It comes in several flavours, sometimes stated as 80%, 90%, or whatever. It is the maxim that most options expire worthless. It is repeated so often out there in the marketplace, it is taken as a given and used as a justification to be a nett seller of options and/or promote option selling @education". It is repeated, as a mantra, by some of the most well known folks in optionland. There is only one problem, it's bullshit.
I like being a nett seller of options too, but the reason has nothing to do with the statistic of how many options expire worthless. As I sated in my previous post, it rather depends what strike one sells that dictates the probability of an option expiring out of the money. I like selling options for mostly psychological reasons; what I do has evolved mostly because of my personality direction picking prowess (poor) and how I like to trade.
Let's look at the actual figures according to the Chicago Board Options Exchange:
About 10% of options are exercised during each cycle. That means the other 90% must expire worthless, right?
Wrong! In fact over 60% of all options are traded out in the marketplace before expiry. These could be in, out or at the money.
That leaves approximately 30% of options expire that expire worthless in each monthly cycle.
Can anything be gleaned from this regarding being a buyer or seller? Absolutely not, there are so many different strikes, strategies and combinations which are not given in this statistic that further analysis is impossible.