Red Lines are potential levels for weekly expiry.
Green Lines are potential levels for Monthly expiry.
Both levels are calculated plotted on the day of expiry for the next expiry.
Here green lines were calculated and plotted on 27-05-2021. And short strangle positions taken for 24-06-2021 Expiry at market close on 27-05-2021
NIFTY 24JUN2021 15900CE Sold at...