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Below you will find a complete set of details for 2 different references / citations that are related to the computation of put option prices (Black-Scholes formula).

Reference for Citing the Online Calculator

- Soper, D.S. (2021). Black-Scholes Calculator for the Price of a Put Option [Software]. Available from https://www.danielsoper.com/fincalc

Reference from the Scientific Literature

- Black, F. and Scholes, M. (1973). "The Pricing of Options and Corporate Liabilities", Journal of Political Economy, 81(3), pp. 637-654.

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