Contract multiplier: 100 shares · Prices are Black-Scholes theoretical
How to read this:
Delta is $ exposure to the underlying (≈ shares).
Gamma is how fast delta changes.
Theta is daily time decay — negative means you lose value each day you hold.
Vega is P&L per 1% IV move.
Try the Bull Call Spread preset to see capped risk vs a naked long call.
Options Trading — 8 bite-size lessons
P&L Table
Profit / loss at expiry across a range of underlying prices.