Investment Approach

The fund seeks long term capital appreciation above its benchmark, the Credit Suisse Leveraged Loan Index, by investing in a diversified portfolio consisting primarily of senior secured loans to non-investment grade companies. Portfolio selection is based on research-driven investment philosophy consisting of bottom-up, fundamental analysis of senior secured bank loans and other debt securities.

Fund Goal and Investment Risks The fund’s primary investment objective is to provide a high level of current income and its secondary objective is capital appreciation.

Portfolios contain investments rated below investment grade. These investments are speculative in nature and are considered to have a high degree of investment risk. Such assets have greater default risks, greater exposure to market volatility and liquidity risks when compared to investment grade debt obligations.

There may be limited liquidity for some of the securities that the funds invest in due to the lack of a secondary market, while transfer restrictions on the securities will further limit.

Portfolios invest in globally denominated assets, some of which may be subject to a greater degree of regional economic conditions and sovereignty risks.

As portfolio investments may be denominated in currencies other than the reference currency, the overall value can be impacted by changing exchange rates.

Investment Team The Credit Suisse Credit Investments Group is responsible for the day-to-day portfolio management of the fund. The current team members are John G. Popp, a Managing Director, Thomas J. Flannery, a Managing Director, Wing Chan, a Director, and Louis Farano, a Director. Messrs. Popp, Flannery, Farano and Ms. Chan have been members of the Credit Suisse Credit Investments Group since 1997, 1998, 2006 and 2005, respectively.

June 30, 2014

1 Percentages and characteristics are as of 6/30/14 and may have changed subsequently. This is not a recommendation to purchase or sell securities. Quality ratings by Moody’s Investors

Service or Standard & Poor’s Rating Group or, if unrated, deemed by Credit Suisse Asset Management, LLC to be of equivalent quality.

2 Duration is a measure of the expected life of a fixed-income security that is used to determine the sensitivity of a security’s prices to changes in interest rates. The longer a security’s

duration, the more sensitive it will be to changes in interest rates. 3 The current maximum initial sales charge for Class A shares is 4.75%, and is waived with respect to certain investment advisory clients, investors in employee retirement, stock, bonus,

pension or profit-sharing plans, certain registered investment advisers and broker-dealers with clients participating in comprehensive fee programs, and certain other investors. The current

maximum contingent deferred sales charge (“CDSC”) for Class B shares is 4.00% during the first year, which declines to 0% after the fourth year. The current maximum CDSC for Class C

shares is 1.00% during the first year.

.

Source: Credit Suisse Asset Management, LLC, Bloomberg

Fund Statistics1

Top Security Types %1 Top Ten Holdings (in % of Fund)1

Quality of Fund (% of Fund)1

Fund Facts

Net Assets ($ Millions) 1,947.1 Number of Issuers 297 Average Credit Quality B+

Average Effective Maturity (yrs) 5.28 Duration (yrs)2 0.44 Dividends Paid Monthly

Hilton Worldwide Finance 1.01

Valeant Pharmaceuticals 0.99

BJ’s Wholesale Club 0.95

Axalta Coating Systems 0.92

Zayo Group 0.90

Par Pharmaceutical 0.89

Tribune Company 0.87

Husky Injection Molding Systems 0.87

Live Nation Worldwide 0.86

Chromaflo Technologies 0.84

Total 9.08

Class A Class B Class C Class I

Ticker Symbol CHIAX CHOBX CHICX CSHIX

CUSIP 22540S877 22540S869 22540S851 22540S836

NAV on 6/30/14 $6.99 $7.01 $7.01 $6.96

52 Week High $7.01 $7.03 $7.03 $6.98

52 Week High Date 1/24/2014 1/24/2014 1/24/2014 1/23/2014

52 Week Low $6.93 $6.94 $6.95 $6.90

52 Week Low Date 7/9/2013 7/2/2013 7/9/2013 7/9/2013

Maximum Sales Charge3 4.75% 4.00% 1.00% --

Senior Loans(83.08)

High YieldBonds (8.82)

Cash andOther (2.85)

Asset-BackedSecurities

(5.25)

Contact Information

800-577-2321

www.credit-suisse.com/us/funds

Credit Suisse

Floating Rate High Income Fund

Asset Management

0.00% 0.20% 2.30%

38.81%

52.82%

3.03%0.00% 2.85%

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

AA A BBB BB B CCC and below NR Short Term

*On June 3rd, 2011, the “Credit Suisse High Income Fund” changed its name to the “Credit Suisse Floating Rate High Income Fund. For more information please see the prospectus.

A Estimated fees and expenses are taken from the prospectus dated 2/28/14. Net fees are reported net of fee waivers and expense reimbursements. Gross fees do not include these waivers or reimbursements. Waivers and expense reimbursements or credits are voluntary and can be discontinued at any time. B Without waivers and/or reimbursements, the yields would have been: for Class I shares, 3.76%; for Class A shares, 3.51%; for Class B shares,

2.76%; and for C shares, 2.76%. C Credit Suisse Leveraged Loan Index is designed to mirror the investable universe of the U.S. dollar denominated leveraged loan market. Investors cannot invest directly in an index. Fund shares are not deposits or other obligations of Credit Suisse Asset Management, LLC or any affiliate, are not insured by the Federal Deposit Insurance Corporation and are not guaranteed by Credit Suisse Asset Management, LLC or any affiliate. Fund investments are subject to investment risks, including loss of your investment.

The fund’s investment objectives, risks, charges and expenses (which should be considered carefully before investing), and more complete

information about the fund, are provided in the Prospectus, which should be read carefully before investing. You may obtain copies by calling 800-577-

2321. For up-to-date performance, please visit our website at www.credit-suisse.com/us/funds. CREDIT SUISSE SECURITIES (USA), LLC, DISTRIBUTOR

Copyright © 2014 by CREDIT SUISSE GROUP AG and/or its affiliates. All rights reserved.

Fund Performance*

From time to time, the fund’s investment adviser and co-administrators may waive some fees and/or reimburse some expenses at any time, without which performance would be lower. Waivers and/or reimbursements are subject to change. Returns represent past performance and include change in share price and reinvestment of dividends and capital gains. Past performance is no guarantee of future results. The current performance of the fund may be lower or higher than the figures shown. The fund’s yield, returns and share price will fluctuate, and redemption value may be more or less than original cost. Performance information current to the most recent month-end is available at www.credit-suisse.com/us/funds.

Performance as of 6/30/14

Average Annual Total Returns

Class Inception

Gross Expense Ratio A

Net Expense Ratio A

30-Day Ann. SEC

Yield B

Year to Date Returns 6/30/14

1 Year 3 Year 5 Year 10 Year Since Class Inception

Class I 08/01/00 0.79% 0.70% 3.86% 2.16% 5.21% 5.50% 11.21% 6.96% 6.92%

Class A (without sales charge) 03/08/99 1.04% 0.95% 3.61% 1.89% 4.78% 5.22% 10.93% 6.71% 6.44%

Class A (with max. – sales charge)B 03/08/99 5.79% 0.95% 3.43% (2.97%) (0.26%) 3.52% 9.85% 6.19% 6.10%

Class B (without sales charge) 03/08/99 1.79% 1.70% 2.85% 1.51% 4.15% 4.43% 10.11% 5.92% 5.63%

Class B (with max. 4.00% sales charge)B 03/08/99 5.79% 1.70% 2.85% (2.49%) 0.15% 3.82% 10.11% 5.92% 5.63%

Class C (without sales charge) 02/28/00 1.79% 1.70% 2.86% 1.51% 3.99% 4.43% 10.07% 5.90% 5.71%

Class C (with max. 1.00% sales charge)B 02/28/00 2.79% 1.70% 2.86% 0.51% 2.99% 4.43% 10.07% 5.90% 5.71%

Credit Suisse Leveraged Loan IndexC 2.77% 6.11% 5.68% 8.79% 5.03%

Credit Suisse Floating Rate High Income Fund

HI-FS

Asset Management