gamma

A position with high gamma becomes more sensitive to price moves as the option approaches expiry.高 Gamma 的头寸随着期权临近到期对价格变动变得更加敏感。

Gamma squeezes occur when dealers are forced to hedge gamma by buying the underlying, accelerating upward price moves.当做市商被迫通过买入标的资产来对冲 Gamma 时，就会发生 Gamma 挤压，从而加速向上的价格走势。