I have 2 calls expiring today: The $12.50 on SLW and the $10 on DYN.
I bought Silver Wheaton SLW at around $10.60 and consider it more of a longer term holding. I can sell the $12.50 calls and earn a couple of percent a month while waiting for it to go up. I believe this company has excellent longer term prospects. They will be releasing quarterly earnings next Thursday.
A week ago I thought my Dynegy DYN position would be called away. I purchased the stock a few weeks ago at $9.72 and sold the Apr $10 call. The stock moved nicely to above $10 but has fallen back the last few days to $9.65 right now. Option premium on the $10 call is about 3% per month after commissions, so I would like to sell a couple before the stock is called away. They have an earnings release on May 8. I am a little nervous about this stock due to the recent pullback, time will tell.