Yahoo (YHOO) adds 72 cents to $13.63 and options on the Internet giant are busy today after the company said Carol Bartz has been removed as Chief Executive. Shares are rallying around the news and one investor sells 26,000 Oct 20 calls on YHOO at 7 cents. It’s likely a closing trade, as the contract is 46.7 percent OTM and has 178,837 in open interest, which is the largest position in Yahoo today. Another 27,000 recently traded at 7 cents. Today’s volume of 55,000 represents 31 percent of the existing OI in the contract. 94,000 calls and 14,000 puts traded in Yahoo total and implied volatility in the options on stock, which jumped 14 percent Tuesday (see 9/6 color), is flat today at 54.