<DOCUMENT>
<TYPE>EX-99.77O RULE 10F-3
<SEQUENCE>8
<FILENAME>77O15.txt
<TEXT>
<PAGE>

                                                            [LOGO OF BLACKROCK]

Rule 10f-3 Transaction Form

Acquisition of Securities During Affiliated Underwritings

PARTICIPATING FUNDS

.   U.S. Registered Funds (Name of Fund, Aladdin Ticker):
    ISHARES EDGE U.S. FIXED INCOME BALANCED RISK ETF (ISHFIBR)
    ISHARES GLOBAL HIGH YIELD CORPORATE BOND ETF (ISHGHYG)
    ISHARES IBOXX $ HIGH YIELD CORPORATE BOND ETF (ISHHYLD)
    ISHARES CORE 10+ YEAR USD BOND ETF (ISHILTB)
    ISHARES CORE TOTAL USD BOND MARKET ETF (ISHIUSB)
    BlackRock Core Bond Trust - High Yield (BHK-HYLD)
    BlackRock Multi-Sector Income Trust - High Yield (BIT-HYLD)
    BlackRock Limited Duration Income Trust - High Yield (BLW-HYLD)
    BlackRock Funds, BlackRock Global Long/Short Credit Fund (BR-GC)
    BlackRock Funds II, High Yield Bond Portfolio (BR-HIYLD)
    BlackRock Multi-Asset Income - High Yield Portfolio (BR-INC-HY)
    BlackRock Multi-Asset Income - Passive High Yield Portfolio (BR-INC-PHY)
    BlackRock Credit Strategies Income - High Yield (BR-MSBHY)
    BlackRock Credit Allocation Income Trust (Preferred Sleeve) (BTZ-PREF)
    BlackRock High Yield Portfolio of BlackRock Series Fund, Inc (BVA-HI)
    BlackRock High Yield V.I. Fund (BVA-HY)
    BlackRock Debt Strategies Fund, Inc. (DSU)
    BlackRock Corporate High Yield Fund, Inc. (HYT)
    MIST BlackRock High Yield Portfolio (MIST-HY)
    AST BlackRock Global Strategies Portfolio (US High Yield) (PRU-AA-HY)
    JNL/BlackRock Global Long Short Credit Fund (SMF_CC-GC)

THE OFFERING

KEY CHARACTERISTICS (COMPLETE ALL FIELDS)


Date of Offering Commencement:  10-24-2016

Security Type:                  BND/CORP

Issuer                          United Rentals (North America), Inc. (2027)

Selling Underwriter             Morgan Stanley & Co. LLC

Affiliated Underwriter(s)       [X] PNC Capital Markets LLC
                                [_] Other:

List of Underwriter(s)          Morgan Stanley & Co. LLC, Merrill Lynch,
                                Pierce, Fenner & Smith Incorporated, Wells
                                Fargo Securities, LLC, Citigroup Global
                                Markets Inc., Scotia Capital (USA) Inc., MUFG
                                Securities Americas Inc., Barclays Capital
                                Inc., Deutsche Bank Securities Inc., J.P.
                                Morgan Securities LLC, SunTrust Robinson
                                Humphrey, Inc., BMO Capital Markets Corp., PNC
                                Capital Markets LLC

                                  Page 1 of 2

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Rule 10f-3 Report - Definitions                            [LOGO OF BLACKROCK]

Transaction Details

Date of Purchase     10-24-2016

Purchase Price/Share
(PER SHARE / % OF PAR)         $100 Total Commission, Spread or Profit  1.250%

<TABLE>
<S>                                                                <C>
1.  Aggregate Principal Amount Purchased (a+b)                     $ 60,000,000

    a.  US Registered Funds
        (Appendix attached with individual Fund/Client purchase)   $ 28,741,000

    b.  Other BlackRock Clients                                    $ 31,259,000

2.  Aggregate Principal Amount of Offering                         $750,000,000

FUND RATIO
[Divide Sum of #1 by #2]
Must be less than 0.25                                                     0.08
</TABLE>

<PAGE>

Rule 10f-3 Report - Definitions                            [LOGO OF BLACKROCK]

LEGAL REQUIREMENTS

OFFERING TYPE (CHECK ONE)

The securities fall into one of the following transaction types (see
Definitions):

[X] U.S. Registered Public Offering... [Issuer must have 3 years of continuous
                                       operations]
[_] Eligible Rule 144A Offering....... [Issuer must have 3 years of continuous
                                       operations]
[_] Eligible Municipal Securities
[_] Eligible Foreign Offering......... [Issuer must have 3 years of continuous
                                       operations]
[_] Government Securities Offering.... [Issuer must have 3 years of continuous
                                       operations]

TIMING AND PRICE (CHECK ONE OR BOTH)

[X] The securities were purchased before the end of the first day on which any
    sales were made, at a price that was not more than the price paid by each
    other purchaser of securities in that offering or in any concurrent
    offering of the securities; and
[_] If the securities are offered for subscription upon exercise of rights, the
    securities were purchased on or before the fourth day before the day on
    which the rights offering terminated.

FIRM COMMITMENT OFFERING (CHECK ONE)

[X] YES  The securities were offered pursuant to an underwriting or similar
[_] NO   agreement under which the underwriters were committed to purchase all
         of the securities being offered, except those purchased by others
         pursuant to a rights offering, if the underwriters purchased any of
         the securities.

NO BENEFIT TO AFFILIATED UNDERWRITER (CHECK ONE)

[X] YES  No affiliated underwriter was a direct or indirect participant in, or
[_] NO   benefited directly or indirectly from, the transaction.

Completed by:             Dipankar Banerjee                 Date:   11-02-2016
                          --------------------------------         ------------
                          Global Syndicate Team Member

Approved by:              Steven DeLaura                    Date:   11-02-2016
                          --------------------------------         ------------
                          Global Syndicate Team Member

<PAGE>

Rule 10f-3 Report - Definitions                            [LOGO OF BLACKROCK]

DEFINITIONS

TERM                           DEFINITION
Fund Ratio                     Number appearing at the bottom of page 1 of 2
                               of the Rule 10f-3 Report form. It is the sum of
                               the Funds' participation in the offering by the
                               Funds and other accounts managed by BlackRock
                               divided by the total amount of the offering.

Eligible Foreign Offering      The securities are sold in a public offering
                               conducted under the laws of a country other
                               than the United States and

                               (a) the offering is subject to regulation in
                                   such country by a "foreign financial
                                   regulatory authority," as defined in
                                   Section 2(a)(50) of the Investment Company
                                   Act of 1940;

                               (b) the securities were offered at a fixed
                                   price to all purchasers in the offering
                                   (except for any rights to purchase
                                   securities that are required by law to be
                                   granted to existing security holders of the
                                   issuer);

                               (c) financial statements, prepared and audited
                                   as required or permitted by the appropriate
                                   foreign financial regulatory authority in
                                   such country, for the two years prior to
                                   the offering, were made available to the
                                   public and prospective purchasers in
                                   connection with the offering; and

                               (d) if the issuer is a "domestic issuer," i.e.,
                                   other than a foreign government, a national
                                   of any foreign country, or a corporation or
                                   other organization incorporated or
                                   organized under the laws of any foreign
                                   country, it (1) has a class of securities
                                   registered pursuant to section 12(b) or
                                   12(g) of the Securities Exchange Act of
                                   1934 or is required to file reports
                                   pursuant to section 15(d) of that act, and
                                   (2) has filed all the material required to
                                   be filed pursuant to section 13(a) or 15(d)
                                   of that act for a period of at least 12
                                   months immediately preceding the sale of
                                   securities (or for such shorter period that
                                   the issuer was required to file such
                                   material)

<PAGE>

Rule 10f-3 Report - Definitions                            [LOGO OF BLACKROCK]

TERM                           DEFINITION
Eligible Municipal Securities  The securities:

                               (a) are direct obligations of, or obligations
                               guaranteed as to principal or interest by, a
                               State or any political subdivision thereof, or
                               any agency or instrumentality of a State or any
                               political subdivision thereof, or any municipal
                               corporate instrumentality of one or more
                               States, or any security which is an industrial
                               development bond (as defined in section
                               103(c)(2) of Title 26) the interest on which is
                               excludable from gross income under certain
                               provisions of the Internal Revenue Code;

                               (b) are sufficiently liquid that they can be
                                   sold at or near their carrying value within
                                   a reasonably short period of time; and

                               (c) either

                                   (1) are subject to no greater than moderate
                                       credit risk; or

                                   (2) if the issuer of the municipal
                                       securities, or the entity supplying the
                                       revenues or other payments from which
                                       the issue is to be paid, has been in
                                       continuous operation for less than
                                       three years, including the operation of
                                       any predecessors, the securities are
                                       subject to a minimal or low amount of
                                       credit risk.

                               Also, purchases of municipal securities may not
                               be designated as group sales or otherwise
                               allocated to the account of any prohibited
                               seller (i.e., an affiliated underwriter).

Eligible Rule 144A Offering    The securities are sold in an offering where

                               (a) the securities are offered or sold in
                                   transactions exempt from registration under
                                   Section 4(2) of the Securities Act of 1933,
                                   Rule 144A thereunder, or Rules 501-508
                                   thereunder;

                               (b) the securities were sold to persons that
                                   the seller and any person acting on behalf
                                   of the seller reasonably believe to include
                                   qualified institutional buyers, as defined
                                   in Rule 144A ("QIBs"); and

                               (c) the seller and any person acting on behalf
                                   of the seller reasonably believe that the
                                   securities are eligible for resale to other
                                   QIBs pursuant to Rule 144A.

Government Securities Offering The security is issued or guaranteed as to
                               principal or interest by the United States, or
                               by a person controlled or supervised by and
                               acting as an instrumentality of the Government
                               of the United States pursuant to authority
                               granted by the Congress of the United States;
                               or any certificate of deposit for any of the
                               foregoing.

<PAGE>

Rule 10f-3 Report - Definitions                            [LOGO OF BLACKROCK]

TERM                           DEFINITION
U.S. Registered Public         The securities offered are registered under the
Offering.                      Securities Act of 1933 that are being offered
                               to the public.
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