Gamma scalping is a dynamic trading technique employed by option traders to potentially profit from an option's gamma. The core idea is to maintain a delta-neutral position, meaning the overall portfolio's delta is close to zero, effectively neutralizing exposure to small price movements of the underlying asset. As the underlying asset's price moves, the delta of the options position will change due to the presence of gamma. Gamma measures the rate at which delta changes with respect to a change in the underlying price. Since options with positive gamma benefit from price movement, the trader will typically rebalance their position by buying or selling the underlying asset to bring their delta back to neutral. This repeated buying and selling of the underlying asset is where the 'scalping' aspect comes into play, as the trader aims to lock in small gains from these adjustments.
Consider an options trader who holds a long straddle (long call and long put at the same strike) on XYZ stock, which has a positive gamma. If XYZ stock is trading at $100 and the straddle has a neutral delta of 0, meaning it is not immediately sensitive to small price changes. If XYZ stock then rises to $101, the delta of the long call might increase to 0.55 and the delta of the long put might decrease to -0.45, resulting in an overall portfolio delta of +0.10. To 'scalp' this movement and bring the delta back to neutral, the trader might sell 10 shares of XYZ stock. Conversely, if XYZ stock drops to $99, the portfolio delta might become negative, prompting the trader to buy shares of XYZ. Each time the delta is rebalanced, the trader aims to capture a small profit from the price difference of the underlying bought or sold. This ongoing process of re-hedging and capitalizing on price swings is fundamental to the gamma scalping strategy, allowing a trader to potentially profit from volatility, even if the underlying asset eventually returns to its original price. The frequency and precision of these adjustments are key to the strategy's potential.
The main goal of gamma scalping is to capitalize on price fluctuations of the underlying asset by continuously rebalancing a delta-neutral options position, aiming to profit from the volatility.
Gamma scalping is a form of dynamic delta hedging where a trader frequently adjusts the underlying asset quantity to maintain a neutral delta, profiting from the delta changes caused by gamma.
Gamma is crucial because it measures how quickly an option's delta changes. Positive gamma means a position benefits from underlying price movements, allowing the trader to buy low and sell high when rebalancing.
Gamma scalping is typically considered a short-term, active trading strategy. It involves frequent adjustments within a relatively brief timeframe to capture small, recurring profits from price movements.
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