Does Accelerated Decay Affect ITM and OTM Options Equally?
Accelerated decay affects the time value component of both ITM and OTM options. However, since OTM options are entirely time value, the decay represents a larger percentage loss of their total premium.
ITM options have a stable intrinsic value, which dampens the percentage effect of the decay.
Glossar
Accelerated Decay
Mechanism ⎊ This phenomenon describes the non-linear erosion of an option's time value, or Theta, which intensifies as the derivative approaches its expiration date.
Time Value
Component ⎊ Time value, also known as extrinsic value, is a component of an option's premium that reflects the probability of the underlying asset's price moving favorably before the option expires.