Abstract

The =LAMBDA function within Excel provides a powerful new tool for investors and analysts. In this treatment, we demonstrate =LAMBDA functions that calculate an option’s intrinsic value, price, and Greeks based on the Black-Scholes model. We additionally construct an =ALLGREEKS function within Excel’s built-in =MAKEARRAY function that quickly produces option prices and Greeks given six parameters: the underlying spot price (S), strike price (X), annual return volatility (V), days to maturity (DTM), days in a year (DIY), and the annual risk-free rate (RF). In addition to writing this guide on how to create these useful functions, we provide a downloadable file.

KEY TAKEAWAYS:

  • We create Excel =LAMBDA functions for Black-Scholes call and put pricing with associated Greeks with and without a cost of carry.
  • Incorporating the =MAKEARRAY function allows for a single Excel function (=ALLGREEKS or =ALLGREEKSQ) to produce option prices and Greeks based on six parameters (seven parameters when including a cost of carry (Q)).
  • The Excel file is downloadable. Simply copying the function from the downloaded spreadsheet to a new spreadsheet makes the function and all associated nested functions available in the new spreadsheet.

Document Type

Working Paper

Publication Date

10-23-2024

Click below to download supplemental content.

Copy of OPTION-LAMBDA6-PAPER.xlsx (17 kB)

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