Try this: if you have what seems to be a profitable swing trading stock system. For example, your system sez to buy MSFT at the open and sell at certain pcnt profit, or hi RSI, bands, fibs, whatever. If your sys said you had a profit of 1-2% on a certain MSFT trade of for example 3 days, that translates to about 20-25% gain of the near month, near the money call at current IV levels (~27%). If it was a 3% loser after 5 days, that is about a 70% loss on the call. Using an option risk grapher and historical last trade op data, even what's available for free from broker like IB, you can "convert" a stock system to trade long ops. Maybe not extremely accurate, but you should log all trades in a spreadsheet and examine them closely anyway to see how well things are tracking.
)