Free Financial Tools

Calculate theoretical option prices and Greeks (Delta, Gamma, Theta, Vega, Rho) using the Black-Scholes model.

Interactive payoff charts for calls, puts, spreads, straddles, strangles, and multi-leg strategies.

Calculate implied volatility from market prices. See Greeks at calculated IV with sensitivity analysis.

Calculate profit/loss, ROI, and capital gains tax. Supports multiple positions and short selling.

Calculate average cost across multiple purchases. Perfect for averaging down strategies.

Calculate position size using % risk, fixed $, Kelly Criterion, or ATR volatility methods.

Calculate compound annual growth rate to measure investment performance over time.

Project future investment value using expected CAGR. Compare multiple scenarios.

Calculate dividend income, yield, and DRIP growth. Includes SCHD, VOO, JEPI presets.

Estimate taxes on dividends for all 50 US states with qualified vs ordinary breakdown.

Calculate intrinsic stock value using Dividend Discount Model with sensitivity analysis.

Calculate compound growth with regular contributions, inflation adjustment, and tax impact.

Compare DCA vs lump sum investing with volatility scenario simulation.