497K 1 d690290d497k.htm BATS SERIES P BATS SERIES P
JULY 29, 2024
Summary Prospectus
BlackRock Allocation Target Shares |BATS: Series P Portfolio
Series P Portfolio
BATPX
Before you invest, you may want to review the Fund’s prospectus, which contains more information about the Fund and its risks. You can find the Fund’s prospectus (including amendments and supplements), reports to shareholders and other information about the Fund, including the Fund’s statement of additional information, online at https://www.blackrock.com/prospectus. You can also get this information at no cost by calling (800) 882-0052 or by sending an e-mail request to prospectus.request@blackrock.com, or from your financial professional. The Fund’s prospectus and statement of additional information, both dated July 29, 2024, as amended and supplemented from time to time, are incorporated by reference into (legally made a part of) this Summary Prospectus.
This Summary Prospectus contains information you should know before investing, including information about risks. Please read it before you invest and keep it for future reference.
The Securities and Exchange Commission and the Commodity Futures Trading Commission have not approved or disapproved these securities or passed upon the adequacy of this Summary Prospectus. Any representation to the contrary is a criminal offense.
Not FDIC Insured ● May Lose Value ● No Bank Guarantee

Summary Prospectus
Key Facts About BATS: Series P Portfolio
Investment Objective
The investment objective of the BATS: Series P Portfolio (the “Fund”) is to seek to provide a duration that is the inverse of its benchmark.
Fees and Expenses of the Fund
This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund.
Shareholder Fees
(fees paid directly from your investment)
 
Series P
Portfolio
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)
 
None
Maximum Deferred Sales Charge (Load) (as a percentage of offering price or redemption proceeds, whichever is
lower)
 
None
Annual Fund Operating Expenses
(expenses that you pay each year as a
percentage of the value of your investment)
 
Series P
Portfolio
Management Fee
None
Distribution and/or Service (12b-1) Fees
None
Other Expenses
0.87
%
Total Annual Fund Operating Expenses1
0.87
%
Fee Waivers and/or Expense Reimbursements2
(0.87
)%
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements2
3
1
The Total Annual Fund Operating Expenses do not correlate to the ratio of expenses to average net assets given in the Fund’s most recent annual report, which includes extraordinary expenses.
2
As described in the “Management of the Funds” section of the Fund’s prospectus beginning on page 67, pursuant to the management agreement between BlackRock Advisors, LLC (“BlackRock”) and BlackRock Allocation Target Shares, on behalf of the Fund, BlackRock has contractually agreed to waive all fees and pay or reimburse all fees and expenses of the Fund, except extraordinary expenses, indefinitely. Extraordinary expenses may include Dividend Expense, Interest Expense, Acquired Fund Fees and Expenses and certain other Fund expenses.
3
You should also be aware that the Fund is an investment option for certain “wrap-fee” programs or other separately managed account clients for which BlackRock Investment Management, LLC or certain of its affiliates (individually or collectively referred to as “BIM LLC”) receives compensation pursuant to an investment management agreement. Wrap-fee program participants pay a “wrap-fee” to the sponsor of the program which typically covers investment advice and transaction costs on trades executed with the sponsor or a designated broker-dealer. You should read carefully the wrap-fee or other program brochure provided to you by your program sponsor or investment adviser. The brochure is required to include information about the fees charged to you and, in case of a wrap-fee program, the fees paid by the sponsor to BIM LLC.
Example:
This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
 
1 Year
3 Years
5 Years
10 Years
Series P Portfolio
$0
$0
$0
$0
Portfolio Turnover:
The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 0% of the average value of its portfolio.
2

Principal Investment Strategies of the Fund
The Fund is intended to be used as part of a broader separately managed account program administered directly by BlackRock. The performance and objectives of the Fund should be evaluated only in the context of the investor’s complete investment program. The Fund is not designed to be used as a stand-alone investment.
The Fund may invest in a portfolio of securities and other financial instruments, including derivative instruments, in an attempt to provide returns that are the inverse of its benchmark index, the Bloomberg U.S. Treasury 7-10 Year Bond Index. The Fund’s return is intended to move in the opposite direction of the return of a traditional fixed-income fund. Unlike a traditional fixed-income fund, the value of the Fund is expected to move in the same direction as that of interest rates. The value of a traditional fixed-income fund generally drops as interest rates rise, however, it is expected that the Fund will provide positive returns in a rising interest rate environment. Under normal circumstances, the Fund maintains an average portfolio duration that is within ±20% of the inverse duration of its benchmark, as calculated by BlackRock. As of June 30, 2024, the average duration of the Fund’s benchmark was -6.75 years, as calculated by BlackRock.
The Fund will seek to pursue its investment objective primarily by engaging in short sales of U.S. Treasury securities and by investing in derivative instruments that provide returns that are inverse to those available by investing directly in U.S. Treasury securities. Derivative instruments that the Fund may invest in include, but are not limited to, futures (including U.S. Treasury futures), options, forward contracts and/or swaps, including interest rate swaps, swaptions and total return swaps.
The Fund may also invest significantly in a variety of short-term fixed-income instruments, including, but not limited to, U.S. government securities, U.S. government agency securities, securities issued by U.S. government-sponsored enterprises and U.S. government instrumentalities, investment grade corporate bonds or bonds determined by Fund management to be of similar quality, asset-backed securities and mortgage-backed securities. The Fund will invest in these short-term fixed-income instruments in order to generate income to cover some or all of the costs associated with the Fund’s derivative positions. A significant portion of the Fund’s total assets will be invested in cash and cash equivalents and held by the Fund in connection with its derivative positions. The Fund will also invest a significant portion of its total assets in cash and cash equivalents to use for margin requirements for its derivative positions.
The Fund may invest in other investment companies, such as exchange-traded funds, unit investment trusts, and open-end and closed-end funds, including affiliated investment companies and affiliated and unaffiliated money market funds. As of the date of this prospectus, the Fund intends to invest a significant portion of its assets in the BATS: Series S Portfolio (the BATS-S). The investment objective of BATS-S is to seek to maximize total return, consistent with income generation and prudent investment management. In pursuit of its investment objective, BATS-S principally invests in commercial and residential mortgage-backed securities; obligations of non-U.S. governments and supra-national organizations, such as the International Bank for Reconstruction and Development, which are chartered to promote economic development; obligations of domestic and non-U.S. corporations; asset-backed securities; collateralized mortgage obligations; U.S. Treasury and agency securities; when-issued and delayed delivery securities; derivatives; cash equivalent investments; repurchase agreements and reverse repurchase agreements; and dollar rolls.
The Fund may engage in active and frequent trading of portfolio instruments to achieve its investment objective.
Principal Risks of Investing in the Fund
Risk is inherent in all investing. The value of your investment in the Fund, as well as the amount of return you receive on your investment, may fluctuate significantly from day to day and over time. You may lose part or all of your investment in the Fund or your investment may not perform as well as other similar investments. The following is a summary description of principal risks of investing in the Fund. The relative significance of each risk factor below may change over time and you should review each risk factor carefully.
Debt Securities Risk — Debt securities, such as bonds, involve risks, such as credit risk, interest rate risk, extension risk, and prepayment risk, each of which are described in further detail below:
Credit Risk — Credit risk refers to the possibility that the issuer of a debt security (i.e., the borrower) will not be able to make payments of interest and principal when due. Changes in an issuer’s credit rating or the market’s perception of an issuer’s creditworthiness may also affect the value of the Fund’s investment in that issuer. The degree of credit risk depends on both the financial condition of the issuer and the terms of the obligation.
Interest Rate Risk — The market value of bonds and other fixed-income securities changes in response to interest rate changes and other factors. Interest rate risk is the risk that prices of bonds and other fixed-income securities will increase as interest rates fall and decrease as interest rates rise.
3

The Fund may be subject to a greater risk of rising interest rates due to the recent period of historically low interest rates. For example, if interest rates increase by 1%, assuming a current portfolio duration of ten years, and all other factors being equal, the value of the Fund’s investments would be expected to decrease by 10%. (Duration is a measure of the price sensitivity of a debt security or portfolio of debt securities to relative changes in interest rates.) The magnitude of these fluctuations in the market price of bonds and other fixed-income securities is generally greater for those securities with longer maturities. Fluctuations in the market price of the Fund’s investments will not affect interest income derived from instruments already owned by the Fund, but will be reflected in the Fund’s net asset value. The Fund may lose money if short-term or long-term interest rates rise sharply in a manner not anticipated by Fund management.
To the extent the Fund invests in debt securities that may be prepaid at the option of the obligor (such as mortgage-backed securities), the sensitivity of such securities to changes in interest rates may increase (to the detriment of the Fund) when interest rates rise. Moreover, because rates on certain floating rate debt securities typically reset only periodically, changes in prevailing interest rates (and particularly sudden and significant changes) can be expected to cause some fluctuations in the net asset value of the Fund to the extent that it invests in floating rate debt securities.
These basic principles of bond prices also apply to U.S. Government securities. A security backed by the “full faith and credit” of the U.S. Government is guaranteed only as to its stated interest rate and face value at maturity, not its current market price. Just like other fixed-income securities, government-guaranteed securities will fluctuate in value when interest rates change.
A general rise in interest rates has the potential to cause investors to move out of fixed-income securities on a large scale, which may increase redemptions from funds that hold large amounts of fixed-income securities. Heavy redemptions could cause the Fund to sell assets at inopportune times or at a loss or depressed value and could hurt the Fund’s performance.
Extension Risk — When interest rates rise, certain obligations will be paid off by the obligor more slowly than anticipated, causing the value of these obligations to fall.
Prepayment Risk — When interest rates fall, certain obligations will be paid off by the obligor more quickly than originally anticipated, and the Fund may have to invest the proceeds in securities with lower yields.
U.S. Government Issuer Risk Treasury obligations may differ in their interest rates, maturities, times of issuance and other characteristics. Obligations of U.S. Government agencies and authorities are supported by varying degrees of credit but generally are not backed by the full faith and credit of the U.S. Government. No assurance can be given that the U.S. Government will provide financial support to its agencies and authorities if it is not obligated by law to do so.
Investment in Other Investment Companies Risk— As with other investments, investments in other investment companies, including exchange-traded funds are subject to market and selection risk. In addition, if the Fund acquires shares of investment companies, including ones affiliated with the Fund, shareholders bear both their proportionate share of expenses in the Fund (including management and advisory fees) and, indirectly, the expenses of the investment companies (to the extent not offset by BlackRock through waivers). To the extent the Fund is held by an affiliated fund, the ability of the Fund itself to hold other investment companies may be limited.
Derivatives Risk — The Fund’s use of derivatives may increase its costs, reduce the Fund’s returns and/or increase volatility. Derivatives involve significant risks, including:
Leverage Risk — The Fund’s use of derivatives can magnify the Fund’s gains and losses. Relatively small market movements may result in large changes in the value of a derivatives position and can result in losses that greatly exceed the amount originally invested.
Market Risk — Some derivatives are more sensitive to interest rate changes and market price fluctuations than other securities. The Fund could also suffer losses related to its derivatives positions as a result of unanticipated market movements, which losses are potentially unlimited. Finally, BlackRock may not be able to predict correctly the direction of securities prices, interest rates and other economic factors, which could cause the Fund’s derivatives positions to lose value.
Counterparty Risk — Derivatives are also subject to counterparty risk, which is the risk that the other party in the transaction will be unable or unwilling to fulfill its contractual obligation, and the related risks of having concentrated exposure to such a counterparty.
Illiquidity Risk — The possible lack of a liquid secondary market for derivatives and the resulting inability of the Fund to sell or otherwise close a derivatives position could expose the Fund to losses and could make derivatives more difficult for the Fund to value accurately.
4

Operational Risk — The use of derivatives includes the risk of potential operational issues, including documentation issues, settlement issues, systems failures, inadequate controls and human error.
Legal Risk — The risk of insufficient documentation, insufficient capacity or authority of counterparty, or legality or enforceability of a contract.
Volatility and Correlation Risk — Volatility is defined as the characteristic of a security, an index or a market to fluctuate significantly in price within a short time period. A risk of the Fund’s use of derivatives is that the fluctuations in their values may not correlate with the overall securities markets.
Valuation Risk — Valuation for derivatives may not be readily available in the market. Valuation may be more difficult in times of market turmoil since many investors and market makers may be reluctant to purchase complex instruments or quote prices for them.
Hedging Risk — Hedges are sometimes subject to imperfect matching between the derivative and the underlying security, and there can be no assurance that the Fund’s hedging transactions will be effective. The use of hedging may result in certain adverse tax consequences.
Tax Risk — Certain aspects of the tax treatment of derivative instruments, including swap agreements and commodity-linked derivative instruments, are currently unclear and may be affected by changes in legislation, regulations or other legally binding authority. Such treatment may be less favorable than that given to a direct investment in an underlying asset and may adversely affect the timing, character and amount of income the Fund realizes from its investments.
Illiquid Investments Risk — The Fund may not acquire any illiquid investment if, immediately after the acquisition, the Fund would have invested more than 15% of its net assets in illiquid investments. An illiquid investment is any investment that the Fund reasonably expects cannot be sold or disposed of in current market conditions in seven calendar days or less without the sale or disposition significantly changing the market value of the investment. Liquid investments may become illiquid after purchase by the Fund, particularly during periods of market turmoil. There can be no assurance that a security or instrument that is deemed to be liquid when purchased will continue to be liquid for as long as it is held by the Fund, and any security or instrument held by the Fund may be deemed an illiquid investment pursuant to the Fund’s liquidity risk management program. The Fund’s illiquid investments may reduce the returns of the Fund because it may be difficult to sell the illiquid investments at an advantageous time or price. In addition, if the Fund is limited in its ability to sell illiquid investments during periods when shareholders are redeeming their shares, the Fund will need to sell liquid securities to meet redemption requests and illiquid securities will become a larger portion of the Fund’s holdings. An investment may be illiquid due to, among other things, the reduced number and capacity of traditional market participants to make a market in fixed-income securities or the lack of an active trading market. To the extent that the Fund’s principal investment strategies involve derivatives or securities with substantial market and/or credit risk, the Fund will tend to have the greatest exposure to the risks associated with illiquid investments. Illiquid investments may be harder to value, especially in changing markets, and if the Fund is forced to sell these investments to meet redemption requests or for other cash needs, the Fund may suffer a loss. This may be magnified in a rising interest rate environment or other circumstances where investor redemptions from fixed-income mutual funds may be higher than normal. In addition, when there is illiquidity in the market for certain securities, the Fund, due to limitations on illiquid investments, may be subject to purchase and sale restrictions.
Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended (the “Investment Company Act”) and the rules thereunder. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
Market Risk and Selection Risk — Market risk is the risk that one or more markets in which the Fund invests will go down in value, including the possibility that the markets will go down sharply and unpredictably. The value of a security or other asset may decline due to changes in general market conditions, economic trends or events that are not specifically related to the issuer of the security or other asset, or factors that affect a particular issuer or issuers, exchange, country, group of countries, region, market, industry, group of industries, sector or asset class. Local, regional or global events such as war, acts of terrorism, the spread of infectious illness or other public health issues like pandemics or epidemics, recessions, or other events could have a significant impact on the Fund and its investments. Selection risk is the risk that the securities selected by Fund management will underperform the markets, the relevant indices or the securities selected by other funds with similar investment objectives and investment strategies. This means you may lose money.
5

An outbreak of an infectious coronavirus (COVID-19) that was first detected in December 2019 developed into a global pandemic that has resulted in numerous disruptions in the market and has had significant economic impact leaving general concern and uncertainty. Although vaccines have been developed and approved for use by various governments, the duration of the pandemic and its effects cannot be predicted with certainty. The impact of this coronavirus, and other epidemics and pandemics that may arise in the future, could affect the economies of many nations, individual companies and the market in general ways that cannot necessarily be foreseen at the present time.
Mortgage- and Asset-Backed Securities Risks — Mortgage- and asset-backed securities represent interests in “pools” of mortgages or other assets, including consumer loans or receivables held in trust. Mortgage- and asset-backed securities are subject to credit, interest rate, prepayment and extension risks. These securities also are subject to risk of default on the underlying mortgage or asset, particularly during periods of economic downturn. Small movements in interest rates (both increases and decreases) may quickly and significantly reduce the value of certain mortgage-backed securities.
Short Sales Risk — Because making short sales in securities that it does not own exposes the Fund to the risks associated with those securities, such short sales involve speculative exposure risk. The Fund will incur a loss as a result of a short sale if the price of the security increases between the date of the short sale and the date on which the Fund replaces the security sold short.
Performance Information
The information shows you how the Fund’s performance has varied year by year and provides some indication of the risks of investing in the Fund. The table compares the Fund’s performance to those of the Bloomberg U.S. Treasury 7-10 Year Bond Index and the Bloomberg U.S. Bellwether 10 Year Swap Index. To the extent that dividends and distributions have been paid by the Fund, the performance information for the Fund in the chart and table assumes reinvestment of the dividends and distributions. As with all such investments, past performance (before and after taxes) is not an indication of future results. The table includes all applicable fees. If the Fund’s investment manager and its affiliates had not waived or reimbursed certain Fund expenses during these periods, the Fund’s returns would have been lower. Updated information on the Fund’s performance, including its current net asset value, can be obtained by visiting http://www.blackrock.com or can be obtained by phone at 800-882-0052.
ANNUAL TOTAL RETURNS
BATS: Series P Portfolio
As of 12/31
During the ten-year period shown in the bar chart, the highest return for a quarter was 6.71% (quarter ended September 30, 2023) and the lowest return for a quarter was -10.31% (quarter ended March 31, 2020). The year-to-date return as of June 30, 2024 was 6.94%.
For the periods ended 12/31/23
Average Annual Total Returns
1 Year
5 Years
10 Years
BATS: Series P Portfolio
Return Before Taxes
4.27
%
2.50
%
0.32
%
Return After Taxes on Distributions
2.44
%
1.94
%
(0.02
)%
Return After Taxes on Distributions and Sale of Fund Shares
2.52
%
1.69
%
0.10
%
Bloomberg U.S. Treasury 7-10 Year Bond Index
(Reflects no deduction for fees, expenses or taxes)
3.58
%
0.39
%
1.68
%
6

For the periods ended 12/31/23
Average Annual Total Returns
1 Year
5 Years
10 Years
Bloomberg U.S. Bellwether 10 Year Swap Index (Reflects no deduction for
fees, expenses or taxes)
3.80
%
0.30
%
1.82
%
After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on the investor’s tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Investment Manager
The Fund’s investment manager is BlackRock Advisors, LLC (previously defined as BlackRock).
The Fund’s sub-adviser is BlackRock International Limited. Where applicable, the use of the term BlackRock also refers to the Fund’s sub-adviser.
Portfolio Manager
Portfolio Manager
Portfolio Manager
of the Fund Since
Title
Scott MacLellan, CFA
2020
Director of BlackRock, Inc.
Purchase and Sale of Fund Shares
Shares of the Fund may be purchased and held only by or on behalf of separately managed account clients who have retained BIM LLC to manage their accounts, or who have requested that their investment adviser consider investment recommendations provided by BIM LLC in connection with the management of their accounts.
Purchase and redemption orders generally are made based on instructions from BIM LLC (or other investment adviser to whom BIM LLC provides investment recommendations). Purchase and redemption orders are processed at the net asset value next calculated after the broker-dealer receives the order on behalf of the account each day the New York Stock Exchange is open.
 
BATS: Series P Portfolio
Minimum Initial
Investment
There is no minimum amount for initial investments.
Minimum Additional
Investment
There is no minimum amount for additional investments.
Tax Information
The Fund’s dividends and distributions may be subject to U.S. federal income taxes and may be taxed as ordinary income or capital gains, unless you are a tax-exempt investor or are investing through a qualified tax-exempt plan described in section 401(a) of the Internal Revenue Code, in which case you may be subject to U.S. federal income tax when distributions are received from such tax-deferred arrangements.
Payments to Broker/Dealers and Other Financial Intermediaries
If you purchase shares of the Fund through a financial intermediary, the Fund and BlackRock Investments, LLC, the Fund’s distributor, or its affiliates may pay the financial intermediary for the sale of Fund shares and related services.
These payments may create a conflict of interest by influencing the financial intermediary and your individual financial professional to recommend the Fund over another investment.
Ask your individual financial professional or visit your financial intermediary’s website for more information.
7

INVESTMENT COMPANY ACT FILE # 811-21457
SPRO-BATSP-0724