ニューヨーク・タイムズ LEGACY OF THE '87 CRASH; Assessing The Role of Mutual Fund Investors OCT. 19, 1997; "In the first half-hour of trading in the United States on Oct. 19, the Brady report said, Fidelity sold $500 million worth of stocks on the New York Stock Exchange -- roughly 25 percent of the Big Board's total volume in that period. "