UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of
the Securities Exchange Act of 1934

Filed by the Registrant x
Filed by a Party other than the Registrant ¨
Check the appropriate box:
¨	Preliminary Proxy Statement
¨	Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
¨	Definitive Proxy Statement
x	Definitive Additional Materials
¨	Soliciting Material under §240.14a-12
CREDIT SUISSE COMMODITY STRATEGY FUNDS CREDIT SUISSE OPPORTUNITY FUNDS CREDIT SUISSE TRUST CREDIT SUISSE ASSET MANAGEMENT INCOME FUND, INC. CREDIT SUISSE HIGH YIELD BOND FUND
(Name of Registrant as Specified In Its Charter)
(Name of Person(s) Filing Proxy Statement, if other than the Registrant)
Payment of Filing Fee (Check the appropriate box):
x	No fee required.
¨	Fee paid previously with preliminary materials.
¨	Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11.

ADVISOR NOTIFICATION

CREDIT SUISSE –UBS MERGER UPDATE & PROXY INSIGHTS

On June 12, 2023, Credit Suisse Group AG (“CS Group”) merged with and into UBS Group AG, a multinational investment bank and financial services company (“UBS Group”), with UBS Group remaining as the surviving company (the “Merger”). The closing of the Merger was deemed to result in an assignment, thereby causing the Credit Suisse Funds’ investment advisory agreements with Credit Suisse Asset Management, LLC (“Credit Suisse”), as well as the sub-advisory agreement between Credit Suisse and Credit Suisse Asset Management Limited (“Credit Suisse UK”) with respect to Credit Suisse Strategic Income Fund, to automatically terminate in accordance with applicable law.

In order for Credit Suisse and Credit Suisse UK to continue to manage the Funds, shareholders of each Fund must approve a new investment advisory agreement with Credit Suisse. In addition, the Credit Suisse Strategic Income Fund will also require shareholder approval of a new sub-advisory agreement between Credit Suisse and Credit Suisse UK. It is important to note that each Fund’s advisory fee rate under its new agreement will remain the same, and no changes to the investment objective(s), principal investment strategies and policies, principal risks, fundamental and non-fundamental investment policies, or portfolio managers (other than potential personnel changes outside of Credit Suisse’s control) of the Funds are currently contemplated as a result of the Merger.

PROPOSAL HIGHLIGHTS:

The proposed advisory/sub-advisory agreements are identical to the previous agreements in place prior to their termination due to the change of ownership, except for the dates of execution, effectiveness and termination and certain non-material changes.

ü  Same Portfolio Managers

ü  Same investment objectives and strategies

ü  Same advisory fees and expenses

IMPORTANT MILESTONES:

Record Date:	Friday, June 23, 2023
Anticipated Mail Date:	Wednesday, July 19, 2023
Meeting Date:	Thursday, August 24, 2023
Communications Campaign:	Monday, July 24, 2023

PROXY MATERIAL WILL CONSIST OF A PROXY STATEMENT, PROXY CARD AND BUSINESS RETURN ENVELOPE. SHAREHOLDERS WILL BE GIVEN THE OPTION TO VOTE ONLINE, TELEPHONICALLY OR BY MAIL. ALL VOTING INSTRUCTIONS ARE FOUND ON THE PROXY CARD PROVIDED IN THE PACKAGE.

WE NEED YOUR HELP IN COMMUNICATING WITH YOUR CLIENTS REGARDING THE IMPORTANCE OF VOTING IN HOPES TO SECURE THE VOTE BY THE MEETING DATE. Shareholders should have received their proxy information the week of July 24^th and it is extremely important that all holders vote, no matter the amount of shares they own, as there are tens of thousands of shareholders across all the Funds making every vote critical. Compounding that issue, approval of each new agreement will require the vote of (i) 67% of shares present at the meeting, if more than 50% of outstanding shares voting are present, or (ii) 50% of outstanding shares, whichever is less.

PROXY SOLICITATION CAMPAIGN - Will my clients get contacted? Since the approval of each Fund’s advisory agreement is extremely critical to the ongoing management of the Funds, we anticipate the need to reach out to certain holders who have not voted in hopes to record their vote. We are working with our solicitor to identify those holders; however, an outbound communications campaign is highly probable, which will include follow-up proxy material and potentially phone calls. Therefore, your clients could receive a courtesy call from AST Fund Solutions, LLC our proxy solicitor, reminding shareholders about the importance of voting and providing an option to vote at the time of the call.

For questions about this proxy, insight into what the shareholders will receive, and the voting process, please contact AST Fund Solutions, LLC at 877-674-6273 from Monday to Friday 9:00am to 10:00 pm eastern time.

Questions and Answers

Q. What funds are included in the proxy statement?

A. A joint special meeting of the funds listed below (each, a “Fund” and collectively, the “Funds”) will be held on Thursday, August 24, 2023 at 4 p.m., Eastern Time. You have received this letter because you were a shareholder of record of one of the Funds:

Credit Suisse Commodity Return Strategy Fund, a series of Credit Suisse Commodity Strategy Funds 

Credit Suisse Floating Rate High Income Fund, a series of Credit Suisse Opportunity Funds 

Credit Suisse Strategic Income Fund, a series of Credit Suisse Opportunity Funds 

Credit Suisse Managed Futures Strategy Fund, a series of Credit Suisse Opportunity Funds 

Credit Suisse Multialternative Strategy Fund, a series of Credit Suisse Opportunity Funds 

Commodity Return Strategy Portfolio, a series of Credit Suisse Trust 

Credit Suisse Asset Management Income Fund, Inc. 

Credit Suisse High Yield Bond Fund

The enclosed joint proxy statement describes a proposal to approve a new investment advisory agreement between your Fund and Credit Suisse Asset Management, LLC (“Credit Suisse”) and, solely with respect Credit Suisse Strategic Income Fund (the “Strategic Income Fund”), a proposal to approve a new sub-advisory agreement between Credit Suisse and Credit Suisse Asset Management Limited (“Credit Suisse UK”) with respect to such Fund.

Q. Who is asking for shareholders to vote?

A. The Board of Directors or Board of Trustees (each, a “Board”), as applicable, of each Fund is asking shareholders to vote at the meeting on the proposal(s) applicable to each Fund. Each Fund’s Board approved the Fund’s new investment advisory agreement (“New Investment Advisory Agreement(s)” and, in the case of the Strategic Income Fund, the new sub-advisory agreement (“New Sub-Advisory Agreement”) with respect to such Fund. Each Fund’s Board also voted to submit each new agreement to be voted upon by shareholders of the applicable Fund.

Q. Why should shareholders vote “FOR” in this proxy?

A. Shareholders are being asked to vote in favor of a proposal to approve the New Investment Advisory Agreement for each Fund. In addition, if you are a shareholder of the Strategic Income Fund, you are being asked to approve a New Sub-Advisory Agreement between Credit Suisse and Credit Suisse UK.

Q. Why are shareholders being asked to vote on the New Investment Advisory and New Sub-Advisory Agreements?

A. Shareholders are being asked to approve a New Investment Advisory Agreement(s) for their respective Fund(s) as a result of recent events involving CS Group and UBS Group. On June 12, 2023 (the “Closing Date”), CS Group merged with and into UBS Group, with UBS Group remaining as the surviving company, pursuant to a definitive merger agreement signed on March 19, 2023. Immediately prior to the Closing Date, CS Group was the ultimate parent company of the Credit Suisse Investment Advisers.

Each Fund was party to an investment advisory agreement with Credit Suisse and Credit Suisse was party to a sub-advisory agreement with Credit Suisse UK with respect to the Strategic Income Fund prior to the Closing Date (collectively, the “Prior Advisory Agreements”). As required by the 1940 Act, each Prior Advisory Agreement provided that the agreement would automatically terminate upon its assignment. The closing of the Merger was deemed to result in an assignment of each Prior Advisory Agreement, resulting in its automatic termination as of the Closing Date. Your Fund requires shareholder approval of its New Investment Advisory Agreement and the Strategic Income Fund requires shareholder approval of the New Sub-Advisory Agreement for the Funds to continue to receive investment advisory services from Credit Suisse and, in the case of the Strategic Income Fund, Credit Suisse UK.

Q. If the Prior Advisory Agreements terminated on the Closing Date, are there any investment advisory agreements in place for the Funds?

A. Yes. Prior to the Closing Date, the Board of each Fund approved an interim investment advisory agreement with Credit Suisse and, in the case of the Strategic Income Fund, an interim sub-advisory agreement between Credit Suisse and Credit Suisse UK (“Interim Advisory Agreements”). The Interim Advisory Agreements did not require shareholder approval and took effect on the Closing Date when the Prior Advisory Agreements were deemed to have terminated so that Credit Suisse and Credit Suisse UK could continue to manage the Funds following the Closing Date. Each Interim Advisory Agreement will terminate upon the earlier of shareholder approval of the corresponding New Investment Advisory Agreement or 150 days following the Closing Date which is November 9, 2023. Each Interim Advisory Agreement contains the same terms and conditions as the corresponding Prior Advisory Agreement except for the effective and termination dates, escrow provisions and certain non-material changes.

Q. What else is happening with Credit Suisse and the Funds?

A. On June 7, 2023, the Credit Suisse Investment Advisers and certain of their affiliates filed an application with the Securities and Exchange Commission (the “Commission”) for temporary and permanent orders granting an exemption to the Credit Suisse Investment Advisers and their affiliates, as well as to UBS Group and its affiliates (collectively, “UBS”), as further described below, from the prohibitions under Section 9(a) of the 1940 Act, in connection with a consent order and final judgment (“Consent Judgment”) filed in New Jersey Superior Court on October 24, 2022, which was entered against certain of Credit Suisse’s affiliates. Section 9(a) of the 1940 Act automatically prohibits entities that are, or whose affiliates are, subject to, among other things, certain court ordered “injunctions,” from serving or acting as investment adviser of any investment company registered under the 1940 Act or a principal underwriter for any registered open-end investment company under the 1940 Act, or, serving in various other capacities in respect of registered investment companies. The Consent Judgment did not involve any of the Funds or the services that the Credit Suisse Investment Advisers and their affiliates provided to the Funds. As further described in the Joint Proxy Statement sent to shareholders, as a result of the Consent Judgment, the Credit Suisse Investment Advisers could be disqualified from providing investment advisory services to the Funds without such an exemption, even though they did not engage in the conduct underlying the Consent Judgment, due to the broad scope of Section 9(a) of the 1940 Act. Upon learning of the terms of the Consent Judgment and the potential consequences thereof under Section 9(a), Credit Suisse promptly contacted the Boards and the Staff of the Commission.

The Commission granted a temporary exemption from Section 9(a) on June 7, 2023 to the Credit Suisse Investment Advisers and their affiliates, as well as to UBS, effective upon the Closing Date. The Credit Suisse Investment Advisers and certain of their affiliates also applied for a permanent order, which the Commission granted on July 5, 2023. The permanent order grants: (i) a time-limited exemption from Section 9(a) to the Credit Suisse Investment Advisers and certain of their affiliates (the “Time-Limited Exemption”), which enables the Credit Suisse Investment Advisers to provide investment advisory services to the Funds until June 12, 2024 (by which point such services are anticipated to be transitioned to one or more UBS Investment Advisers in the UBS Transition), and (ii) a permanent exemption from Section 9(a) to UBS (together with the Time-Limited Exemption, the “Permanent Order”).

Following the expiration of the Time-Limited Exemption, Credit Suisse and Credit Suisse UK will be disqualified from providing investment advisory services to the Funds. Accordingly, it is anticipated that the investment advisory services that the Credit Suisse Investment Advisers currently provide to the Funds will be transitioned to one or UBS Investment Advisers within one year of the Closing Date (i.e., on or prior to June 12, 2024) as part of the UBS Transition described above; however, the exact structure and timing of the UBS Transition have not yet been finalized.

Q. How do the New Investment Advisory Agreements and New Sub-Advisory Agreement, as applicable, differ from my Fund’s current agreement(s)?

A. Each New Investment Advisory Agreement and the New Sub-Advisory Agreement will be identical to the corresponding Prior Advisory Agreement, except for the dates of execution, effectiveness and termination and certain non-material changes.

Q. Will the Fund’s contractual advisory fee rates go up?

A. No.  Each Fund’s contractual advisory fee rates will not change as a result of the New Investment Advisory Agreement(s).

Q. Will the New Investment Advisory Agreements and New Sub-Advisory Agreement result in any changes in the portfolio management, investment objective or investment strategy of my Fund?

A. No changes to the investment objective(s), principal investment strategies and policies, principal risks, fundamental and non-fundamental investment policies, or portfolio managers (other than potential personnel changes outside of Credit Suisse’s control) of your Fund are currently contemplated as a result of the Merger.

Subject to shareholder approval of the New Investment Advisory Agreements and New Sub-Advisory Agreement, Credit Suisse and, in the case of the Strategic Income Fund, Credit Suisse UK, will manage the Funds until the UBS Transition is completed (i.e., on or prior to June 12, 2024). However, in connection with, or following the completion of, the UBS Transition, it is possible that there could be Fund-specific changes. The exact structure and timing of the UBS Transition and Fund-specific changes (if any) related to the UBS Transition have not yet been finalized. Any Fund-specific changes would be implemented without shareholder approval to the extent permitted under the federal securities laws (except for any changes to a Fund’s fundamental investment policies, which would require shareholder approval). Shareholders of a Fund will be promptly notified of any material Fund-specific changes.

Q. What happens if New Investment Advisory Agreement and New Sub-advisory Agreement are not approved for my Fund?

A. If shareholders do not approve the New Investment Advisory Agreement(s) and/or a New Sub-Advisory Agreement, as applicable, Credit Suisse and Credit Suisse UK, as applicable, will not be able to provide investment advisory services for any applicable Fund following the expiration of the 150-day period following the closing of the Merger, which will occur on November 9, 2023 and that Fund may be forced to liquidate.

Shareholder vote to approve the New Investment Advisory Agreement(s) is necessary to ensure that Credit Suisse and, in the case of the Strategic Income Fund, Credit Suisse UK, can continue to manage the Funds until the UBS Transition is completed within one year of the Closing Date (i.e., June 12, 2024).

Q. Will there be any changes to each Fund’s custodian or other service providers as a result of the Merger?

A. No changes are being proposed to each Fund’s custodian, administrator, distributor and transfer agent, as applicable, or the fees currently charged to the Funds by such service providers at this time. However, it is expected that, subject to Board approval, one or more service providers will change prior to the 12-month anniversary of the Closing Date of the Merger in connection with the UBS Transition.

Q. Who is paying for this proxy statement?

A. All costs of the proxy and the shareholder meetings, including proxy solicitation costs, legal fees and the costs of printing and mailing the proxy statement, will be borne by Credit Suisse.

Q. How do shareholders vote?

A. ·  By telephone: Call the toll-free number printed on the enclosed proxy card(s) and follow the directions.

· By Internet: Access the website address printed on the enclosed proxy card(s) and follow the directions on the website.

· By mail: Complete, sign and date the proxy card(s) you received and return in the self-addressed, postage-paid envelope.

· At the meeting: Vote your shares at the meeting scheduled to be held on Thursday, August 24, 2023 at 4 p.m., Eastern Time. Please see the Question and Answer below regarding the location of the meeting.

Q. When and where is the meeting scheduled to be held?

A. The meeting will be held at the offices of the Funds, Eleven Madison Avenue, Floor 2B, New York, New York 10010, on Thursday, August 24, 2023 at 4 p.m., Eastern Time

Q. What if my client owns more than one investment?

A. If a shareholder owns more than one Fund on the Record Date, they will receive more than one proxy card. Please have your client sign, date and return EACH proxy card they receive, or vote on the proposal with respect to EACH Fund they own using any of the other convenient options such as by telephone or Internet set forth on their proxy card.

Q. Whom do I call if I have question about voting this proxy?

A. If you need more information, or have any questions about voting, please call the Funds’ proxy solicitor, AST Fund Solutions, LLC at 877-674-6273.

Q. Will anyone contact my clients?

A. Shareholders may receive a call to verify that they received the proxy materials, or to answer any questions about the proposals and to encourage participation by voting.