RE:RE:RE:RE:RE:700 callsIf you own the call you can exercise at anytime... and also decline on expiry (apparently with a broker call)...
I believe the main reason you would exersize your call early (rationally) is for dividend collections, it would likely have to be a significant one like a special .. or yes, maybe turning around and using your new holdings for selling call options... or a rights offering, or a significant vote like a M&A...