ExIRExIR 16711 bronze badge $endgroup$ one $begingroup$ Many thanks for aiding, but does that suggest theta pnl only partially offsets Gamma pnl and not fully although implied vol = understood vol? Due to the fact assuming curiosity prices are zero, there's no other source of earning revenue. $endgroup$ The gives https://www.youtube.com/watch?v=qMmsQ4kKgY4