Based on your financial expertise, provide your response or viewpoint on the given financial question or topic. The response format is open.

What do these options trading terms mean?
Can anyone explain what each of them mean and how they're different from each other? When you "buy to open", you are purchasing an option and opening a new position. When you "sell to open", you are creating a brand new options contract and selling it. "Covered" means that you have assets in your account to satisfy the terms of the options contract. A "covered call" is a call option for which you own shares of the underlying stock that you will sell to the buyer at the option's strike price if he exercises the option. If you previously made a "sell to open" trade to create a new position, and you want to close the position, you can buy back the option. If you previously made a "buy to open" trade, you can "sell to close" which will sell back your option and close your position. In summary: