CALL

To calculate call option prices.

In general, the format is:

  CALL vars / options


The available options are:

Option Description
AMERICAN Specifies that the stock option is American.
BLACK Use the Black-Scholes option pricing model.
EQUAL Use the equal jump model.
IMPVOL Compute the implied volatility from the Black-Scholes model. The call or put option price must be specified with OPTIONP=.
BARRIER= The barrier level for the asset price used in pricing an American down-and-out call option.
DIVIDEND= Continuous dividend yield of the asset.
NUMTIME= Specifies the number of time steps in the binomial tree to use for binomial option calculations.
OPTIONP= Specifies the variable containing the option prices. This is required for the IMPVOL option.
PREDICTP= Stores the predicted option prices in the variable specified.
PREDICTV= Stores the calculated implied volatilities in the variable specified.
RISKFREE= Specifies the risk-free interest rate. If the interest rate is 5% enter RISKFREE=5.
SIGMA= Specifies the standard deviation.
STRIKEPRICE= Specifies the stock option strike price.
TIME= Specifies the number of time periods until the stock option expires.
UP=/DOWN= Size of proportional upward and downward move.

In addition, the BEG=, END= options can be used.