Michael, the answer is Yes...I consider carrying cost in that when I calculate my return on investment on my covered calls I "annualize" the profit percentage.
Donahuedc, I do have a simulator program. With my covered call writes on low priced stocks, I'm happy with the 8 to 12% monthly I've been generating. I don't know that much about Put Call parity. Every so often, for wha tever reason, I see maybe a 20 or 30 cent difference in the extrinsic values of ATM Puts and Calls of the same strike price. Perhaps I'm wrong, but I attribute it to Implied Volatility, which according to what I have read over the years, is attributable to demand. I have a full time accounting practice I am comfortable with this strategy because I don't need to concern myself with assignment. If anyone wants my stock for the contracted strike price, I'm happy to deliver.
I'm all about Implied Volatility and Fundamental Analysis of the underlying stock. My fundamental analysis always starts with the Balance Sheet, particularly the current assets to current liabilities. If I don't like what I see there, I have no interest in going any further and I look to another issuer for a possible trade.
Thanks to everyone for taking the time to respond.