Las Vegas Sands (LVS) is up 72 cents to $17.53 and Feb 18 and 19 calls are seeing heavy trading ahead of earnings, tomorrow after the bell. The top two trades: 3688X2 Feb 18s at 42 and 46 cents per contract — possibly premium sellers. Meanwhile, Feb 19 calls are the most actives. 18,400 traded (58 percent bid). So, while calls are dominating the action, sentiment seems mixed. Implied volatility little changed around 62. 64K calls and 17K puts traded total.