<DOCUMENT>
<TYPE>EX-99.77O RULE 10F-3
<SEQUENCE>10
<FILENAME>77o15.txt
<TEXT>
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                                                            [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 GLOBAL HIGH YIELD CORPORATE BOND ETF (ISHGHYG)
   ISHARES IBOXX $ HIGH YIELD CORPORATE BOND ETF (ISHHYLD)
   ISHARES U.S. FIXED INCOME BALANCED RISK ETF (ISHINC)
   ISHARES CORE TOTAL USD BOND MARKET ETF (ISHIUSB)
   BlackRock Alternative Strategies Fund - Trading Account (ACS-TRD)
   BlackRock Balanced Capital Portfolio (FI) (BCS_F)
   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 Secured Credit Portfolio (BR-MSB)
   BlackRock Credit Allocation Income Trust (Preferred Sleeve) (BTZ-PREF)
   BlackRock Total Return V.I. Portfolio (Ins - Var Ser) (BVA-BF)
   BlackRock High Yield Portfolio of BlackRock Series Fund, Inc (BVA-HI)
   BlackRock High Yield V.I. Fund (BVA-HY)
   BlackRock Total Return Portfolio (Ins - Series) (BVA-TR)
   BlackRock Debt Strategies Fund, Inc. (DSU)
   BlackRock Corporate High Yield Fund, Inc. (HYT)
   Metropolitan Series Fund, Inc.- BlackRock Bond Income Portfolio (MET-BI)
   Master Total Return Portfolio of Master Bond LLC (MF-BOND)
   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)
   Advanced Series Trust - AST BlackRock/Loomis Sayles Bond Portfolio
   (SMF_PRUTR)

THE OFFERING

KEY CHARACTERISTICS (COMPLETE ALL FIELDS)

--------------------------------------
Date of                   11-05-2015
Offering Commencement:
------------------------  ------------
Security Type:            BND/CORP
--------------------------------------
-------------------------------------------------------------------------------
Issuer                       First Data Corporation (2024)
---------------------------  --------------------------------------------------
Selling Underwriter          Deutsche Bank Securities Inc.
---------------------------  --------------------------------------------------
Affiliated Underwriter(s)    [X]  PNC Capital Markets LLC
                             [_]  Other:
---------------------------  --------------------------------------------------
List of Underwriter(s)       Deutsche Bank Securities Inc., Merrill Lynch,
                             Pierce, Fenner & Smith Incorporated, Citigroup
                             Global Markets Inc, Morgan Stanley & Co. LLC, PNC
                             Capital Markets LLC, Credit Suisse Securities
                             (USA) LLC, HSBC Securities (USA) Inc, Mizuho
                             Securities USA Inc, SunTrust Robinson Humphrey,
                             Inc, KKR Capital Markets LLC
-------------------------------------------------------------------------------

                                  Page 1 of 2

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

TRANSACTION DETAILS

-------------------------------
Date of Purchase    11-05-2015
-------------------------------
-------------------------------------------------------------------------------
Purchase Price/Share
(PER SHARE / % OF PAR)    $100 Total Commission, Spread or Profit          1.00
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
1. Aggregate Principal Amount Purchased (a+b)                    $   90,000,000
---------------------------------------------------------------  --------------
    a. US Registered Funds (Appendix attached with individual
       Fund/Client purchase)                                     $   52,806,000
---------------------------------------------------------------  --------------
    b. Other BlackRock Clients                                   $   37,194,000
---------------------------------------------------------------  --------------
2. Aggregate Principal Amount of Offering                        $1,000,000,000
---------------------------------------------------------------  --------------
FUND RATIO
[Divide Sum of #1 by #2]
Must be less than 0.25                                                     0.09
-------------------------------------------------------------------------------

LEGAL REQUIREMENTS

OFFERING TYPE (CHECK ONE)

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

[X]  U.S. Registered Public         [Issuer must have 3 years of continuous
     Offering...................... 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          [Issuer must have 3 years of continuous
     Offering...................... 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,
[_]  NO   or benefited directly or indirectly from, the transaction.

<PAGE>

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

Completed by:  Dipankar Banerjee                              Date: 11-10-2015
               ---------------------------------------------
               Global Syndicate Team Member

Approved by:   Steven DeLaura                                 Date: 11-10-2015
               ---------------------------------------------
               Global Syndicate Team Member

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.

<PAGE>

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

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