Options P&L and Greeks Workbook
Black-Scholes price, five Greeks, four-leg strategy payoff at expiry, verified
Black-Scholes price and five Greeks for a call and a put, a four-leg strategy priced leg by leg, and the payoff at expiry across a price grid, all verified.
One price, no licence to choose. Payment and VAT are handled by Gumroad, the merchant of record.
Pricer: underlying, strike, time, continuous rate and dividend yield, volatility. Out come the call and the put price, delta, gamma, vega per volatility point, theta per day and rho per rate point, with the put-call parity line showing the two prices agree. Strategy: up to four legs on the same underlying and expiry, each priced by the model at its own strike and by the fill you enter; net premium, the model value of the position, position delta in units. Then forty-one prices at expiry: each leg's payoff, the total, P&L after premium, max profit and max loss on the grid.
- Prices, every Greek, the parity check, every leg and the grid recalculated with a formula engine and matched to an independent Python replica before listing.
- Live formulas, no macros, no locked cells; opens in Excel and Google Sheets.
- European exercise, constant volatility, no costs: a model, not a market. The Guide says what that leaves out. No signals, no forecasts, not investment advice.
Checked, not asserted. This workbook was recalculated cell by cell through a formula engine and matched against an independent replica written separately: 58 checks, all passing, last run 2026-10-17. Each check compares the figure the workbook produces against one worked out separately by hand before the run, so a figure lost in packaging fails the check rather than reaching you. Read the verification report for the UAE Corporate Tax workbook, or how Bindler verifies.
What was checked: all 20, by name
Each line is one figure recalculated and matched against a value worked out by hand before the run. The figures themselves are in the workbook.
- call price vs
- put price vs
- call delta vs
- put delta vs
- call gamma vs
- put gamma vs
- call vega vs
- put vega vs
- call theta vs
- put theta vs
- call rho vs
- put rho vs
- parity vs
- net premium vs
- model value vs
- position delta vs
- grid P&L at 70 vs
- grid P&L at vs
- max profit vs
- max loss vs
What is inside
1 Excel workbook (.xlsx), sheets: Pricer, Strategy (legs and the expiry grid), Guide.
Use it if
You trade or study options and want the model arithmetic shown and checked, not a black box.
Not for
You need American exercise, volatility surfaces or live data; this is Black-Scholes on your inputs.
Who you are buying from
Bindler is the trading name of Neil Sangwaiya, one person in Dubai. There is no company behind that name, no sales team and no reviews, and this page is not going to pretend otherwise. What there is instead is a record. Gumroad takes the payment and is the merchant of record, so your card details never reach Bindler. Where a figure could not be verified the cell is left blank rather than filled. When something was found wrong it was written down and dated in the change log with the old figure named. And there is a 30-day money back guarantee, no reason needed, handled by Gumroad.
What you actually download
One spreadsheet file. No macros and no VBA, because the .xlsx format cannot carry them. No locked cells and no hidden sheets. If your IT will not let you open a spreadsheet from outside, upload it to Google Sheets and it opens there. And yes, an AI built it: that is exactly why every figure is recalculated against a replica worked out by hand first, rather than trusted.
Sheet previews
How buying works
- Choose a licenceSingle user for one person, team for up to 10, consultancy to use with clients. The buttons above go to the Gumroad page.
- Pay on GumroadCard or PayPal; Gumroad is the merchant of record and handles VAT and the receipt.
- Download the fileThe .xlsx arrives on the receipt page and by email. It opens in Excel and Google Sheets; nothing to install.
- Use itYellow cells are inputs, blue cells are formulas, every figure names its source. Questions: reply to the receipt; every reply is read and answered, usually the same day.
Advisers and accountants who recommend these workbooks to clients can earn 30% of each sale as a Gumroad affiliate: sign up on the store, no approval wait.
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