I have 500 DNDN that I picked between $5 and $7. I'll like to take some money (on 200 shares) around $20. A buddy of mine told me to write Jan 11 $20 calls for 200 shares which is trading around $7. My question is if I am short calls and get called away I can still keep all the premium can't I? If I do get called my net position will be long 300 shares only....is it correct? Thanks.