Motley Fool Stock Advisor pick optionsXpress (NASDAQ:OXPS) recently announced its monthly numbers for August. Although the company posted solid year-over-year growth, it wasn't immune to the jump in volatility and fearfulness that plagued the market in the past month.

optionsXpress, an online broker that competes with the likes of E*Trade (NASDAQ:ETFC), TD AMERITRADE (NASDAQ:AMTD), Schwab (NYSE:SCH), and Investools (NASDAQ:SWIM), posted decent numbers compared to last year. Daily average revenue trades, net new customer accounts, and ending client assets grew a respective 58%, 27%, and 25% compared to last year. However, on a sequential basis, those same metrics showed respective -10%, 2%, and -1% changes from the previous month.

All in all, I wouldn't read too much into the results. The markets are extremely jittery, which resulted in a loss of confidence and accounted for optionsXpress's lackluster sequential growth. One month is probably far too short a time period to judge optionsXpress' long-term prospects.

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Fool contributor Emil Lee is an analyst and a disciple of value investing. He doesn't own shares in any of the companies mentioned above. Emil appreciates your comments, concerns, and complaints. The Motley Fool's disclosure policy keeps its options open.