EX-99.77O RULE 10F-3 4 th8210f3.txt 10F3 Credit Suisse High Yield Bond Fund Securities Purchases during an Underwriting involving Credit Suisse Aset Management, LLC subject to Rule 10f-3 under the Investment Company Act of 1940. For the period ended October 31, 2002 Portfolio: Credit Suisse High Yield Bond Fund Security: On Semiconductor Copr SEC 144A Date Purchased: 5/1/02 Price Per Share: $96.90 Shares Purchased by the Portfolio *: 1,000 Total Principal Purchased $96,900 % of Offering Purchased by the Portfolio: 0.33333% Broker: Morgan Stanley & Co. Inc. Member: CS First Boston Portfolio: Credit Suisse High Yield Bond Fund Security: IESI Copr 144A W REG/RTS Date Purchased: 6/7/02 Price Per Share: $100.00 Shares Purchased by the Portfolio *: 2,000 Total Principal Purchased $200,000 % of Offering Purchased by the Portfolio: 1.33333% Broker: Salomon Brothers Member: CS First Boston Portfolio: Credit Suisse High Yield Bond Fund Security: Metaldyne Corp. 144A WREG/RTS Date Purchased: 6/13/02 Price Per Share: $100.00 Shares Purchased by the Portfolio *: 1,200 Total Principal Purchased by the Portfolio *: $120,000 % of Offering Purchased by the Portfolio: 0.48000% Broker: Chase Manhattan Bank Member: CS First Boston Portfolio: Credit Suisse High Yield Bond Fund Security: Burns Philip Cap Pty Bond 144A Date Purchased: 6/14/02 Price Per Share: $100.00 Shares Purchased by the Portfolio *: 1,100 Total Principal Purchased by the Portfolio *: $110,000 % of Offering Purchased by the Portfolio: 0.27500% Broker: Toronto dominion Securities Inc. Member: CS First Boston Portfolio: Credit Suisse High Yield Bond Fund Security: Berry Plastics Corp bond 144A Date Purchased: 6/17/02 Price Per Share: $100.00 Shares Purchased by the Portfolio *: 1,100 Total Principal Purchased by the Portfolio *: $110,000 % of Offering Purchased by the Portfolio: 0.44000% Broker: Chase Manhattan Bank Member: CS First Boston