Component 
Resolution  Vanilla Options 




Function Definition 
oBIN_IS(CallPut, ExerciseStyle, OptionValue, ValueDate, MaturityDate, Exercise, Volatility, RiskFree, NetCarry, Steps) Uses the NewtonRaphson iteration procedure to calculate the implied spot price that equates the given market price of the option with the BOPM price of the option. Returns the implied spot only. 




Option Types 
Suitable for American options on Stocks, Stock Indices, Currencies and Futures. 




Function Parameters 



Parameters 
Description 

Parameter Type 

Restrictions 

. 

CallPut 

Option type. 

Enumerated Constant 

1  Call 

ExerciseStyle 

Exercise type of the option. 

Enumerated Constant 

1  European 

OptionValue 

Current market price of the option. 

Double 

Option Value > 0 

ValueDate 

Valuation date of the option. 

Date 

ValDate < MatDate 

MaturityDate 

Maturity date of the option. 

Date 

MatDate > ValDate 

Exercise 

Exercise price of the option. 

Double 

Exercise > 0 

Volatility 

Annualized volatility of the underlying asset, expressed as a decimal. 

Double 

Volatility > 0% 

RiskFree 

Risk free interest rate, entered as either a single rate (act/365) or as a user defined zero curve object. 

Double or Curve 

RiskFree >= 0% 

NetCarry 

The net cost of carry, entered as either a single rate or as a user defined rate curve object. See net cost of carry definitions for different option types. 

Double or Curve 



Steps 

The number of steps in the binomial tree. Although there is no upper limit, the speed of calculation will deteriorate for high step numbers. 

Long 

Steps >= 2 
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