Use this financial calculation for a transparent scenario, ratio, valuation, pricing, or cash-flow estimate when all amounts, dates, rates, and compounding conventions are defined consistently.

Spot price

Required number input.

Strike price

Required number input.

Time to expiration (years)

Required number input.

Risk-free rate (%)

Required number input.

Dividend yield (%)

Required number input.

Annualized volatility (%)

Required number input.

Option type

Required string input.

Tree steps

Required integer input.

Early-exercise steps

Required list input.

Estimate a Bermudan call or put with a Cox-Ross-Rubinstein tree, allowing early exercise only at selected tree steps plus expiration; results depend on the exercise schedule and discretization. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Bermudan option price

The resulting bermudan option price returned as a number.

Allowed early-exercise dates

The resulting allowed early-exercise dates returned as an integer.

• Option values depend on contract terms and model assumptions for volatility, rates, dividends, exercise, barriers, monitoring, discretization, and underlying dynamics. Black–Scholes and small trees can misprice early exercise, jumps, smiles, path dependence, and illiquid contracts.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Test multiple scenarios, reconcile rates and cash-flow dates, retain full precision, and verify contractual, tax, market, and accounting inputs with current primary documents or qualified advice.

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