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March 6, 2014

Weekly Options and Time Decay

There are so many different characteristics of options that I talk a lot about with my options coaching students. But one of the more popular subjects is that premium sellers see the most dramatic erosion of the time value of options they have sold during the last week of the options cycle. Most premium sellers strive to keep the options they have sold short (also known as options they have “written”) out-of-the-money (OTM) in order that the entirety of the premium they have sold represents time (extrinsic) premium and is subject to this rapid time decay.

With 12 monthly cycles, there historically have been only 12 of these final weeks per year in which premium sellers have seen the maximum benefit of their core strategy. The widespread use of weekly options has changed the playing field. Options with one week durations are available on several indices and several hundred different stocks. These options have been in existence since October 2005 but only in the past couple of years have they gained widespread recognition and achieved sufficient trading volume to have good liquidity. Further now, there are weeklys that go for consecutive weeks (1 week options, 2 week options, 3 week options, 4 week options and 5 week options) that were just late last year.

Standard trading strategies employed by premium sellers can be executed in these options. The advantage is to gain the “sweet spot” of the time decay of premium without having to wait through the entirety of the 4 to 5 week option cycle. The party never ends for premium sellers using these innovative methods. Of course there is a trade-off because the shorter the time there is left until expiration, the smaller the option premiums are compared to an option with a longer expiration. As option traders we are used to tradeoffs.

Traders interested in using these weeklys MUST understand settlement procedures and be aware of last days for trading. An excellent discussion of weeklies given by Dan Passarelli is available at Learn to Trade Weeklys.

John Kmiecik

Senior Options Instructor

Market Taker Mentoring