Last week, at least four major banks restricted new trades involving the Swiss bank or its securities while Credit Suisse worked to restore investor confidence and stop its shares from plummeting. A leveraged finance banker said that they were scrutinizing debt issuances that banker was an agent for to see if they are affected by Credit Suisse. Credit Suisse declined comment. Since the turmoil facing Credit Suisse and regional banks began, banks have put much of their previously planned underwriting on hold until market volatility dies down, the leveraged finance banker said. They are not the only ones treading cautiously with Credit Suisse.

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