Building the weekly condor

At the 28 Oct 2026 close (bhavcopy) the Nifty 3 Nov parity forward was 22,707.41, the ATM IV 15.34% and six calendar days remained. (a) Compute one standard deviation of the forward to expiry, and the short strikes under rule 2 of 15.5.2. (b) The short 23,200 call and 22,250 put closed at 25.70 and 42.85. Compute the credit per lot. Next day the 23,400 call and 22,050 put were bought at 12.95 and 5.55. Compute the condor's net credit, its maximum loss per lot and its break-evens. (c) The index settled at 23,810.85. Compute the P&L per lot of the naked strangle held to expiry, before costs, and express it as a percentage of capital.