Black-Scholes Greeks LabV(S, K, T, σ, r, q)

Drag any input. Every curve, surface and number recomputes from the closed-form BSM formulas.

Delta vs Spot

Dot = current inputs. Hover for values.

Preset

Leg	Type	Qty (+ long, − short)	Strike K	Expiry (days)	Unit price	Position value

Show each leg on the curve S, σ, r, q apply to every leg. The T slider is the front leg's time to expiry; later legs keep their gap in days.

Greek	Call	Put	Unit

Click a row to plot it. Theta, charm, veta and color are calendar-time decay (∂/∂t = −∂/∂T).