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The top 6 most optioned stocks

Stock options give investors a great tool to control risks or speculate on stocks. Call options give investors the right to buy the stock and are typically considered a bullish tool, while puts give investors the right to sell the stock and are typically considered a bearish bet on the future price movement of the stocks. I was interested in seeing what equities have the highest open interest or most outstanding options issued on them looking at all strikes and all months (excluding ETFs).

The top six stocks with most options issued are:

Citigroup (NYSE: C) has an open interest of 5,366,521 options, 2,751,255 are calls and 2,615,266 are puts. The stock has been trending down with the rest of the financials for the last year. Speculation now appears equal with about the same number of calls and puts traded.

Bank of America (NYSE: BAC) has an open interest of 5,204,313 options; 2,575,909 are calls and 2,628,404 are puts. Like Citigroup, this stock has seen its price cut in half over the last year.

General Electric (NYSE: GE) has an open interest of 3,877,635 options; 2,138,926 are calls and 1,738,709 are puts. With 23% more calls than puts outstanding, speculators look slightly bullish on GE.

Microsoft (NASDAQ: MSFT) has an open interest of 3,657,802 options; 2,013,269 are calls and 1,644,533 are puts. Considering the recent bid by Microsoft for Yahoo, it is not surprising to see a lot of option activity on the stock.

Yahoo (NASDAQ: YHOO) has an open interest of 3,487,673 options; 2,334,081 are calls and 1,1535,92 are puts. With more calls than puts, speculators appear bullish on Yahoo and hopeful Microsoft will buy it.

General Motors (NYSE: GM) has an open interest of 2,890,848 options; 1,078,580 are calls and 1,812,268 are puts. Slumping sales in the auto industry brought on by high gas prices could be why there are more bearish put bets on GM.

Since each option contract controls 100 shares of the stock, 2.8 million GM contracts could represent 280 millions shares of the stock, or over half of the 566 million outstanding shares of GM stock. (In reality, it is less because of advanced multi-legged trades and arbitrage.) Regardless, these represent some big bets on the underlying companies.

Kevin Kersten is an Stock and Options Analyst with InvestorsObserver.com. Disclosure note: Mr. Kersten owns and/or controls a diversified portfolio of long and short positions that may include holdings in companies he writes about.

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Last updated: November 26, 2009: 06:03 AM

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