At the Money Option Risk
At the Money (ATM) Option Risk refers to the unique challenges associated with options where the strike price is equal to the current market price of the underlying asset. These options have the highest gamma and are the most sensitive to small price changes, making them the most difficult to hedge.
Because their delta is close to 0.5, they are also highly responsive to volatility changes. For market makers, ATM options represent a significant risk because they require the most frequent hedging.
Traders often prefer to avoid excessive ATM exposure unless they have robust systems to manage the associated gamma. Managing this risk involves careful position sizing, hedging with other instruments, and ensuring that the premium collected justifies the high level of volatility and management effort required.