    2,115   2,053,263
San Francisco City and County Airport Commission, CA, (San Francisco International Airport), (AMT), 5.00%, 5/1/48    6,000   5,999,880
South Jersey Transportation Authority, NJ, 5.25%, 11/1/52    1,000   1,026,420
Texas Private Activity Bond Surface Transportation Corp., (North Tarrant Express Managed Lanes Project):
     
4.00%, 12/31/37      140     122,051
4.00%, 12/31/38      260     224,331
4.00%, 12/31/39      135     115,383
5.00%, 12/31/35      180     179,811
Texas Transportation Commission, (Central Texas Turnpike System):
     
0.00%, 8/1/38      850     352,682
5.00%, 8/15/42      445     443,896
Triborough Bridge and Tunnel Authority, NY, 5.00%, 11/15/51
(3)
   5,000   5,142,600
Virginia Small Business Financing Authority, (95 Express Lanes, LLC), (AMT), 4.00%, 1/1/39      675     592,603
Virginia Small Business Financing Authority, (Elizabeth River Crossings Opco, LLC):
     
(AMT), 4.00%, 1/1/38    1,000     885,660
(AMT), 4.00%, 1/1/40    1,000     869,860
Virginia Small Business Financing Authority, (Transform 66 P3):
     
(AMT), 5.00%, 12/31/49    1,500   1,425,030
(AMT), 5.00%, 12/31/52    1,000     943,460
     
$ 60,592,335
Water and Sewer — 1.7%
Michigan Finance Authority, (Detroit Water and Sewerage Department), 5.00%, 7/1/34 $  2,070 $
  2,105,480
Security
Principal
Amount
(000's omitted)
Value
Water and Sewer (continued)
New York City Municipal Water Finance Authority, NY, (Water and Sewer System), 5.00%, 6/15/48 $    895 $
    929,493
Texas Water Development Board, 4.80%, 10/15/52
(2)
   1,500   1,509,030
     
$  4,544,003
Total Tax-Exempt Municipal Obligations
(identified cost $301,999,437)
   
$286,653,190
    
Taxable Municipal Obligations — 4.9%
Security
Principal
Amount
(000's omitted)
Value
General Obligations — 1.2%
Chicago, IL:
     
7.375%, 1/1/33 $  1,750 $
  1,801,975
7.781%, 1/1/35    1,400   1,480,248
     
$  3,282,223
Hospital — 1.5%
California Statewide Communities Development Authority, (Loma Linda University Medical Center), 6.00%, 12/1/24 $  4,000 $
  4,102,440
     
$  4,102,440
Insured - Education — 0.5%
Onondaga Civic Development Corp., NY, (Upstate Properties Development, Inc.), (BAM), 3.158%, 12/1/41 $  1,610 $
  1,195,312
     
$  1,195,312
Insured - Housing — 0.4%
Oregon Facilities Authority, (CHF-Ashland, LLC - Southern Oregon University), (AGM), 3.508%, 7/1/41 $  1,500 $
  1,158,480
     
$  1,158,480
Insured - Special Tax Revenue — 0.3%
Houston Uptown Development Authority, TX, Tax Increment Contract Revenue, (AGM), 3.464%, 9/1/40 $  1,160 $
    888,096
     
$    888,096
Special Tax Revenue — 0.5%
American Samoa Economic Development Authority:
     
2.47%, 9/1/24
(1)
$    475 $
    449,497
 
9
See Notes to Financial Statements.


Table of Contents
Eaton Vance
National Municipal Opportunities Trust
September 30, 2022
Portfolio of Investments (Unaudited) — continued

Security
Principal
Amount
(000's omitted)
Value
Special Tax Revenue (continued)
American Samoa Economic Development Authority:

(continued)
     
3.72%, 9/1/27
(1)
$  1,115 $    984,534
     
$  1,434,031
Transportation — 0.5%
Maryland Economic Development Corp., (Seagirt Marine Terminal), 4.75%, 6/1/42 $  1,500 $  1,289,625
     
$  1,289,625
Total Taxable Municipal Obligations
(identified cost $14,559,798)
   
$ 13,350,207
Total Investments — 112.8%
(identified cost $324,298,288)
   
$305,928,325
Other Assets, Less Liabilities — (12.8)%    
$(34,833,358)
Net Assets — 100.0%    
$271,094,967
The percentage shown for each investment category in the Portfolio of Investments is based on net assets.
(1)
Security exempt from registration under Rule 144A of the Securities Act of 1933, as amended. These securities may be sold in certain transactions in reliance on an exemption from registration (normally to qualified institutional buyers). At September 30, 2022, the aggregate value of these securities is $28,515,165 or 10.5% of the Trust's net assets.
(2)
When-issued security.
(3)
Security represents the municipal bond held by a trust that issues residual interest bonds (see Note 1G).
(4)
Variable rate demand obligation that may be tendered at par on any day for payment the lesser of 5 business days or 7 calendar days. The stated interest rate, which generally resets weekly, is determined by the remarketing agent and represents the rate in effect at September 30, 2022.
(5)
Variable rate demand obligation that may be tendered at par on any day for payment the same or next business day. The stated interest rate, which generally resets daily, is determined by the remarketing agent and represents the rate in effect at September 30, 2022.
At September 30, 2022, the concentration of the Trust’s investments in the various states and territories, determined as a percentage of total investments, is as follows:
New York 21.5%
Illinois 14.8%
Others, representing less than 10% individually 61.8%
    
The Trust invests primarily in debt securities issued by municipalities. The ability of the issuers of the debt securities to meet their obligations may be affected by economic developments in a specific industry or municipality. At September 30, 2022, 17.1% of total investments are backed by bond insurance of various financial institutions and financial guaranty assurance agencies. The aggregate percentage insured by an individual financial institution or financial guaranty assurance agency ranged from 2.7% to 7.6% of total investments.
Abbreviations:
AGC – Assured Guaranty Corp.
AGM – Assured Guaranty Municipal Corp.
AMT – Interest earned from these securities may be considered a tax preference item for purposes of the Federal Alternative Minimum Tax.
BAM – Build America Mutual Assurance Co.
LOC – Letter of Credit
SPA – Standby Bond Purchase Agreement
 
10
See Notes to Financial Statements.


Table of Contents
Eaton Vance
National Municipal Opportunities Trust
September 30, 2022
Statement of Assets and Liabilities (Unaudited)

 
September 30, 2022
Assets  
Investments, at value (identified cost $324,298,288) $305,928,325
Cash 3,219,357
Interest receivable 4,360,528
Receivable for investments sold 3,213,589
Due from broker for floating rate notes issued 3,900,000
Total assets
$320,621,799
Liabilities  
Payable for floating rate notes issued $
39,384,811
Payable for investments purchased 5,897,669
Payable for when-issued securities 3,634,800
Payable to affiliate:  
Investment adviser and administrative fee 157,585
Interest expense and fees payable 339,435
Accrued expenses 112,532
Total liabilities
$
49,526,832
Net Assets
$271,094,967
Sources of Net Assets  
Common shares, $0.01 par value, unlimited number of shares authorized $
156,249
Additional paid-in capital 298,400,478
Accumulated loss (27,461,760)
Net Assets
$271,094,967
Common Shares Issued and Outstanding 15,624,921
Net Asset Value Per Common Share  
Net assets ÷ common shares issued and outstanding
$
17.35
11
See Notes to Financial Statements.


Table of Contents
Eaton Vance
National Municipal Opportunities Trust
September 30, 2022
Statement of Operations (Unaudited)

 
Six Months Ended
 
September 30, 2022
Investment Income  
Interest income $
6,998,787
Total investment income
$
6,998,787
Expenses  
Investment adviser and administrative fee $
978,175
Trustees’ fees and expenses 12,465
Custodian fee 35,523
Transfer and dividend disbursing agent fees 9,097
Legal and accounting services 38,739
Printing and postage 19,965
Interest expense and fees 254,162
Miscellaneous 34,882
Total expenses
$
1,383,008
Net investment income
$
5,615,779
Realized and Unrealized Gain (Loss)  
Net realized gain (loss):  
Investment transactions $
(6,536,759)
Net realized loss
$
(6,536,759)
Change in unrealized appreciation (depreciation):  
Investments $
(35,756,841)
Net change in unrealized appreciation (depreciation)
$(35,756,841)
Net realized and unrealized loss
$(42,293,600)
Net decrease in net assets from operations
$(36,677,821)
12
See Notes to Financial Statements.


Table of Contents
Eaton Vance
National Municipal Opportunities Trust
September 30, 2022
Statements of Changes in Net Assets

 
Six Months Ended
September 30, 2022
(Unaudited)
Year Ended
March 31, 2022
Increase (Decrease) in Net Assets    
From operations:    
Net investment income $
5,615,779
$
11,362,408
Net realized loss (6,536,759) (263,133)
Net change in unrealized appreciation (depreciation) (35,756,841) (25,612,627)
Net decrease in net assets from operations
$
(36,677,821)
$
(14,513,352)
Distributions to shareholders
$
(5,859,278)
$
(11,678,281)
Capital share transactions:    
Proceeds from shelf offering, net of offering costs (see Note 5) $
$
6,535,543
Reinvestment of distributions 6,744 103,211
Net increase in net assets from capital share transactions
$
6,744
$
6,638,754
Net decrease in net assets
$
(42,530,355)
$
(19,552,879)
Net Assets    
At beginning of period $
313,625,322
$
333,178,201
At end of period
$271,094,967
$313,625,322
13
See Notes to Financial Statements.


Table of Contents
Eaton Vance
National Municipal Opportunities Trust
September 30, 2022
Financial Highlights

 
Six Months Ended
September 30, 2022
(Unaudited)
Year Ended March 31,
   
2022
2021
2020
2019
2018
Net asset value — Beginning of period $
20.070
$
21.730
$
20.530
$
21.090
$
21.320
$
21.700
Income (Loss) From Operations            
Net investment income
(1)
$
0.359
$
0.733
$
0.780
$
0.835
$
0.955
$
0.986
Net realized and unrealized gain (loss) (2.704) (1.652) 1.183 (0.412) (0.057) (0.213)
Total income (loss) from operations
$
(2.345)
$
(0.919)
$
1.963
$
0.423
$
0.898
$
0.773
Less Distributions            
From net investment income $
(0.375)
$
(0.753)
$
(0.764)
$
(0.841)
$
(1.021)
$
(1.031)
From net realized gain (0.078) (0.107) (0.122)
Tax return of capital (0.065)
Total distributions
$
(0.375)
$
(0.753)
$
(0.764)
$
(0.984)
$
(1.128)
$
(1.153)
Premium from common shares sold through shelf offering (see Note 5)
(1)
$
$
0.012
$
0.001
$
0.001
$
$
Net asset value — End of period
$
17.350
$
20.070
$
21.730
$
20.530
$
21.090
$
21.320
Market value — End of period
$
16.450
$
19.050
$
22.500
$
19.500
$
21.120
$
20.670
Total Investment Return on Net Asset Value
(2)
(11.72)%
(3)
(4.36)%
9.87%
1.90%
4.54%
3.59%
Total Investment Return on Market Value
(2)
(11.82)%
(3)
(12.33)%
19.77%
(3.35)%
7.98%
1.27%
Ratios/Supplemental Data            
Net assets, end of period (000’s omitted) $271,095 $313,625 $333,178 $314,321 $321,241 $324,587
Ratios (as a percentage of average daily net assets):            
Expenses excluding interest and fees 0.77%
(4)
0.73% 0.73% 0.75% 0.76% 0.76%
Interest and fee expense
(5)
0.17%
(4)
0.06% 0.05% 0.17% 0.22% 0.20%
Total expenses 0.94%
(4)
0.79% 0.78% 0.92% 0.98% 0.96%
Net investment income 3.80%
(4)
3.35% 3.67% 3.88% 4.55% 4.52%
Portfolio Turnover 21%
(3)
13% 13% 44% 17% 17%
(1)
Computed using average shares outstanding.
(2)
Returns are historical and are calculated by determining the percentage change in net asset value or market value with all distributions reinvested. Distributions are assumed to be reinvested at prices obtained under the Trust’s dividend reinvestment plan.
(3)
Not annualized.
(4)
Annualized.
(5)
Interest and fee expense relates to the liability for floating rate notes issued in conjunction with residual interest bond transactions (see Note 1G).
14
See Notes to Financial Statements.


Table of Contents
Eaton Vance
National Municipal Opportunities Trust
September 30, 2022
Notes to Financial Statements (Unaudited)

1  Significant Accounting Policies
Eaton Vance National Municipal Opportunities Trust (the Trust) is a Massachusetts business trust registered under the Investment Company Act of 1940, as amended (the 1940 Act), as a diversified, closed-end management investment company. The Trust’s primary investment objective is to provide current income exempt from regular federal income tax. The Trust will, as a secondary investment objective, seek to achieve capital appreciation.​​​​​​​
The following is a summary of significant accounting policies of the Trust. The policies are in conformity with accounting principles generally accepted in the United States of America (U.S. GAAP). The Trust is an investment company and follows accounting and reporting guidance in the Financial Accounting Standards Board (FASB) Accounting Standards Codification Topic 946.
A  Investment Valuation
The following methodologies are used to determine the market value or fair value of investments.
Debt Obligations.
Debt obligations are generally valued on the basis of valuations provided by third party pricing services, as derived from such services’ pricing models. Inputs to the models may include, but are not limited to, reported trades, executable bid and ask prices, broker/dealer quotations, prices or yields of securities with similar characteristics, interest rates, anticipated prepayments, benchmark curves or information pertaining to the issuer, as well as industry and economic events. The pricing services may use a matrix approach, which considers information regarding securities with similar characteristics to determine the valuation for a security. Short-term debt obligations purchased with a remaining maturity of sixty days or less for which a valuation from a third party pricing service is not readily available may be valued at amortized cost, which approximates fair value.
Fair Valuation.
In connection with Rule 2a-5 of the 1940 Act, which became effective September 8, 2022, the Trustees have designated the Trust’s investment adviser as its valuation designee. Investments for which valuations or market quotations are not readily available or are deemed unreliable are valued by the investment adviser, as valuation designee, at fair value using methods that most fairly reflect the security’s “fair value”, which is the amount that the Trust might reasonably expect to receive for the security upon its current sale in the ordinary course. Each such determination is based on a consideration of relevant factors, which are likely to vary from one pricing context to another. These factors may include, but are not limited to, the type of security, the existence of any contractual restrictions on the security’s disposition, the price and extent of public trading in similar securities of the issuer or of comparable companies or entities, quotations or relevant information obtained from broker/dealers or other market participants, information obtained from the issuer, analysts, and/or the appropriate stock exchange (for exchange-traded securities), an analysis of the company’s or entity’s financial statements, and an evaluation of the forces that influence the issuer and the market(s) in which the security is purchased and sold.
B  Investment Transactions and Related Income
Investment transactions for financial statement purposes are accounted for on a trade date basis. Realized gains and losses on investments sold are determined on the basis of identified cost. Interest income is recorded on the basis of interest accrued, adjusted for amortization of premium or accretion of discount.
C  Federal Taxes
The Trust’s policy is to comply with the provisions of the Internal Revenue Code applicable to regulated investment companies and to distribute to shareholders each year substantially all of its taxable, if any, and tax-exempt net investment income, and all or substantially all of its net realized capital gains. Accordingly, no provision for federal income or excise tax is necessary. The Trust intends to satisfy conditions which will enable it to designate distributions from the interest income generated by its investments in non-taxable municipal securities, which are exempt from regular federal income tax when received by the Trust, as exempt-interest dividends. The portion of such interest, if any, earned on private activity bonds issued after August 7, 1986, may be considered a tax preference item to shareholders.
As of September 30, 2022, the Trust had no uncertain tax positions that would require financial statement recognition, de-recognition, or disclosure. The Trust files a U.S. federal income tax return annually after its fiscal year-end, which is subject to examination by the Internal Revenue Service for a period of three years from the date of filing.
D  Legal Fees
Legal fees and other related expenses incurred as part of negotiations of the terms and requirement of capital infusions, or that are expected to result in the restructuring of, or a plan of reorganization for, an investment are recorded as realized losses. Ongoing expenditures to protect or enhance an investment are treated as operating expenses.
E  Use of Estimates
The preparation of the financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of income and expense during the reporting period. Actual results could differ from those estimates.
F  Indemnifications
Under the Trust's organizational documents, its officers and Trustees may be indemnified against certain liabilities and expenses arising out of the performance of their duties to the Trust. Under Massachusetts law, if certain conditions prevail, shareholders of a Massachusetts business trust (such as the Trust) could be deemed to have personal liability for the obligations of the Trust. However, the Trust’s Declaration of Trust contains an express disclaimer of liability on the part of Trust shareholders and the By-laws provide that the Trust shall assume, upon request by the shareholder, the defense on behalf of any Trust shareholders. Moreover, the By-laws also provide for indemnification out of Trust property of any shareholder held personally liable solely by reason of being or having been a shareholder for all loss or expense arising from such liability. Additionally, in the normal course of business, the Trust enters into agreements with service providers that may contain indemnification clauses. The Trust’s maximum exposure under these arrangements is unknown as this would involve future claims that may be made against the Trust that have not yet occurred.
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Table of Contents
Eaton Vance
National Municipal Opportunities Trust
September 30, 2022
Notes to Financial Statements (Unaudited) — continued

G  Floating Rate Notes Issued in Conjunction with Securities Held
The Trust may invest in residual interest bonds, also referred to as inverse floating rate securities, whereby the Trust may sell a variable or fixed rate bond for cash to a Special-Purpose Vehicle (the SPV), (which is generally organized as a trust), while at the same time, buying a residual interest in the assets and cash flows of the SPV. The bond is deposited into the SPV with the same CUSIP number as the bond sold to the SPV by the Trust, and which may have been, but is not required to be, the bond purchased from the Trust (the Bond). The SPV also issues floating rate notes (Floating Rate Notes) which are sold to third-parties. The residual interest bond held by the Trust gives the Trust the right (1) to cause the holders of the Floating Rate Notes to generally tender their notes at par, and (2) to have the Bond held by the SPV transferred to the Trust, thereby terminating the SPV. Should the Trust exercise such right, it would generally pay the SPV the par amount due on the Floating Rate Notes and exchange the residual interest bond for the underlying Bond. Pursuant to generally accepted accounting principles for transfers and servicing of financial assets and extinguishment of liabilities, the Trust accounts for the transaction described above as a secured borrowing by including the Bond in its Portfolio of Investments and the Floating Rate Notes as a liability under the caption “Payable for floating rate notes issued” in its Statement of Assets and Liabilities. The Floating Rate Notes have interest rates that generally reset weekly and their holders have the option to tender their notes to the SPV for redemption at par at each reset date. Accordingly, the fair value of the payable for floating rate notes issued approximates its carrying value. If measured at fair value, the payable for floating rate notes would have been considered as Level 2 in the fair value hierarchy (see Note 6) at September 30, 2022. Interest expense related to the Trust’s liability with respect to Floating Rate Notes is recorded as incurred. The SPV may be terminated by the Trust, as noted above, or by the occurrence of certain termination events as defined in the trust agreement, such as a downgrade in the credit quality of the underlying Bond, bankruptcy of or payment failure by the issuer of the underlying Bond, the inability to remarket Floating Rate Notes that have been tendered due to insufficient buyers in the market, or the failure by the SPV to obtain renewal of the liquidity agreement under which liquidity support is provided for the Floating Rate Notes up to one year. At September 30, 2022, the amount of the Trust’s Floating Rate Notes outstanding and the related collateral were $39,384,811 and $51,024,679, respectively. The range of interest rates on the Floating Rate Notes outstanding at September 30, 2022 was 2.49% to 2.58%. For the six months ended September 30, 2022, the Trust’s average settled Floating Rate Notes outstanding and the average interest rate (annualized) including fees were $29,868,060 and 1.70%, respectively.
In certain circumstances, the Trust may enter into shortfall and forbearance agreements with brokers by which the Trust agrees to reimburse the broker for the difference between the liquidation value of the Bond held by the SPV and the liquidation value of the Floating Rate Notes, as well as any shortfalls in interest cash flows. The Trust had no shortfalls as of September 30, 2022.
The Trust may also purchase residual interest bonds in a secondary market transaction without first owning the underlying bond. Such transactions are not required to be treated as secured borrowings. Shortfall agreements, if any, related to residual interest bonds purchased in a secondary market transaction are disclosed in the Portfolio of Investments.
The Trust’s investment policies and restrictions expressly permit investments in residual interest bonds. Such bonds typically offer the potential for yields exceeding the yields available on fixed rate bonds with comparable credit quality and maturity. These securities tend to underperform the market for fixed rate bonds in a rising long-term interest rate environment, but tend to outperform the market for fixed rate bonds when long-term interest rates decline. The value and income of residual interest bonds are generally more volatile than that of a fixed rate bond. The Trust’s investment policies do not allow the Trust to borrow money except as permitted by the 1940 Act. Management believes that the Trust’s restrictions on borrowing money and issuing senior securities (other than as specifically permitted) do not apply to Floating Rate Notes issued by the SPV and included as a liability in the Trust’s Statement of Assets and Liabilities. As secured indebtedness issued by an SPV, Floating Rate Notes are distinct from the borrowings and senior securities to which the Trust’s restrictions apply. Residual interest bonds held by the Trust are securities exempt from registration under Rule 144A of the Securities Act of 1933.
H  When-Issued Securities and Delayed Delivery Transactions
The Trust may purchase securities on a delayed delivery or when-issued basis. Payment and delivery may take place after the customary settlement period for that security. At the time the transaction is negotiated, the price of the security that will be delivered is fixed. The Trust maintains cash and/or security positions for these commitments such that sufficient liquid assets will be available to make payments upon settlement. Securities purchased on a delayed delivery or when-issued basis are marked-to-market daily and begin earning interest on settlement date. Such security purchases are subject to the risk that when delivered they will be worth less than the agreed upon payment price. Losses may also arise if the counterparty does not perform under the contract.
I  Interim Financial Statements
The interim financial statements relating to September 30, 2022 and for the six months then ended have not been audited by an independent registered public accounting firm, but in the opinion of the Trust’s management, reflect all adjustments, consisting only of normal recurring adjustments, necessary for the fair presentation of the financial statements.
2  Distributions to Shareholders and Income Tax Information
The Trust intends to make monthly distributions of net investment income to common shareholders. In addition, at least annually, the Trust intends to distribute all or substantially all of its net realized capital gains. Distributions are recorded on the ex-dividend date. Distributions to shareholders are determined in accordance with income tax regulations, which may differ from U.S. GAAP. As required by U.S. GAAP, only distributions in excess of tax basis earnings and profits are reported in the financial statements as a return of capital. Permanent differences between book and tax accounting relating to distributions are reclassified to paid-in capital. For tax purposes, distributions from short-term capital gains are considered to be from ordinary income.
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Eaton Vance
National Municipal Opportunities Trust
September 30, 2022
Notes to Financial Statements (Unaudited) — continued

At March 31, 2022, the Trust, for federal income tax purposes, had deferred capital losses of $3,770,064 which would reduce its taxable income arising from future net realized gains on investment transactions, if any, to the extent permitted by the Internal Revenue Code, and thus would reduce the amount of distributions to shareholders, which would otherwise be necessary to relieve the Trust of any liability for federal income or excise tax. The deferred capital losses are treated as arising on the first day of the Trust’s next taxable year and retain the same short-term or long-term character as when originally deferred. Of the deferred capital losses at March 31, 2022, $3,770,064 are short-term.
The cost and unrealized appreciation (depreciation) of investments of the Trust at September 30, 2022, as determined on a federal income tax basis, were as follows:
Aggregate cost
$
283,996,068
Gross unrealized appreciation $
7,585,383
Gross unrealized depreciation (25,037,937)
Net unrealized depreciation
$
(17,452,554)
3  Investment Adviser and Administrative Fee and Other Transactions with Affiliates
The investment adviser and administrative fee is earned by Eaton Vance Management (EVM), an indirect, wholly-owned subsidiary of Morgan Stanley, as compensation for investment advisory and administrative services rendered to the Trust. The fee is computed at an annual rate as a percentage of the Trust’s average daily gross assets as follows and is payable monthly:
Average Daily Gross Assets
Annual Fee Rate
Up to and including $1.5 billion 0.60%
Over $1.5 billion 0.59%
Gross assets, as defined in the Trust’s investment advisory and administrative agreement with EVM, means total assets of the Trust, including any form of investment leverage, minus all accrued expenses incurred in the normal course of operations, but not excluding any liabilities or obligations attributable to investment leverage obtained through (i) indebtedness of any type (including, without limitation, borrowing through a credit facility or the issuance of debt securities), (ii) the issuance of preferred stock or other similar preference securities, (iii) the reinvestment of collateral received for securities loaned in accordance with the Trust’s investment objectives and policies, and/or (iv) any other means. For purposes of this calculation, gross assets represent net assets plus the amount payable by the Trust to floating-rate note holders. For the six months ended September 30, 2022, the investment adviser and administrative fee incurred by the Trust and the effective annual rate, as a percentage of average daily gross assets, were $978,175 and 0.60%, respectively.
Trustees and officers of the Trust who are members of EVM’s organization receive remuneration for their services to the Trust out of the investment adviser and administrative fee. Trustees of the Trust who are not affiliated with the investment adviser may elect to defer receipt of all or a percentage of their annual fees in accordance with the terms of the Trustees Deferred Compensation Plan. For the six months ended September 30, 2022, no significant amounts have been deferred. Certain officers and Trustees of the Fund are officers of EVM.
4  Purchases and Sales of Investments
Purchases and sales of investments, other than short-term obligations, aggregated $86,541,049 and $67,000,963, respectively, for the six months ended September 30, 2022.
5  Common Shares of Beneficial Interest and Shelf Offering
Common shares issued by the Trust pursuant to its dividend reinvestment plan for the six months ended September 30, 2022 and the year ended March 31, 2022 were 357 and 4,653, respectively.
In November 2013, the Board of Trustees initially approved a share repurchase program for the Trust. Pursuant to the reauthorization of the share repurchase program by the Board of Trustees in March 2019, the Trust is authorized to repurchase up to 10% of its common shares outstanding as of the last day of the prior calendar year at market prices when shares are trading at a discount to net asset value. The share repurchase program does not obligate the Trust to purchase a specific amount of shares. There were no repurchases of common shares by the Trust for the six months ended September 30, 2022 and the year ended March 31, 2022.
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Eaton Vance
National Municipal Opportunities Trust
September 30, 2022
Notes to Financial Statements (Unaudited) — continued

Pursuant to a registration statement filed with the SEC, the Trust is authorized to issue up to an additional 2,285,745 common shares through an equity shelf offering program (the "shelf offering"). Under the shelf offering, the Trust, subject to market conditions, may raise additional capital from time to time and in varying amounts and offering methods at a net price at or above the Trust's net asset value per common share. During the six months ended September 30, 2022, there were no shares sold by the Trust pursuant to its shelf offering. During the year ended March 31, 2022, the Trust sold 287,223 common shares and received proceeds (net of offering costs) of $6,535,543 through its shelf offering. The net proceeds in excess of the net asset value of the shares sold was $180,791 for the year ended March 31, 2022. Offering costs (other than the applicable sales commissions) incurred in connection with the shelf offering were borne directly by EVM. Eaton Vance Distributors, Inc. (EVD), an affiliate of EVM, is the distributor of the Trust's shares and is entitled to receive a sales commission from the Trust of 1.00% of the gross sales price per share, a portion of which is re-allowed to sales agents. The Trust was informed that the sales commissions retained by EVD during the year ended March 31, 2022 were $13,203.
6  Fair Value Measurements
Under generally accepted accounting principles for fair value measurements, a three-tier hierarchy to prioritize the assumptions, referred to as inputs, is used in valuation techniques to measure fair value. The three-tier hierarchy of inputs is summarized in the three broad levels listed below.
Level 1 – quoted prices in active markets for identical investments
Level 2 – other significant observable inputs (including quoted prices for similar investments, interest rates, prepayment speeds, credit risk, etc.)
Level 3 – significant unobservable inputs (including a fund's own assumptions in determining the fair value of investments)
In cases where the inputs used to measure fair value fall in different levels of the fair value hierarchy, the level disclosed is determined based on the lowest level input that is significant to the fair value measurement in its entirety. The inputs or methodology used for valuing securities are not necessarily an indication of the risk associated with investing in those securities.
At September 30, 2022, the hierarchy of inputs used in valuing the Trust's investments, which are carried at value, were as follows:
Asset Description
Level 1
Level 2
Level 3
Total
Corporate Bonds $
 —
$
  5,924,928
$
 —
$
  5,924,928
Tax-Exempt Municipal Obligations  — 286,653,190  — 286,653,190
Taxable Municipal Obligations  —  13,350,207  —  13,350,207
Total Investments
$ —
$305,928,325
$ —
$305,928,325
7  Risks and Uncertainties
Pandemic Risk
An outbreak of respiratory disease caused by a novel coronavirus was first detected in China in late 2019 and subsequently spread internationally. This coronavirus has resulted in closing borders, enhanced health screenings, changes to healthcare service preparation and delivery, quarantines, cancellations, disruptions to supply chains and customer activity, as well as general concern and uncertainty. Health crises caused by outbreaks of disease, such as the coronavirus outbreak, may exacerbate other pre-existing political, social and economic risks and disrupt normal market conditions and operations. The impact of this outbreak has negatively affected the worldwide economy, as well as the economies of individual countries and industries, and could continue to affect the market in significant and unforeseen ways. Other epidemics and pandemics that may arise in the future may have similar effects. Any such impact could adversely affect the Trust's performance, or the performance of the securities in which the Trust invests.
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Eaton Vance
National Municipal Opportunities Trust
September 30, 2022
Board of Trustees’ Contract Approval

Overview of the Contract Review Process
The Investment Company Act of 1940, as amended (the “1940 Act”), provides, in substance, that the investment advisory agreement between a fund and its investment adviser will continue in effect from year-to-year only if its continuation is approved on an annual basis by a vote of the fund’s board of trustees, including a majority of the trustees who are not “interested persons” of the fund (“independent trustees”), cast in person at a meeting called for the purpose of considering such approval.
At a meeting held on June 8, 2022, the Boards of Trustees/Directors (collectively, the “Board”) that oversee the registered investment companies advised by Eaton Vance Management or its affiliate, Boston Management and Research (the “Eaton Vance Funds”), including a majority of the independent trustees (the “Independent Trustees”), voted to approve the continuation of existing investment advisory agreements and sub-advisory agreements
1
for each of the Eaton Vance Funds for an additional one-year period. The Board relied upon the affirmative recommendation of its Contract Review Committee, which is a committee exclusively comprised of Independent Trustees. Prior to making its recommendation, the Contract Review Committee reviewed information furnished by the adviser and sub-adviser to each of the Eaton Vance Funds (including information specifically requested by the Board) for a series of formal meetings held between April and June 2022. Members of the Contract Review Committee also considered information received at prior meetings of the Board and its committees, to the extent such information was relevant to the Contract Review Committee’s annual evaluation of the investment advisory agreements and sub-advisory agreements.
In connection with its evaluation of the investment advisory agreements and sub-advisory agreements, the Board considered various information relating to the Eaton Vance Funds. This included information applicable to all or groups of Eaton Vance Funds, which is referenced immediately below, and information applicable to the particular Eaton Vance Fund covered by this report (additional fund-specific information is referenced below under “Results of the Contract Review Process”). (For funds that invest through one or more underlying portfolios, references to “each fund” in this section may include information that was considered at the portfolio-level.)
Information about Fees, Performance and Expenses
• A report from an independent data provider comparing advisory and other fees paid by each fund to such fees paid by comparable funds, as identified by the independent data provider (“comparable funds”);
• A report from an independent data provider comparing each fund’s total expense ratio (and its components) to those of comparable funds;
• A report from an independent data provider comparing the investment performance of each fund (including, as relevant, total return data, income data, Sharpe ratios and information ratios) to the investment performance of comparable funds and, as applicable, benchmark indices, over various time periods;
• In certain instances, data regarding investment performance relative to customized groups of peer funds and blended indices identified by the adviser in consultation with the Portfolio Management Committee of the Board (a committee exclusively comprised of Independent Trustees);
•  Comparative information concerning the fees charged and services provided by the adviser and sub-adviser to each fund in managing other accounts (which may include other mutual funds, collective investment funds and institutional accounts) using investment strategies and techniques similar to those used in managing such fund(s), if any;
•  Profitability analyses with respect to the adviser and sub-adviser to each of the funds;
Information about Portfolio Management and Trading
•  Descriptions of the investment management services provided to each fund, as well as each of the funds’ investment strategies and policies;
• The procedures and processes used to determine the value of fund assets, including, when necessary, the determination of “fair value” and actions taken to monitor and test the effectiveness of such procedures and processes;
•  Information about the policies and practices of each fund’s adviser and sub-adviser with respect to trading, including their processes for seeking best execution of portfolio transactions;
•  Information about the allocation of brokerage transactions and the benefits, if any, received by the adviser and sub-adviser to each fund as a result of brokerage allocation, including, as applicable, information concerning the acquisition of research through client commission arrangements and policies with respect to “soft dollars”;
•  Data relating to the portfolio turnover rate of each fund and related information regarding active management in the context of particular strategies;
Information about each Adviser and Sub-adviser
•  Reports detailing the financial results and condition of the adviser and sub-adviser to each fund;
•  Information regarding the individual investment professionals whose responsibilities include portfolio management and investment research for the funds, and, for portfolio managers and certain other investment professionals, information relating to their responsibilities with respect to managing other mutual funds and investment accounts, as applicable;
1    
Not all Eaton Vance Funds have entered into a sub-advisory agreement with a sub-adviser. Accordingly, references to “sub-adviser” or “sub-advisory agreement” in this “Overview” section may not be applicable to the particular Eaton Vance Fund covered by this report. Following the “Overview” section, further information regarding the Board’s evaluation of a fund’s contractual arrangements is included under the “Results of the Contract Review Process” section.
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Table of Contents
Eaton Vance
National Municipal Opportunities Trust
September 30, 2022
Board of Trustees’ Contract Approval — continued

•  Information regarding the adviser’s and its parent company’s (Morgan Stanley’s) efforts to retain and attract talented investment professionals, including in the context of a particularly competitive marketplace for talent, as well as the ongoing unique environment presented by hybrid, remote and other alternative work arrangements;
• The Code of Ethics of the adviser and its affiliates and the sub-adviser of each fund, together with information relating to compliance with, and the administration of, such codes;
•  Policies and procedures relating to proxy voting, including regular reporting with respect to fund proxy voting activities;
•  Information regarding the handling of corporate actions and class actions, as well as information regarding litigation and other regulatory matters;
•  Information concerning the resources devoted to compliance efforts undertaken by the adviser and its affiliates and the sub-adviser of each fund, if any, including descriptions of their various compliance programs and their record of compliance;
•  Information concerning the business continuity and disaster recovery plans of the adviser and its affiliates and the sub-adviser of each fund, if any;
• A description of Eaton Vance Management’s and Boston Management and Research’s oversight of sub-advisers, including with respect to regulatory and compliance issues, investment management and other matters;
Other Relevant Information
•  Information regarding ongoing initiatives to further integrate and harmonize, where applicable, the investment management and other departments of the adviser and its affiliates with the overall investment management infrastructure of Morgan Stanley, in light of Morgan Stanley’s acquisition of Eaton Vance on March 1, 2021;
•  Information concerning the nature, cost and character of the administrative and other non-investment advisory services provided by Eaton Vance Management and its affiliates;
•  Information concerning oversight of the relationship with the custodian, subcustodians, fund accountants, and other third-party service providers by the adviser and/or administrator to each of the funds;
•  Information concerning efforts to implement policies and procedures with respect to various new regulations applicable to the funds, including Rule 12d1-4 (the Fund-of-Funds Rule), Rule 18f-4 (the Derivatives Rule) and Rule 2a-5 (the Fair Valuation Rule);
• For an Eaton Vance Fund structured as an exchange-listed closed-end fund, information concerning the benefits of the closed-end fund structure, as well as, where relevant, the closed-end fund’s market prices (including as compared to the closed-end fund’s net asset value (NAV)), trading volume data, continued use of auction preferred shares (where applicable), distribution rates and other relevant matters;
• The risks which the adviser and/or its affiliates incur in connection with the management and operation of the funds, including, among others, litigation, regulatory, entrepreneurial, and other business risks (and the associated costs of such risks); and
• The terms of each investment advisory agreement and sub-advisory agreement.
During the various meetings of the Board and its committees over the course of the year leading up to the June 8, 2022 meeting, the Trustees received information from portfolio managers and other investment professionals of the advisers and sub-advisers of the funds regarding investment and performance matters, and considered various investment and trading strategies used in pursuing the funds’ investment objectives. The Trustees also received information regarding risk management techniques employed in connection with the management of the funds. The Board and its committees evaluated issues pertaining to industry and regulatory developments, compliance procedures, fund governance and other issues with respect to the funds, and received and participated in reports and presentations provided by Eaton Vance Management, Boston Management and Research and fund sub-advisers, with respect to such matters. In addition to the formal meetings of the Board and its committees, the Independent Trustees held regular teleconferences to discuss, among other topics, matters relating to the continuation of investment advisory agreements and sub-advisory agreements.
The Contract Review Committee was advised throughout the contract review process by Goodwin Procter LLP, independent legal counsel for the Independent Trustees. The members of the Contract Review Committee, with the advice of such counsel, exercised their own business judgment in determining the material factors to be considered in evaluating each investment advisory agreement and sub-advisory agreement and the weight to be given to each such factor. The conclusions reached with respect to each investment advisory agreement and sub-advisory agreement were based on a comprehensive evaluation of all the information provided and not any single factor. Moreover, each member of the Contract Review Committee may have placed varying emphasis on particular factors in reaching conclusions with respect to each investment advisory agreement and sub-advisory agreement. In evaluating each investment advisory agreement and sub-advisory agreement, including the fee structures and other terms contained in such agreements, the members of the Contract Review Committee were also informed by multiple years of analysis and discussion with the adviser and sub-adviser to each of the Eaton Vance Funds.
Results of the Contract Review Process
Based on its consideration of the foregoing, and such other information it deemed relevant, including the factors and conclusions described below, the Contract Review Committee concluded that the continuation of the investment advisory and administrative agreement between Eaton Vance National Municipal Opportunities Trust (the “Fund”) and Eaton Vance Management (the “Adviser”), including its fee structure, is in the interests of shareholders and, therefore, recommended to the Board approval of the agreement. Based on the recommendation of the Contract Review Committee, the Board, including a majority of the Independent Trustees, voted to approve continuation of the investment advisory and administrative agreement for the Fund.
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Eaton Vance
National Municipal Opportunities Trust
September 30, 2022
Board of Trustees’ Contract Approval — continued

Nature, Extent and Quality of Services
In considering whether to approve the investment advisory and administrative agreement for the Fund, the Board evaluated the nature, extent and quality of services provided to the Fund by the Adviser.
The Board considered the Adviser’s management capabilities and investment processes in light of the types of investments held by the Fund, including the education, experience and number of investment professionals and other personnel who provide portfolio management, investment research, and similar services to the Fund, including recent changes to such personnel. In particular, the Board considered, where relevant, the abilities and experience of the Adviser’s investment professionals in analyzing factors such as credit risk, tax efficiency and special considerations relevant to investing in municipal obligations, Treasury securities and other securities backed by the U.S. government or its agencies. The Board considered the Adviser’s municipal bond team, which includes investment professionals and credit specialists who provide services to the Fund. The Board also took into account the resources dedicated to portfolio management and other services, the compensation methods of the Adviser and other factors, including the reputation and resources of the Adviser to recruit and retain highly qualified research, advisory and supervisory investment professionals. In addition, the Board considered the time and attention devoted to the Eaton Vance Funds, including the Fund, by senior management, as well as the infrastructure, operational capabilities and support staff in place to assist in the portfolio management and operations of the Fund, including the provision of administrative services. The Board also considered the business-related and other risks to which the Adviser or its affiliates may be subject in managing the Fund. The Board considered the deep experience of the Adviser and its affiliates with managing and operating funds organized as exchange-listed closed-end funds, such as the Fund. In this regard, the Board considered, among other things, the Adviser’s and its affiliates’ experience with implementing leverage arrangements, monitoring and assessing trading price discounts and premiums and adhering to the requirements of securities exchanges.
The Board considered the compliance programs of the Adviser and relevant affiliates thereof. The Board considered compliance and reporting matters regarding, among other things, personal trading by investment professionals, disclosure of portfolio holdings, late trading, frequent trading, portfolio valuation, business continuity and the allocation of investment opportunities. The Board also considered the responses of the Adviser and its affiliates to requests in recent years from regulatory authorities, such as the Securities and Exchange Commission and the Financial Industry Regulatory Authority.
The Board considered other administrative services provided or overseen by Eaton Vance Management and its affiliates, including transfer agency and accounting services. The Board evaluated the benefits to shareholders of investing in a fund that is a part of a large fund complex offering exposure to a variety of asset classes and investment disciplines.
After consideration of the foregoing factors, among others, the Board concluded that the nature, extent and quality of services provided by the Adviser, taken as a whole, are appropriate and consistent with the terms of the investment advisory and administrative agreement.
Fund Performance
The Board compared the Fund’s investment performance to that of comparable funds identified by an independent data provider (the peer group), as well as an appropriate benchmark index, and assessed the Fund’s performance on the basis of total return and current income return. The Board’s review included comparative performance data with respect to the Fund for the one-, three-, five- and ten-year periods ended December 31, 2021. The Board considered, among other things, the Adviser’s efforts to generate competitive levels of tax-exempt current income over time. In this regard, the Board noted that the performance of the Fund was lower than the median performance of the Fund’s peer group for the three-year period. The Board also noted that the performance of the Fund was higher than its benchmark index for the three-year period. The Board noted that the underperformance of the Fund relative to its peer group was attributable to the adverse impact of the Fund’s limited use of leverage relative to its peer group. On the basis of the foregoing and other relevant information provided by the Adviser in response to inquiries from the Contract Review Committee, the Board concluded that it would continue to monitor the Fund’s performance on the basis of total return and current income return.
Management Fees and Expenses
The Board considered contractual fee rates payable by the Fund for advisory and administrative services (referred to collectively as “management fees”). As part of its review, the Board considered the Fund’s management fees and total expense ratio for the one-year period ended December 31, 2021, as compared to those of comparable funds, before and after giving effect to any undertaking to waive fees or reimburse expenses. The Board also considered factors that had an impact on the Fund’s total expense ratio relative to comparable funds.
After considering the foregoing information, and in light of the nature, extent and quality of the services provided by the Adviser, the Board concluded that the management fees charged for advisory and related services are reasonable.
Profitability and “Fall-Out” Benefits
The Board considered the level of profits realized by the Adviser and relevant affiliates thereof in providing investment advisory and administrative services to the Fund and to all Eaton Vance Funds as a group. The Board considered the level of profits realized without regard to marketing support or other payments by the Adviser and its affiliates to third parties in respect of distribution or other services.
The Board concluded that, in light of the foregoing factors and the nature, extent and quality of the services rendered, the profits realized by the Adviser and its affiliates are deemed not to be excessive.
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Table of Contents
Eaton Vance
National Municipal Opportunities Trust
September 30, 2022
Board of Trustees’ Contract Approval — continued

The Board also considered direct or indirect fall-out benefits received by the Adviser and its affiliates in connection with their respective relationships with the Fund, including the benefits of research services that may be available to the Adviser as a result of securities transactions effected for the Fund and other investment advisory clients.
Economies of Scale
In reviewing management fees and profitability, the Board also considered the extent to which the Adviser and its affiliates, on the one hand, and the Fund, on the other hand, can expect to realize benefits from economies of scale as the assets of the Fund increase. The Board acknowledged the difficulty in accurately measuring the benefits resulting from economies of scale, if any, with respect to the management of any specific fund or group of funds. The Board reviewed data summarizing the increases and decreases in the assets of the Fund and of all Eaton Vance Funds as a group over various time periods, and evaluated the extent to which the total expense ratio of the Fund and the profitability of the Adviser and its affiliates may have been affected by such increases or decreases. Based upon the foregoing, the Board concluded that the Fund currently shares in the benefits from economies of scale, if any, when they are realized by the Adviser. The Board also considered the fact that the Fund is not continuously offered in the same manner as an open-end fund and that the Fund is authorized to issue additional common shares through a shelf offering. The Board also concluded that the structure of the advisory fee, which includes breakpoints at certain asset levels, will allow the Fund to continue to benefit from any economies of scale in the future.
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Eaton Vance
National Municipal Opportunities Trust
September 30, 2022
Officers and Trustees

Officers
Eric A. Stein
President
Jill R. Damon
Secretary
Deidre E. Walsh
Vice President and Chief Legal Officer
Richard F. Froio
Chief Compliance Officer
James F. Kirchner
Treasurer
 
Trustees  
George J. Gorman
Chairperson
 
Thomas E. Faust Jr.*  
Mark R. Fetting  
Cynthia E. Frost  
Valerie A. Mosley  
Keith Quinton  
Marcus L. Smith  
Susan J. Sutherland  
Scott E. Wennerholm  
Nancy A. Wiser**  
 
* Interested Trustee
** Ms. Wiser began serving as a Trustee effective April 4, 2022.
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Eaton Vance Funds
Privacy Notice April 2021

FACTS
WHAT DOES EATON VANCE DO WITH YOUR
PERSONAL INFORMATION?
Why?
Financial companies choose how they share your personal information. Federal law gives consumers the right to limit some but not all sharing. Federal law also requires us to tell you how we collect, share, and protect your personal information. Please read this notice carefully to understand what we do.
What?
The types of personal information we collect and share depend on the product or service you have with us. This information can include:
■ Social Security number and income
■ investment experience and risk tolerance
■ checking account number and wire transfer instructions
How?
All financial companies need to share customers’ personal information to run their everyday business. In the section below, we list the reasons financial companies can share their customers’ personal information; the reasons Eaton Vance chooses to share; and whether you can limit this sharing.
Reasons we can share your
personal information
Does Eaton Vance
share?
Can you limit
this sharing?
For our everyday business purposes —
such as to process your transactions, maintain your account(s), respond to court orders and legal investigations, or report to credit bureaus
Yes No
For our marketing purposes —
to offer our products and services to you
Yes No
For joint marketing with other financial companies
No We don’t share
For our investment management affiliates’ everyday business purposes —
information about your transactions, experiences, and creditworthiness
Yes Yes
For our affiliates’ everyday business purposes —
information about your transactions and experiences
Yes No
For our affiliates’ everyday business purposes —
information about your creditworthiness
No We don’t share
For our investment management affiliates to market to you
Yes Yes
For our affiliates to market to you
No We don’t share
For nonaffiliates to market to you
No We don’t share
To limit our

sharing
Call toll-free 1-800-262-1122 or email: EVPrivacy@eatonvance.com
Please note:
If you are a
new
customer, we can begin sharing your information 30 days from the date we sent this notice. When you are
no longer
our customer, we continue to share your information as described in this notice. However, you can contact us at any time to limit our sharing.
Questions?
Call toll-free 1-800-262-1122 or email: EVPrivacy@eatonvance.com
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Eaton Vance Funds
Privacy Notice — continued April 2021

Page 2
Who we are
Who is providing this notice?
Eaton Vance Management, Eaton Vance Distributors, Inc., Eaton Vance Trust Company, Eaton Vance Management (International) Limited, Eaton Vance Advisers International Ltd., Eaton Vance Global Advisors Limited, Eaton Vance Management’s Real Estate Investment Group, Boston Management and Research, Calvert Research and Management, Eaton Vance and Calvert Fund Families and our investment advisory affiliates (“Eaton Vance”) (see Investment Management Affiliates definition below)
What we do
How does Eaton Vance
protect my personal
information?
To protect your personal information from unauthorized access and use, we use security measures that comply with federal law. These measures include computer safeguards and secured files and buildings. We have policies governing the proper handling of customer information by personnel and requiring third parties that provide support to adhere to appropriate security standards with respect to such information.
How does Eaton Vance
collect my personal
information?
We collect your personal information, for example, when you
■ open an account or make deposits or withdrawals from your account
■ buy securities from us or make a wire transfer
■ give us your contact information
We also collect your personal information from others, such as credit bureaus, affiliates, or other companies.
Why can’t I limit all sharing?
Federal law gives you the right to limit only
■ sharing for affiliates’ everyday business purposes — information about your creditworthiness
■ affiliates from using your information to market to you
■ sharing for nonaffiliates to market to you
State laws and individual companies may give you additional rights to limit sharing. See below for more on your rights under state law.
Definitions
Investment Management
Affiliates
Eaton Vance Investment Management Affiliates include registered investment advisers, registered broker- dealers, and registered and unregistered funds. Investment Management Affiliates does not include entities associated with Morgan Stanley Wealth Management, such as Morgan Stanley Smith Barney LLC and Morgan Stanley & Co.
Affiliates
Companies related by common ownership or control. They can be financial and nonfinancial companies.
■ 
Our affiliates include companies with a Morgan Stanley name and financial companies such as Morgan Stanley Smith Barney LLC and Morgan Stanley & Co.
Nonaffiliates
Companies not related by common ownership or control. They can be financial and nonfinancial companies.
■ 
Eaton Vance does not share with nonaffiliates so they can market to you.
Joint marketing
A formal agreement between nonaffiliated financial companies that together market financial products or services to you.
■ 
Eaton Vance doesn’t jointly market.
Other important information
Vermont:
Except as permitted by law, we will not share personal information we collect about Vermont residents with Nonaffiliates unless you provide us with your written consent to share such information.
California:
Except as permitted by law, we will not share personal information we collect about California residents with Nonaffiliates and we will limit sharing such personal information with our Affiliates to comply with California privacy laws that apply to us.
25


Table of Contents
Eaton Vance Funds
IMPORTANT NOTICES

Delivery of Shareholder Documents.
 
The Securities and Exchange Commission (SEC) permits funds to deliver only one copy of shareholder documents, including prospectuses, proxy statements and shareholder reports, to fund investors with multiple accounts at the same residential or post office box address. This practice is often called “householding” and it helps eliminate duplicate mailings to shareholders.
American Stock Transfer & Trust Company, LLC (“AST”), the closed-end funds transfer agent, or your financial intermediary, may household the mailing of your documents indefinitely unless you instruct AST, or your financial intermediary, otherwise.
If you would prefer that your Eaton Vance documents not be householded, please contact AST or your financial intermediary. Your instructions that householding not apply to delivery of your Eaton Vance documents will typically be effective within 30 days of receipt by AST or your financial intermediary.
Portfolio Holdings.
 
Each Eaton Vance Fund and its underlying Portfolio(s) (if applicable) files a schedule of portfolio holdings on Part F to Form N-PORT with the SEC. Certain information filed on Form N-PORT may be viewed on the Eaton Vance website at www.eatonvance.com, by calling Eaton Vance at 1-800-262-1122 or in the EDGAR database on the SEC’s website at www.sec.gov.
Proxy Voting.
 
From time to time, funds are required to vote proxies related to the securities held by the funds. The Eaton Vance Funds or their underlying Portfolios (if applicable) vote proxies according to a set of policies and procedures approved by the Funds’ and Portfolios’ Boards. You may obtain a description of these policies and procedures and information on how the Funds or Portfolios voted proxies relating to portfolio securities during the most recent 12-month period ended June 30, without charge, upon request, by calling 1-800-262-1122 and by accessing the SEC’s website at www.sec.gov.
Share Repurchase Program.
 
The Fund’s Board of Trustees has approved a share repurchase program authorizing the Fund to repurchase up to 10% of its common shares outstanding as of the last day of the prior calendar year in open-market transactions at a discount to net asset value. The repurchase program does not obligate the Fund to purchase a specific amount of shares. The Fund’s repurchase activity, including the number of shares purchased, average price and average discount to net asset value, is disclosed in the Fund’s annual and semi-annual reports to shareholders.
Additional Notice to Shareholders.
 
If applicable, a Fund may also redeem or purchase its outstanding preferred shares in order to maintain compliance with regulatory requirements, borrowing or rating agency requirements or for other purposes as it deems appropriate or necessary.
Closed-End Fund Information.
 
Eaton Vance closed-end funds make fund performance data and certain information about portfolio characteristics available on the Eaton Vance website shortly after the end of each month. Other information about the funds is available on the website. The funds’ net asset value per share is readily accessible on the Eaton Vance website. Portfolio holdings for the most recent month-end are also posted to the website approximately 30 days following the end of the month. This information is available at www.eatonvance.com on the fund information pages under “Closed-End Funds & Term Trusts.”
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Table of Contents
Investment Adviser and Administrator
Eaton Vance Management
Two International Place
Boston, MA 02110
Custodian
State Street Bank and Trust Company
State Street Financial Center, One Lincoln Street
Boston, MA 02111
Transfer Agent
American Stock Transfer & Trust Company, LLC
6201 15
th
Avenue
Brooklyn, NY 11219
Fund Offices
Two International Place
Boston, MA 02110


Table of Contents
7765    9.30.22


Item 2.

Code of Ethics

Not required in this filing.

 

Item 3.

Audit Committee Financial Expert

Not required in this filing.

 

Item 4.

Principal Accountant Fees and Services

Not required in this filing.

 

Item 5.

Audit Committee of Listed Registrants

Not required in this filing.


Item 6.

Schedule of Investments

Please see schedule of investments contained in the Report to Stockholders included under Item 1 of this Form N-CSR.

 

Item 7.

Disclosure of Proxy Voting Policies and Procedures for Closed-End Management Investment Companies

Not required in this filing.

 

Item 8.

Portfolio Managers of Closed-End Management Investment Companies

Not required in this filing.

 

Item 9.

Purchases of Equity Securities by Closed-End Management Investment Company and Affiliated Purchasers

No such purchases this period.

 

Item 10.

Submission of Matters to a Vote of Security Holders

No material changes.

 

Item 11.

Controls and Procedures

(a) It is the conclusion of the registrant’s principal executive officer and principal financial officer that the effectiveness of the registrant’s current disclosure controls and procedures (such disclosure controls and procedures having been evaluated within 90 days of the date of this filing) provide reasonable assurance that the information required to be disclosed by the registrant has been recorded, processed, summarized and reported within the time period specified in the Commission’s rules and forms and that the information required to be disclosed by the registrant has been accumulated and communicated to the registrant’s principal executive officer and principal financial officer in order to allow timely decisions regarding required disclosure.

(b) There have been no changes in the registrant’s internal controls over financial reporting during the period covered by this report that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting.

 

Item 12.

Disclosure of Securities Lending Activities for Closed-End Management Investment Companies

No activity to report for the registrant’s most recent fiscal year end.

 

Item 13.

Exhibits

 

(a)(1)

   Registrant’s Code of Ethics – Not applicable (please see Item 2).

(a)(2)(i)

   Treasurer’s Section 302 certification.

(a)(2)(ii)

   President’s Section 302 certification.

(b)

   Combined Section 906 certification.


Signatures

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

 

Eaton Vance National Municipal Opportunities Trust
By:  

/s/ Eric A. Stein

  Eric A. Stein
  President

Date: November 22, 2022

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

 

By:  

/s/ James F. Kirchner

  James F. Kirchner
  Treasurer
Date:   November 22, 2022
By:  

/s/ Eric A. Stein

  Eric A. Stein
  President
Date:   November 22, 2022