Voir iotafinance en FrançaisYou are viewing the English version of iotafinance.comIotafinance auf Deutsch sehen
Icon for the finance formula section

Valuation of a European call option (Black & Scholes model) formula

icon of the financial acronyms app for iOS

Financial acronyms

The entire acronym collection of this site is now also available offline with this new app for iPhone and iPad.

 Description of the Valuation of a European call option (Black & Scholes model) formula

Formula for the evaluation of a European call option on an underlying which does not pay dividends before the expiry of the option, using the Black & Scholes model

  Formula

\[ c(s,t) = SN(d1) - Ke^{-rt}N(d2) \] \[ {\small where: d1 = \frac{ln \left( \frac{S}{K} \right ) + \left(r+\frac{\sigma^{2}}{2}\right)t}{\sigma\sqrt{t}} ;} \] \[ {\small d2 = d1 - \sigma \sqrt{t} } \ \]

 Symbols

\(K\ \)       
Option strike price
\(N\ \)       
Standard normal cumulative distribution function
\(r\ \)       
\(σ\ \)       
\(S\ \)       
Price of the underlying
\(t\ \)       
Time to option's expiry