Design the exact structure you want.
Trade Builder is for going from thesis to trade in one click. Strategy Designer is for the other times — when you know exactly what you want to construct and want a leg-level editor with live pricing, probability of profit, margin, and a P&L heatmap that updates as you drag sliders.
Build any structure
- Templates — Long call, short put, vertical, iron condor, butterfly, calendar-at-spot, short straddle, or blank.
- Leg editor — Add/remove legs, pick strikes from live chains, flip long/short, set contract counts.
- Structure classifier — Auto-detects what you built (Iron Condor, Bull Put Spread, Ratio Spread, etc.) and validates against no-arb constraints.
- Probability of profit — Computed from current IV surface. Not a guess.
- Margin requirement — Reg-T style, so you know what your broker will hold.
What-if sliders
Three live sliders — spot, IV, days held — drive a P&L heatmap that updates in real time. See exactly where the trade breaks, where it makes its most money, and how sensitive it is to a vol crush.
Side-by-side comparison
Save any structure to a comparison drawer and see two or three candidates evaluated on max profit, max loss, breakeven, probability of profit, margin, and premium — same y-axis, same scenario grid.
Inline from Workbench
When a research report or Trade Builder recommendation includes a structure, "Edit in Designer" opens Strategy Designer pre-loaded with the legs. Tweak the strikes without re-doing the trade from scratch.
Start with the free tier. No card required.
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