Cbapter 2: Covered Call Writing 91 Covered writing against warrants is not a frequent practice because of the small number of warrants on optionable stocks and the problems inherent in checking available returns. However, in certain circumstances, the writer may actually gain a decided advantage by writing against a deep in-the-money warrant. It is often not advisable to write against a warrant that is at- or out-of-the-money, since it can decline by a large percentage if the underlying stock drops in price, producing a high­ risk position. Also, the writer's investment may increase in this case if he rolls down to an option with a striking price lower than the warrant's exercise price. WRITING AGAINST LEAPS A form of covered call writing can be constructed by buying LEAPS call options and selling shorter-term out-of-the-money calls against them. This strategy is much like writing calls against warrants. This strategy is discussed in more detail in Chapter 25 on LEAPS, under the subject of diagonal spreads. PERCS The PERCS (Preferred Equity Redemption Cumulative Stock) is a form of covered writing. It is discussed in Chapter 32. THE INCREMENTAL RETURN CONCEPT OF COVERED WRITING The incremental return concept of covered call writing is a way in which the covered writer can earn the full value of stock appreciation between todays stock price and a target sale price, which may be substantially higher. At the same time, the writer can earn an incremental, positive return from writing options. Many institutional investors are somewhat apprehensive about covered call writing because of the upside limit that is placed on profit potential. If a call is writ­ ten against a stock that subsequently declines in price, most institutional managers would not view this as an unfavorable situation, since they would be outperforming all managers who owned the stock and who did not write a call. However, if the stock rises substantially after the call is written, many institutional managers do not like having their profits limited by the written call. This strategy is not only for institu­ tional money managers, although one should have a relatively substantial holding in an underlying stock to attempt the strategy - at least 500 shares and preferably 1,000 shares or more. The incremental return concept can be used by anyone who is plan­ ning to hold his stock, even if it should temporarily decline in price, until it reaches a predetermined, higher price at which he is willing to sell the stock.