TD Ameritrade (AMTD) will buy thinkorswim Group (SWIM) for $606M in stock and cash to expand its...

|About: TD Ameritrade Holding Co... (AMTD)|By:, SA News Editor

TD Ameritrade (AMTD) will buy thinkorswim Group (SWIM) for $606M in stock and cash to expand its online brokerage. The deal values SWIM at around $8.71/share, a 54.1% premium to yesterday's closing price. Premarket: AMTD -7.3%, SWIM +40.7%.