optionsXpress Reports Key Monthly Performance Metrics for April 2008

optionsXpress Holdings, Inc. (Nasdaq-GS: OXPS) today reported key monthly performance metrics for April. Highlights for the month included: Daily average revenue trades (DARTs) of 37,100 – 16% higher than April 2007, 2% lower than March 2008 Net new customer accounts of 5,400. Ending customer accounts of 282,500 – 24% higher than April 2007, 2% higher than March 2008 Ending client assets of $5.7 billion – 11% higher than April 2007, 5% higher than March 2008 Ending margin balances of $198 million – 44% higher than April 2007, flat with March 2008 "Our customers continued to exhibit resilience in April as trading levels remained solid driven by improved option DARTs, which were up 3% from March and 21% over last April,” commented David Fisher, Chief Executive Officer of optionsXpress. "In addition, net new accounts, one of our key long-term growth drivers, hit its highest level in nearly two years buoyed by the IRA season. This growth demonstrates our ability to attract new customers even in uncertain markets.” About optionsXpress Holdings, Inc. optionsXpress Holdings, Inc., a pioneer in equity options and futures trading, offers an innovative suite of online brokerage services for investor education, strategy evaluation and trade execution. optionsXpress Holdings subsidiaries include optionsXpress, Inc., a retail online brokerage specializing in options and futures, and brokersXpress, LLC, an online trading and reporting platform for independent investment professionals. Barron's named optionsXpress the number one online broker for four years in a row (2003 to 2006) and Kiplinger's Personal Finance named it the top discount broker in 2006. More information can be found in the Investor Relations section of optionsXpress' website at http://www.optionsxpress.com/investor. Safe Harbor This press release may contain forward-looking statements. These statements relate to future events or our future financial performance and involve known and unknown risks. We urge you to carefully consider these risks in evaluating the information in this press release, including risks related to general economic conditions, regulatory developments, the competitive landscape, the volume of securities trading generally or by our customers specifically and other risks described in our filings with the Securities and Exchange Commission. In some cases, you can identify forward- looking statements by terminology such as "may," "will," "should," "expects," "intends," "plans," "anticipates," "believes," "estimates," "predicts," "potential," "continue" or the negative of these terms or other comparable terminology. These statements are only predictions. Actual events or results may differ materially. The forward-looking statements made in this press release relate only to events as of the date of this release. We undertake no ongoing obligation to update these statements.