ExIRExIR 16711 bronze badge $endgroup$ 1 $begingroup$ Many thanks for helping, but does that imply theta pnl only partly offsets Gamma pnl instead of absolutely even though implied vol = recognized vol? For the reason that assuming interest prices are zero, there isn't any other source of producing revenue. $endgroup$ https://www.youtube.com/watch?v=qMmsQ4kKgY4