Options Strategy Builder with Payoff

You add legs one at a time, picking type (call/put/stock), strike, expiry and direction (bought/sold). The builder instantly computes the combined payoff by summing each leg's profit at every price, and charts it at expiry and at the current moment.

On the same legs it computes aggregate Greeks — delta, gamma, theta, vega — and the breakevens. Delta tells you how the position moves with the underlying, theta how much it bleeds each day, vega how much it gains/loses if volatility changes: the full risk picture before you trade.

For ES and NQ futures the builder uses the correct multiplier and point value, so the payoff and Greeks reflect the real contract value, not an equity approximation. Saved strategies land in the portfolio manager, where you can track them over time.

Many payoff calculators stop at the at-expiry chart with a fixed equity multiplier (100). Gaudio OTT gives payoff at expiry and at the current moment, aggregate Greeks and breakeven together, and correctly handles ES and NQ futures with their real multiplier and point value.

On top of that, the strategy doesn't die after the simulation: it saves into the portfolio manager and is tracked over time. It's built for those who don't just want to draw a payoff, but to build, execute and manage strategies without jumping between three different tools.