Options traders are call skewed, per the stock's 10-day call/put volume ratio of 2.53 at the International Securities Exchange (ISE), Chicago Board Options Exchange (CBOE), and NASDAQ OMX PHLX (PHLX) that sits higher than 93% of annual readings. At last look, over 51,000 contracts have already changed hands today, volume that's 11 times the average intraday amount. The weekly 4/24 220-strike put is the most popular, with new positions being sold to open. Whatever the motive, IBM's Schaeffer's Volatility Sco ...