I have a portfolio with some stocks, 2 short put options (cash secured) and 1 short covered call. I would like to estimate beta for the portfolio. Should I ignore options? Should I take them into account with some probabilities? If so, how to calculate relative weight of each underlying stock - should I use strike or current price for this calculation? What to take as 100% - the current value of the portfolio or deduct the options value and add the newly calculated "what if" underlying stock value? Many thanks...