DOW JONES NEWSWIRES TD Ameritrade Holding Corp. (AMTD) reported its volume of daily client trades declined in February from a year earlier but moved higher from January. It was the second straight month of sequential trading growth for the online brokerage, though concerns about the global economy and Europe's debt crisis have continued to weigh on the market. TD Ameritrade posted an average of 409,000 client trades a day last month, up 9% from January but down 10% from a year earlier. As of the end of February, the brokerage's client assets totaled $441.8 billion, up 4% month-to-month and 8% year-to year. TD Ameritrade in January reported its fiscal first-quarter earnings rose 4.8% as a tight control on expenses helped the online brokerage offset a surprise decline in revenue. Shares closed Wednesday at $18.70 and were inactive in premarket trade. The stock is up 19.5% since the start of the year. -By Tess Stynes, Dow Jones Newswires; 212-416-2481; Tess.Stynes@dowjones.com