Writing an option when the writer owns the underlying security, and writes the option on a one to one ratio with the stock. A short call is covered if the underlying security is owned. A short put is covered if the underlying security is also short in the account. A short call is covered if a long call of the same underlying security is owned in the same account with the same or lower strike. A short put is covered if a long put of the same underlying security is owned in the same account with a strike price equal to or greater than the strike of the short put.