Charm Decay

Calculation

Charm decay, within cryptocurrency options and derivatives, represents the time-dependent erosion of an option’s extrinsic value, stemming from the diminishing probability of the underlying asset reaching a profitable price before expiration. This phenomenon is particularly pronounced in shorter-dated contracts, where the impact of each passing day is proportionally greater, and is modeled using the Greeks, notably Theta, which quantifies this rate of decay. Accurate calculation of charm decay is crucial for volatility traders and market makers to appropriately price options and manage associated risks, especially in the rapidly evolving crypto markets.