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· Covered -- The writer of the option owns the
underlying stock or asset. The safest way to sell an option is to write what is known as a "covered call". This strategy is so safe, in fact, that it is suitable for most retirement (IRA) accounts. In this type of trade, the investor sells a call option on an underlying stock that he/she already owns. This trade is usually made in an effort to generate additional income from a particular holding. Here is how the process works: Now consider the following scenarios: IBM trades at $110 at expiration. In this scenario, the writer was too conservative in his estimate of where IBM would trade this month. The writer will therefore be obligated to sell 100 shares to the buyer of the call option for $105 each. The net impact to the options seller is $105 (for selling the stock) + $3 (for selling the option) to yield $108. This will be the net result for the seller no matter how high IBM's shares soar. So, as you can see, by selling a covered call, the option writer has limited his/her upside potential. In return, he/she received $300 for the sale of the option contract. IBM trades at $103 at expiration. In this scenario, the writer was accurate in his/her estimate. The writer is not obligated to sell his/her shares because the buyer would not want to buy them at $105 (after all, the buyer could instead purchase them in the open market for just $103). The net result is that the investor generates $300 in additional income while still keeping his/her stock, which also gained $300 during the month. IBM trades at $95 at expiration. In this scenario, the
investor overestimated the return on the stock. Although the investor will have
suffered a $5 loss in his/her stock holdings, this loss will be buffered by the
$3 premium received for writing the call. The investor will still hold his/her
shares, and will have lost just $200 in total (versus $500 if he/she hadn't sold
the call option). The covered call strategy works best when the investor plans on holding the underlying stock for a long period but does not expect a significant increase in the near term. As you can see from the diagram above, the investor is limiting his/her upside potential to $8 in return for a guaranteed $3 premium. If shares of IBM tank, then the investor's losses can still be significant. However, if the stock declines, then thanks to the options sale the investor will always be $3 better off than if he/she had merely held the stock alone. (Please note that you can also employ a similar strategy by shorting a stock and selling a put against the position. This is referred to as writing a covered put.) Naked Option Writing For obvious reasons, naked option writing is only available to experienced or expert traders. This is because the investor is taking on a possibly unlimited amount of risk in exchange for a fixed premium. Why is the potential risk unlimited when it comes to selling naked options? Well, in the example above, the investor already owned IBM stock, so even if IBM rapidly appreciated (the worst-case scenario), the investor could simply sell his/her stock for a lower-than-market price. However, if the investor had written a naked call option (in other words, he/she did not own IBM and still sold this call option), then the result could have been devastating. Suppose that IBM developed a revolutionary technology and the stock price doubled in a short period of time to $200 (not a likely scenario, but it can happen nonetheless). The investor who sold the option for $3 would now have to sell IBM stock to the option purchaser for the agreed upon price of $105. However, the market price of IBM stock is now $200. In order to deliver the stock to the option buyer, the option writer must purchase IBM in the open market for $200, then sell those same shares immediately to the option buyer for $105. If you factor in the $3 that the option writer initially received for selling the contract, then his/her total losses would be a whopping $92 per contract in this case. Note: To offset this risk of dramatic losses, some investors will sell an option with a lower strike price and simultaneously purchase an option with a higher strike price. This technique lowers the return the investor receives, but it also limits the losses that he/she might incur. Conclusion In our next lesson we'll take a look at how you can use options to hedge your overall portfolio against steep losses.
-- Jeff Bishop
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