Brokerage TradeStation Group Inc. said Tuesday daily average revenue trades, or DARTS, jumped 28 percent during the month ended May 31.
TradeStation said DARTS surged 28 percent to 88,180, compared with May 2007.
Total client assets grew 11 percent to $1.8 billion as of May 31.
Also, client credit balances rose 14 percent to $627 million and margin balances jumped 24 percent to $92 million.