Was it skill, dumb luck—or something more sinister? That's what traders are asking about a big, longshot bet on Sodastream that returned some 3,000 percent in just two hours. Two minutes before 10 a.m. ET on Thursday, one options trader bought 500 weekly 30-strike calls in Sodastream for 15 cents each (or $15 per contract, given that each contract controls 100 shares) that expire Friday. It was by far the biggest Sodastream trade of the day in terms of the number of contracts. The purchase gives the trader the right to buy Sodastream shares for $30 at the close of Friday trading. The reason those options were so ... (full story)