There is very little profit in selling puts. plus you have to have cash in the account locked up at #shares x strike price. Why would I want to lock up my cash for small returns on premium if the stock goes up. If the stock goes down you get exorcised and you have to buy the shares at a higher price then market price at exorcise time and hence loose money. Only fools enter trades like that. Sheeeeeeeeeeezzzzz.