Curious, one can turn around and sell the option as long as expiration is not in the immediate future, but if the option is in the money, and is expiring in 7 seconds, one HAS to call the stock or otherwise have it expire worthless no? Thanks.
If you are long a call and the call is in the money, unless you specify not to exercise it or sold it, the call would be automatically exercised for you due to the rule by Option Council and you will get the stock. It won't expire worthless if it's ITM.