Though trading in the company's fiscal third quarter that ended on June 30 was higher than expected in the traditionally slow early summer season, TD Ameritrade does not expect a rise in interest rates nor the kind of stock market growth that compels retail customers to trade, Gerber and Chief Executive Fred Tomczyk said in a call with analysts after reporting third-quarter results.

(Reporting By Jed Horowitz; Editing by Chizu Nomiyama)