Available Calculators
ROI Calculator
Calculate and compare return on investment across multiple options positions. Track tickers, premiums received, and holding durations side-by-side.
Open tool →Breakeven Calculator
Find the exact price the underlying stock needs to reach for your trade to break even, accounting for premiums paid or received on calls and puts.
Open tool →Sharpe Ratio
Measure risk-adjusted performance by comparing portfolio returns to their volatility. Assess whether your strategy's returns justify the total risk taken.
Open tool →Sortino Ratio
Like the Sharpe Ratio, but only penalizes downside volatility — a more precise metric for options strategies with asymmetric payoff profiles.
Open tool →Greeks Calculator
Calculate Delta, Gamma, Theta, Vega, and Rho for any options contract using the Black-Scholes model. Enter the underlying, strike, expiry, IV, and rate.
Open tool →Daily Theta Calculator
Calculate your ideal daily portfolio Theta target based on account size, risk profile, and buying power allocation. Model realistic time decay capture.
Open tool →IV Calculator
Back-solve for implied volatility from an option's market price. Input the observed price and contract details to calculate the market's implied IV instantly.
Open tool →Max Pain Calculator
Calculate the max pain price — the strike at which the most options expire worthless, causing maximum loss to buyers. Useful for anticipating price pinning near expiry.
Open tool →Margin Calculator
Estimate initial and maintenance margin requirements for selling options contracts. Understand your buying power consumption before entering a position.
Open tool →After-Tax Return Planner
Calculate the required pre-tax gross profits to achieve your take-home income targets across all 50 US states. Compare Equity Options vs. Section 1256 Index Options (SPX).
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