Yahoo (YHOO) loses a penny to $15.81 and one strategist sells 10,000 Jan 12.5 puts on the Internet giant at 89 cents and 17,500 Jan 20 calls at 57 cents — possibly exiting a trade and/or betting that the stock will stay between $12.5 and 20 through the Jan 2013 expiration. Why not. YHOO has been trading sideways in a narrow range for months and is basically at the same levels today as it was 2 years ago. Separately, it appears Jun 16 – 19 calls spreads are being sold on Yahoo at $1, 9750X on AMEX. It’s possibly closing or a position adjustment. Meanwhile, implied vols in YHOO have eased 1.5 percent to 26 Tuesday and are not far from the 52-week lows of 25.9 set Friday.