@Raghunath_TL I might be asking a very novice Ques, it would be great if you could help me understand it. I am calculating the theor value of an option using the BS model and I find that the IV is different at different places - Opstra 10800CE - 15.77 NSE - 13.93 Upstox - 17.74 https://t.co/Wabcj94xnw