Quick Start

1. Search a ticker at the top (e.g., AAPL, SPY)
2. Click an expiration tab to load the options chain
3. Click any row in the chain to add it as a leg
4. Or pick a preset strategy from the sidebar

Keyboard Shortcuts

C Calculate P&L  ·  S Save strategy  ·  X Clear legs
D Toggle dark mode  ·  T or / Focus ticker search
? Show this help  ·  Esc Close dialogs

Key Metrics Explained

POP (Probability of Profit) — % chance the trade makes money at expiration
1σ Range — 68% probability stock stays in this range
2σ Range — 95% probability stock stays in this range
Max Profit/Loss — Within 2σ range (realistic outcomes)
ROI % — Max profit as a percentage of margin required
Risk/Reward — Max profit divided by max loss

Greeks

Delta — Option price change per $1 stock move
Gamma — Rate of change of delta
Theta — Daily time decay (loss per day)
Vega — Sensitivity to IV changes (per 1% IV)

Chart Lines

Solid — P&L at expiration
Dashed — P&L at T+half (midway)
Dotted — P&L today (T+0)