ASC 718 Black-Scholes Stock Option Fair Value Modeler
Calculates European call option fair value for employee stock options under ASC 718.
Notice: engineering verification utility. Use test or de-identified data and verify results independently before relying on them.
How it works
Standard: ASC 718 Compensation-Stock Compensation
Formula: C = S * N(d1) - X * e^(-r*t) * N(d2) with volatility and dividend yield inputs
Checks: Positive stock price, strike price, volatility, and risk-free rate
Calculated locally in browser memory; nothing leaves your browser.
Deterministic local-first client-side execution. Provided as-is without warranty.