OC = Ps[N(d 1 )] - S[N(d 2 )]e-rt
OC- Call Option Price
Ps - Stock Price
N(d 1 ) - Cumulative normal density function of (d 1 )
S - Strike or Exercise price
N(d 2 ) - Cumulative normal density function of (d 2 )
r - discount rate (90 day comm paper rate or risk free rate)
t - time to maturity of option (as % of year)
v - volatility - annualized standard deviation of daily returns
Black-Scholes Option Pricing ModelBlack-Scholes Option Pricing Model