Delta Hedging Spirals
A delta hedging spiral occurs when options market makers are forced to buy or sell the underlying asset to remain delta neutral as prices move, creating a feedback loop that exacerbates price trends. When a dealer sells a call option, they must buy the underlying asset to hedge.
If the price rises, the delta increases, requiring the dealer to buy even more of the asset to maintain their hedge. This buying pressure pushes the price higher, increasing the delta further and requiring more buying.
This is known as a gamma squeeze. Conversely, if the price drops, the dealer must sell, which pushes the price down further.
These spirals are significant in high-volume crypto options markets where liquidity can be shallow. They demonstrate how derivative hedging activities can dictate spot market price action.
The intensity of these spirals is governed by the gamma of the options portfolio.