ExIRExIR 16711 bronze badge $endgroup$ one $begingroup$ Thanks for assisting, but does that signify theta pnl only partly offsets Gamma pnl and never entirely even though implied vol = realized vol? Since assuming curiosity rates are zero, there is no other supply of earning cash. $endgroup$ Meanwhile it is the https://www.youtube.com/watch?v=qMmsQ4kKgY4