Self-Regulatory Organizations; NYSE Arca, Inc.; Notice of Filing of Amendment No. 2 and Order Instituting Proceedings To Determine Whether To Approve or Disapprove a Proposed Rule Change, as Modified by Amendment No. 2, Regarding Changes to Investments of the iShares Bloomberg Roll Select Commodity Strategy ETF

I. Introduction

On December 19, 2018, NYSE Arca, Inc. (“Exchange” or “NYSE Arca”) filed with the Securities and Exchange Commission (“Commission”), pursuant to Section 19(b)(1) of the Securities Exchange Act of 1934 (“Act”) and Rule 19b-4 thereunder, a proposed rule change regarding changes to investments of the iShares Bloomberg Roll Select Commodity Strategy ETF (“Fund”), shares (“Shares”) of which are currently listed and traded on the Exchange under NYSE Arca Rule 8.600-E . The proposed rule change was published for comment in the Federal Register on December 31, 2018. On February 13, 2019, pursuant to Section 19(b)(2) of the Act, the Commission designated a longer period within which to approve the proposed rule change, disapprove the proposed rule change, or institute proceedings to determine whether to approve or disapprove the proposed rule change. On March 6, 2019, the Exchange filed Amendment No. 1 to the proposed rule change, which replaced and superseded the proposed rule change as originally filed. On March 14, 2019, the Exchange filed Amendment No. 2 to the proposed rule change, which replaced and superseded the proposed rule change, as modified by Amendment No. 1. The Commission has received no comment letters on the proposal. The Commission is publishing this notice and order to solicit comments on the proposed rule change, as modified by Amendment No. 2, from interested persons and to institute proceedings pursuant to Section 19(b)(2)(B) of the Act to determine whether to approve or disapprove the proposed rule change, as modified by Amendment No. 2.

II. Summary of the Exchange's Description of the Proposal, as Modified by Amendment No. 2

The Exchange proposes certain changes regarding investments of the Fund, Shares of which are currently listed and traded on the Exchange under NYSE Arca Rule 8.600-E, which governs the listing and trading of Managed Fund Shares on the Exchange. Shares of the Fund commenced listing and trading on the Exchange on April 5, 2018 under the generic listing standards under Commentary .01 to NYSE Arca Rule 8.600-E.

The Shares are offered by iShares U.S. ETF Trust (“Trust”), which is registered with the Commission as an open-end management investment company. The Fund is a series of the Trust.

BlackRock Fund Advisors (“Adviser”) is the investment adviser for the Fund. BlackRock Investments, LLC is the distributor for the Fund's Shares. State Street Bank and Trust Company serves as the administrator, custodian and transfer agent for the Fund.

A. Fund Investments

According to the Exchange, the Fund's investment objective is to seek to provide exposure, on a total return basis, to a diversified group of commodities. The Fund is actively managed and seeks to achieve its investment objective in part by, under normal market conditions, investing in listed and over-the-counter (“OTC”) total return swaps referencing the Bloomberg Roll Select Commodity Index (“Reference Benchmark”). In connection with investments in swaps on the Reference Benchmark, the Fund is expected to establish new swaps contracts on an ongoing basis and replace expiring contracts. Swaps subsequently entered into by the Fund may have terms that differ from the swaps the Fund previously held. The Fund expects generally to pay a fixed payment rate and certain swap related fees to the swap counterparty and receive the total return of the Reference Benchmark, including in the event of negative performance by the Reference Benchmark, negative return (i.e., a payment from the Fund to the swap counterparty). In seeking total return, the Fund additionally aims to generate interest income and capital appreciation through a cash management strategy consisting primarily of cash, cash equivalents, and fixed income securities other than cash equivalents, as described below.

The Reference Benchmark is composed of 22 futures contracts across 20 physical agricultural, livestock, energy, precious metals and industrial metals commodities. The Reference Benchmark reflects the returns from these commodities and provides broad-based exposure to commodities as an asset class by using liquidity and sector caps to avoid overconcentration in any single commodity or commodity sector. The Reference Benchmark employs a contract roll strategy intended to minimize the effects of contango and maximize the effects of backwardation.

The Fund will invest in financial instruments described below that provide exposure to commodities and not in the physical commodities themselves.

The Fund (through its Subsidiary (as defined below)) may hold the following listed derivative instruments: Futures, options, and swaps on commodities (which commodities are from the same sectors as those included in the Reference Benchmark), currencies, U.S. and non-U.S. equity securities, fixed income securities (as defined in Commentary .01(b) to NYSE Arca Rule 8.600-E, but excluding Short-Term Fixed Income Securities (as defined below)), interest rates, financial rates, U.S. Treasuries, or a basket or index of any of the foregoing (collectively, “Listed Derivatives”). Listed Derivatives will comply with the criteria in Commentary .01(d) of NYSE Arca Rule 8.600-E.

The Fund (through its Subsidiary) may hold the following OTC derivative instruments: Forwards, options, and swaps on commodities (which commodities are from the same sectors as those included in the Reference Benchmark), currencies, U.S. and non-U.S. equity securities, fixed income securities (as defined in Commentary .01(b) to Rule 8.600-E, but excluding Short-Term Fixed Income Securities), interest rates, financial rates, or a basket or index of any of the foregoing (collectively, “OTC Derivatives,” and together with Listed Derivatives, “Commodity Investments”).

The Fund may hold cash, cash equivalents and fixed income securities other than cash equivalents, as described further below.

Specifically, the Fund may invest in Short-Term Fixed Income Securities (as defined below) other than cash equivalents on an ongoing basis to provide liquidity or for other reasons. Short-Term Fixed Income Securities will have a maturity of no longer than 397 days and include only the following: (i) Money market instruments; (ii) obligations issued or guaranteed by the U.S. government, its agencies or instrumentalities (including government-sponsored enterprises); (iii) negotiable certificates of deposit, bankers' acceptances, fixed-time deposits and other obligations of U.S. and non-U.S. banks (including non-U.S. branches) and similar institutions; (iv) commercial paper; (v) non-convertible corporate debt securities (e.g., bonds and debentures); (vi) repurchase agreements; (vii) short-term U.S. dollar-denominated obligations of non-U.S. banks (including U.S. branches) that, in the opinion of the Adviser, are of comparable quality to obligations of U.S. banks that may be purchased by the Fund; and (viii) sovereign obligations (collectively, “Short-Term Fixed Income Securities”). Any of these securities may be purchased on a current or forward-settled basis.

The Fund also may invest in fixed income securities as defined in Commentary .01(b) to NYSE Arca Rule 8.600-E, other than cash equivalents and Short-Term Fixed Income Securities, with remaining maturities longer than 397 days (“Fixed Income Securities”). Such Fixed Income Securities will comply with the requirements of Commentary .01(b) to NYSE Arca Rule 8.600-E.

The Fund may also hold exchange-traded notes (“ETNs”) and exchange-traded funds (“ETFs”).

The Fund's exposure to Commodity Investments is obtained by investing through a wholly-owned subsidiary organized in the Cayman Islands (“Subsidiary”). The Fund controls the Subsidiary, and the Subsidiary is advised by the Adviser and has the same investment objective as the Fund. In compliance with the requirements of Sub-Chapter M of the Internal Revenue Code of 1986, the Fund may invest up to 25% of its total assets in the Subsidiary. The Subsidiary is not an investment company registered under the 1940 Act and is a company organized under the laws of the Cayman Islands. The Trust's Board of Trustees (“Board”) has oversight responsibility for the investment activities of the Fund, including its investment in the Subsidiary, and the Fund's role as sole shareholder of the Subsidiary.

The Fund's Commodity Investments held in the Subsidiary are intended to provide the Fund with exposure to broad commodities. The Subsidiary may hold cash and cash equivalents.

B. Investment Restrictions

The Fund and the Subsidiary will not invest in securities or other financial instruments that have not been described in the proposed rule change. The Fund's investments, including derivatives, will be consistent with the Fund's investment objective and will not be used to enhance leverage (although certain derivatives and other investments may result in leverage). That is, the Fund's investments will not be used to seek performance that is the multiple or inverse multiple (e.g., 2X or -3X) of the Fund's Reference Benchmark.

C. Use of Derivatives by the Fund

Investments in derivative instruments will be made in accordance with the Fund's investment objective and policies. To limit the potential risk associated with such transactions, the Fund will enter into offsetting transactions or segregate or “earmark” assets determined to be liquid by the Adviser in accordance with procedures established by the Board. In addition, the Fund has included appropriate risk disclosure in its offering documents, including leveraging risk. Leveraging risk is the risk that certain transactions of the Fund, including the Fund's use of derivatives, may give rise to leverage, causing the Fund to be more volatile than if it had not been leveraged.

The Adviser believes there will be minimal, if any, impact to the arbitrage mechanism as a result of the Fund's use of derivatives. The Adviser understands that market makers and participants should be able to value derivatives as long as the positions are disclosed with relevant information. The Adviser believes that the price at which Shares of the Fund trade will continue to be disciplined by arbitrage opportunities created by the ability to purchase or redeem Shares of the Fund at their net asset value (“NAV”), which should ensure that Shares of the Fund will not trade at a material discount or premium in relation to their NAV.

The Adviser does not believe there will be any significant impacts to the settlement or operational aspects of the Fund's arbitrage mechanism due to the use of derivatives.

D. Application of Generic Listing Requirements

The Exchange represents that the proposed portfolio for the Fund will not meet all of the “generic” listing requirements of Commentary .01 to NYSE Arca Rule 8.600-E applicable to the listing of Managed Fund Shares. The Exchange represents that the Fund's portfolio will meet all such requirements except for those set forth in Commentary .01 (b)(1)-(4) (with respect to Short-Term Fixed Income Securities) and .01(e) (with respect to OTC Derivatives), as described below.

According to the Exchange, the Fund's investments currently comply with the generic requirements set forth in Commentary .01 to NYSE Arca Rule 8.600-E. The Exchange proposes that, going forward, the Fund's investments in Short-Term Fixed Income Securities will not comply with the requirements set forth in Commentary .01(b)(1)-(4) to NYSE Arca Rule 8.600-E. The Exchange states that while the requirements set forth in Commentary .01(b)(1)-(4) include rules intended to ensure that the fixed income securities included in a fund's portfolio are sufficiently large and diverse and have sufficient publicly available information regarding the issuances, the Exchange believes that any concerns regarding non-compliance are mitigated by the types of instruments that the Fund would hold. The Exchange represents that the Fund's Short-Term Fixed Income Securities primarily would include those instruments that are included in the definition of cash and cash equivalents, but are not considered cash and cash equivalents because they have maturities of three months or longer. The Exchange believes, however, that, because all Short-Term Fixed Income Securities, including non-convertible corporate debt securities and sovereign obligations (which are not cash equivalents as enumerated in Commentary .01(c) to NYSE Arca Rule 8.600-E), are highly liquid they are less susceptible than other types of fixed income instruments both to price manipulation and volatility and that the holdings as proposed are generally consistent with the policy concerns which Commentary .01(b)(1)-(4) is intended to address. Because the Short-Term Fixed Income Securities will consist of high-quality fixed income securities described above, the Exchange believes that the policy concerns that Commentary .01(b)(1)-(4) is intended to address are otherwise mitigated and that the Fund should be permitted to hold these securities in a manner that may not comply with Commentary .01(b)(1)-(4).

According to the Exchange, the Fund's portfolio with respect to OTC Derivatives currently complies with the requirements set forth in Commentary .01(e) to NYSE Arca Rule 8.600-E. The Exchange proposes that, going forward, the Fund's holdings in OTC Derivatives will not comply with the requirements set forth in Commentary .01(e). Specifically, the Exchange states that up to 60% of the Fund's assets (calculated as the aggregate gross notional value) may be invested in OTC Derivatives. The Exchange states that the Adviser believes that it is important to provide the Fund with additional flexibility to manage risk associated with its investments and, depending on market conditions, it may be critical that the Fund be able to utilize available OTC Derivatives to efficiently gain exposure to the multiple commodities that underlie the Reference Benchmark, as well as commodity futures contracts similar to those found in the Reference Benchmark.

The Exchange states that OTC Derivatives can be tailored to provide specific exposure to the Fund's Reference Benchmark, as well as commodity futures contracts similar to those found in the Reference Benchmark, allowing the Fund to more efficiently meet its investment objective. The Exchange further states that if the Fund were to gain commodity exposure exclusively through the use of listed futures, the Fund's holdings in listed futures would be subject to position limits and accountability levels established by an exchange, and such limitations would restrict the Fund's ability to gain efficient exposure to the commodities in the Reference Benchmark, or futures contracts similar to those found in the Reference Benchmark, thereby impeding the Fund's ability to satisfy its investment objective.

The Exchange states that the Adviser represents that the Fund's holdings in OTC Derivatives will satisfy the criteria applicable to holdings in Listed Derivatives in Commentary .01(d)(2) to NYSE Arca Rule 8.600-E on an initial and continued listing basis. Thus, with respect to the Fund's holdings in OTC Derivatives, the aggregate gross notional value of OTC Derivatives based on any five or fewer underlying reference assets will not exceed 65% of the weight of the portfolio (including gross notional exposures), and the aggregate gross notional value of OTC Derivatives based on any single underlying reference asset will not exceed 30% of the weight of the portfolio (including gross notional exposures). The Exchange also represents that the Adviser and its affiliates actively monitor counterparty credit risk exposure (including for OTC derivatives) and evaluate counterparty credit quality on a continuous basis. Finally, the Exchange states that the Adviser represents that futures contracts on all commodities in the Reference Benchmark are traded on futures exchanges that are members of the Intermarket Surveillance Group.

III. Proceedings To Determine Whether To Approve or Disapprove SR-NYSEArca-2018-83, as Modified by Amendment No. 2, and Grounds for Disapproval Under Consideration

The Commission is instituting proceedings pursuant to Section 19(b)(2)(B) of the Act to determine whether the proposed rule change should be approved or disapproved. Institution of such proceedings is appropriate at this time in view of the legal and policy issues raised by the proposed rule change. Institution of proceedings does not indicate that the Commission has reached any conclusions with respect to any of the issues involved. Rather, as described below, the Commission seeks and encourages interested persons to provide comments on the proposed rule change.

Pursuant to Section 19(b)(2)(B) of the Act, the Commission is providing notice of the grounds for disapproval under consideration. The Commission is instituting proceedings to allow for additional analysis of the proposed rule change's consistency with Section 6(b)(5) of the Act, which requires, among other things, that the rules of a national securities exchange be “designed to prevent fraudulent and manipulative acts and practices, to promote just and equitable principles of trade,” and “to protect investors and the public interest.”

IV. Procedure: Request for Written Comments

The Commission requests that interested persons provide written submissions of their views, data, and arguments with respect to the issues identified above, as well as any other concerns they may have with the proposal. In particular, the Commission invites the written views of interested persons concerning whether the proposed rule change, as modified by Amendment No. 2, is consistent with Section 6(b)(5) or any other provision of the Act, or the rules and regulations thereunder. Although there do not appear to be any issues relevant to approval or disapproval that would be facilitated by an oral presentation of views, data, and arguments, the Commission will consider, pursuant to Rule 19b-4 under the Act, any request for an opportunity to make an oral presentation.

Interested persons are invited to submit written data, views, and arguments regarding whether the proposed rule change, as modified by Amendment No. 2, should be approved or disapproved by April 17, 2019. Any person who wishes to file a rebuttal to any other person's submission must file that rebuttal by May 1, 2019. The Commission asks that commenters address the sufficiency of the Exchange's statements in support of the proposal, which are set forth in Amendment No. 2, in addition to any other comments they may wish to submit about the proposed rule change.

In this regard, the Commission seeks comment on the Exchange's statements that the Fund will not comply with the requirement in Commentary .01(e) to NYSE Arca Rule 8.600-E that investments in OTC Derivatives be limited to 20% of the assets of the Fund's portfolio. Instead, the Fund's investments in OTC Derivatives would be limited to 60% of the Fund's assets. Such OTC Derivatives may be forwards, options, and swaps on commodities (which commodities are from the same sectors as those included in the Reference Benchmark), currencies, U.S. and non-U.S. equity securities, fixed income securities (as defined in Commentary .01(b) to NYSE Arca Rule 8.600-E, but excluding Short-Term Fixed Income Securities), interest rates, and financial rates, or a basket or index of any of the foregoing. The Commission specifically seeks comment on whether the Fund's proposed investments in OTC Derivatives are consistent with the requirement that the rules of a national securities exchange be “designed to prevent fraudulent and manipulative acts and practices, to promote just and equitable principles of trade,” and “to protect investors and the public interest.” Has the Exchange has provided sufficient information relating to OTC Derivatives, including the underlying reference assets of such OTC Derivatives, for the Commission to determine that trading of the Fund's Shares would be consistent with the Act?

Comments may be submitted by any of the following methods:

Electronic Comments

• Use the Commission's internet comment form ( http://www.sec.gov/rules/sro.shtml ); or
• Send an email to rule-comments@sec.gov. Please include File Number SR-NYSEArca-2018-83 on the subject line.

Paper Comments

• Send paper comments in triplicate to Secretary, Securities and Exchange Commission, 100 F Street NE, Washington, DC 20549-1090.

All submissions should refer to File Number SR-NYSEArca-2018-83. This file number should be included on the subject line if email is used. To help the Commission process and review your comments more efficiently, please use only one method. The Commission will post all comments on the Commission's internet website ( http://www.sec.gov/rules/sro.shtml ). Copies of the submission, all subsequent amendments, all written statements with respect to the proposed rule change that are filed with the Commission, and all written communications relating to the proposed rule change between the Commission and any person, other than those that may be withheld from the public in accordance with the provisions of 5 U.S.C. 552, will be available for website viewing and printing in the Commission's Public Reference Room, 100 F Street NE, Washington, DC 20549 on official business days between the hours of 10:00 a.m. and 3:00 p.m. Copies of the filing also will be available for inspection and copying at the principal office of the Exchange. All comments received will be posted without change. Persons submitting comments are cautioned that we do not redact or edit personal identifying information from comment submissions. You should submit only information that you wish to make available publicly. All submissions should refer to File Number SR-NYSEArca-2018-83 and should be submitted by April 17, 2019. Rebuttal comments should be submitted by May 1, 2019.