Option P&L Attribution Calculator
Decompose a day's option P&L into delta, gamma, theta and vega contributions — find out what actually made the money.
Formula
Daily attribution separates skill from luck: directional traders should see delta dominate; vol traders, gamma-plus-theta netting positive. A fat unexplained residual flags higher-order effects (vanna, volga) or bad marks — investigate, don't ignore.
Not financial advice — for informational and analytical use only. Verify all figures with a qualified professional before acting on them.
Need option p&l attribution calculator results fast? Analysts, founders, traders and finance professionals use the Option P&L Attribution Calculator to skip the spreadsheet and get a defensible answer in one step — free, private and instant.
About Option P&L Attribution Calculator
Decompose a day's option P&L into delta, gamma, theta and vega contributions — find out what actually made the money. Daily attribution separates skill from luck: directional traders should see delta dominate; vol traders, gamma-plus-theta netting positive. A fat unexplained residual flags higher-order effects (vanna, volga) or bad marks — investigate, don't ignore. The governing relationship is ΔV ≈ Δ·dS + ½Γ·dS² + Θ·dt + ν·dσ. The Option P&L Attribution Calculator computes entirely in your browser — free, private (your figures never leave your device) and instant, recalculating live as you change any input.
How to use Option P&L Attribution Calculator
- 1Enter Delta (start of day), Gamma, Theta (per day), Vega (per vol pt), Spot change, IV change (vol pts) into the Option P&L Attribution Calculator.
- 2The result is computed automatically using ΔV ≈ Δ·dS + ½Γ·dS² + Θ·dt + ν·dσ — there is no button to press.
- 3Change any input to model a different scenario, then copy or share the result.
Why use Option P&L Attribution Calculator?
- ✓Computes option p&l attribution calculator instantly with the correct formula — no spreadsheet needed
- ✓100% free and unlimited, with no sign-up, login or paywall
- ✓Runs entirely in your browser, so the figures you enter stay private
- ✓Shows the formula, a live worked example and references so you can defend the number
Frequently asked questions
What is the formula behind the Option P&L Attribution Calculator?+
Option P&L Attribution Calculator uses ΔV ≈ Δ·dS + ½Γ·dS² + Θ·dt + ν·dσ. Daily attribution separates skill from luck: directional traders should see delta dominate; vol traders, gamma-plus-theta netting positive. The tool substitutes your actual inputs into this relationship and shows the worked example step by step.
What inputs does the Option P&L Attribution Calculator need?+
Enter Delta (start of day), Gamma, Theta (per day), Vega (per vol pt), Spot change, IV change (vol pts) and the result updates immediately — there is no button to press. Change any value to model a different scenario in real time.
Is the Option P&L Attribution Calculator free, and is my data private?+
Yes — it is completely free with no sign-up or usage limit, and it runs entirely in your browser, so the numbers you enter are never uploaded or stored on any server. It is for informational and analytical use, not financial advice.
What should I watch out for when using the Option P&L Attribution Calculator?+
A fat unexplained residual flags higher-order effects (vanna, volga) or bad marks — investigate, don't ignore.
What is the Option P&L Attribution Calculator based on?+
The method follows authoritative sources: Bergomi — P&L explain; desk risk practice. The formula and references are shown on the page so you can verify and cite the result.
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