Gamma Scalping Mechanics
Gamma scalping is a sophisticated trading strategy used to profit from the difference between realized and implied volatility. It involves maintaining a delta-neutral position by buying or selling the underlying asset as the price moves.
Because the delta of an option changes as the underlying price moves, a trader must constantly adjust their position to remain neutral. When the market moves, the trader buys low and sells high, effectively capturing the gamma of the options.
This strategy relies on the fact that realized volatility is often higher than what was priced into the option premiums. It requires precise execution and a strong understanding of how to manage position sizing in relation to market microstructure.
If the market remains flat, the trader loses money through the decay of the option premium. It is a high-frequency, labor-intensive approach that demands excellent infrastructure for automated order flow management.
Success depends on the ability to capture volatility efficiently without incurring excessive transaction costs.