Strange to see the instrument : but cannot buy it as zerodha has blocked such far trades .. but the qty keeps changing in seconds @ 60.80 View attachment 34952
In these situations I use the 50-50 approach, good for emotional psychology... if stock goes up from that point I will be happy I did not sell half and if it goes down I will be happy that I sold half..
In the option calculator you need to tinker with the IV and keeping other values constant till you get the price of the option to the current market price. if you notice that the IV which you have entered is higher than the historical value then the option is inflated. There is a risk of volatility crush. You derive the Iv indirectly that's why it is called "implied volatility."