Your better model is a better predictor of fwd-vol. So your model is over BSM and you're expecting more stat-vol in spot and it comes in lower and you miss your hedges in shares/futures. We're not talking handles here (in edge), we're talking pennies. I know a guy who was pinned on long straddles in CL, missed his hedges and was pinned at the close on LTD. He was off by two handles in vol and lost seven figures. Let us know what you use when you're running CIG's MMing group. You don't know what you're talking about.
not for me i guess, not bragging, actually tough realization, but better to know it and wrangle it than deny it
We were sitting at PJ Clarke's with a guy from SIG and I asked Mike (Dutch MMing group) about his theta and his response was -$115K. The guy from SIG was LOLling so hard that Mike nearly lost his shit. Traders are assholes. He was a week out from LTD. CL expressed like a 7-handle in stat vol the following week. It was surreal. It was moving like EURUSD vol-line. Models are generic in vanilla. It really doesn't matter what you run. You're not running a diverse book counterparty to flow (buying the bid, shorting the offer) while owning exchange seats.
You are lucky dest is on hiatus, because he would blow that shit right out of the water and give you a proper flogging for that word salad. "really only the greeks do matter, cause those estimate relative price..." I don't even trade options and know that the above is a stupid statement. You new to this craft?