Losses from the surprise move by the Swiss National Bank nearly crippled brokerage FXCM (FXCM.N), but all the attention has resulted in a surge of activity among options traders on the online forex broker. FXCM’s shares fell nearly 90 percent on Tuesday after the company faced $225 million in losses on the SNB’s shock decision last week to remove the cap on the Swiss franc. It then agreed to an emergency loan from Leucadia National Corp (LUK.N). The loan kept FXCM from falling short of regulatory requirements that could have kept it from operating.