Build a strategy: pick a preset from the strategy menu, or click + Add Leg to choose strikes manually.

Matrix: rows = simulated future spot price; columns = time slices from now to expiry. Cells show P/L (or value/% per the bottom toggle), heatmap-colored.

Sliders:

• Range: price band shown on Y-axis (around spot)
• IV adj: shift implied vol for what-if analysis
• Time: fast-forward time (0 = now, 100 = at expiry)

Save & share: Save Trade → localStorage. Copy Shareable Link → URL hash.

Greeks: position-aggregated, shown in the right panel.