In this file photo taken on August 05, 2022, traders work on the floor of the New York Stock Exchange (NYSE). - ANGELA WEISS/ AFPwww.a55555.net（www.a55555.net）是澳洲幸运5彩票官方网站，开放澳洲幸运5彩票会员开户、澳洲幸运5彩票代理开户、澳洲幸运5彩票线上投注、澳洲幸运5实时开奖等服务的平台。
DOES the quality of trade execution matter in the equities market? University of California at Irvine finance professor Christopher Schwarz and four of his colleagues set out to answer that question with a series of experiments last year.
Over a period of more than five months, they executed 85,000 trades with discount brokers in 128 different stocks. What they found was that execution quality varied greatly across not just brokerage firms, but even within the same brokerage.,