S. stock market fell about 4% in that stretch.But Renaissance Institutional Equities slid 8.7%.Another big quant fund, AQR Capital Management, lost 13%.

• 美国大盘在风暴中跌了4%25，但“复兴机构股票”跌了8.；7%25，另一家定量基金AQR资产管理跌了13%25。