Ameritrade Holding Corp. said Friday that its core online brokerage account base grew last month by 24,000.

The Omaha discount brokerage company, which has 3 million accounts, also said that its average daily trading volume in July was 161,000.

Ameritrade's profits have improved as retail investors have returned to the equity markets. On July 22, it reported that its earnings for its fiscal third quarter, which ended June 30, jumped sevenfold from its total for all of last year, to a record $49.9 million.

Subscribe Now

Access to premium content including in-depth coverage of mutual funds, hedge funds, 401(K)s, 529 plans, and more.

3-Week Free Trial

Insight and analysis into the management, marketing, operations and technology of the asset management industry.