Titanium Metals (TIE) adds 81 cents to $16 and options volume is heating up on the Dallas, TX metals company, with about 17,000 calls and only 360 puts traded on the stock so far. Dec 16 calls, which are at-the-money and have 11 days of life remaning, are the most actives. 6,190 contracts changed hands. Dec 17, Dec 18, Dec 19, and Jan 17.5 calls are seeing interest as well. Speculative call buying has lifted implied volatility in the options on the stock up 22 percent to 57.