Binary Option Time Decay

Mechanism

Binary option time decay represents the predictable erosion of a derivative contract’s extrinsic value as it approaches its expiration date. Unlike traditional vanilla options that maintain a sliding scale of probability, these fixed-return instruments experience an accelerated loss of temporal premium precisely as the remaining duration nears zero. Market participants must account for this phenomenon, commonly referred to as theta, which dictates that the probability of the contract reaching its predefined strike price diminishes as time constraints tighten.