I don't fully get your example, but how possibly could you buy an ITM call for cheaper than the stock?
As I read this, he sold a call rather than selling stock he already held.
Assuming the stock gets called away he accomplished the same as selling the stock, but at a better equivalent price.
I've been resisting trading options so far but this is a case that makes me re-think that. I'll often have standing buy of sell orders a ways away from the current price.
Robert Morse mentioned selling options in a few other threads and perhaps it worth more consideration.
