Gamma scalping hedges an option position against the underlying stock to profit from movement in either direction. A 3D gamma field replays one real NVDA session through ten option expiries at once, every particle the hedging P&L ten seconds of real price movement produced for that expiry, with the rebalances that bank each scalp and the spot path on the rear wall. The lesson walks one scalp in shares, the squared rule that makes a six percent day pay thirty six times a one percent day, the theta breakeven at implied vol over the square root of 252, and the hedging identity that makes the whole strategy a purchase of realized variance at the implied price. A second panel tests the last ten real sessions against the breakeven move. References run from Black and Scholes through El Karoui, Jeanblanc and Shreve to Carr and Madan.
