Voices

Return of Day Traders Drives Rise in Volume

Even as mom-and-pop investors sit out the rally, short-term players–including some classic individual day traders–appear to be making a comeback. Trading volume surged 14 percent or more last month from July at online brokerage firms Charles Schwab Corp., TD Ameritrade Holding Corp. and E*Trade Financial Corp. Electronic trader Knight Capital Group Inc. also posted a 7.7 percent increase.