Five modules share one pricing core.
Every module draws on the same vendored comp_methods library, so the price in the builder matches the price in the Greeks lab.
| Module | What it does |
|---|---|
| Strategy Builder | Up to 6 legs of calls, puts, and stock (buy or sell, European or American) with payoff and current-value overlays plus portfolio Greeks. |
| American Options | Five pricing models side by side with early-exercise premiums vs. Black–Scholes, runtimes, and convergence charts. |
| Greeks Lab | Two instruments on one chart: Δ, Γ, ν, Θ, ρ against spot, time, vol, and rates, with 20 charts plus N(d1)/N(d2) moneyness. |
| Implied Volatility | European (Brent root-find) and American (trinomial) IV with back-solve verification and a live-quote workflow. |
| Exotics | Asian, barrier, and lookback via seeded Monte Carlo with standard errors; digital options in closed form. |