Important
These tools are educational aids, not a basis for trading decisions. Independently verify values before using them in financial decisions.
Form calculators · Options
Options Analysis
Two focused Black–Scholes tools: a compact price-and-Greeks form and a detailed strike-spread workbook.
Quick estimate
Simple Black–Scholes.
Enter strike, spot, time, volatility, and interest to calculate call and put premiums together with the principal Greeks.
Strike-spread workbook
Detailed options analysis.
Compare calls and puts across a strike spread, inspect sensitivities, and model covered positions with the original STENDEC worksheet.
Classic keypad
Use the Black–Scholes RPN flavor for the same option workflow on a classic financial-calculator surface.
Open Black-Scholes RPN