'Smart Money' Stays on the Sides

In recent days, Steven Cohen, the hedge-fund manager who runs the $14 billion SAC Capital Advisors, moved about half his funds, or about $7 billion, into money-market and other short-term securities, eliminating much of his fund's exposure to the stock market, says a person close to the fund. Mr. Cohen plans on sitting on the sidelines for the rest of the year -- trading a small portfolio himself but keeping shuttered most of the stock portfolios of his other managers.

Israel Englander, who runs the $14 billion Millennium Partners fund, has shifted about $6 billion from the stock market into cash, a person close to the fund says.

Meanwhile, John Paulson, manager of $35 billion Paulson & Co. -- who made a spectacularly successful bet against the housing market last year -- has much of his fund in cash equivalents.