 Ballard Power Systems Inc NASDAQ:BLDP TSE:BLD was the target of some unusual options trading on Monday. Investors purchased 12,641 call options on the stock. This represents an increase of 410 compared to the typical volume of 2,478 call options. Shares of NASDAQ BLDP traded up 1.72 during trading hours on Monday, hitting 15.37. 245,020 shares ... 