Update Transaction - MEMC Electronic Materials (WFR)

I am preparing for a long wait, and so I sold an April $16 call. The profit/loss info is below:

10/21/2009 -- Bought 100 WFR @ 15.76
10/21/2009 -- Sold To Open 1 WFR November $16 Call @ 0.81
10/23/2009 -- Bought To Close 1 WFR November $16 Call @ 0.25
10/23/2009 -- Sold To Open 1 WFR November $15 Call @ 0.40
10/27/2009 -- Bought To Close 1 WFR November $15 Call @ 0.20
12/2/2009 -- Sold To Open 1 WFR April $16 Call @ 0.55

The important purchase metrics are below for insight into possible profit and loss (these all include commissions):
Cost Basis: 1495.00
Current Cost Average: $14.45

Potential Gain If Called At Expiration: 10.03%

Potential Annualized Gain If Called At Expiration: 20.57%