Option values in th Black-Scholes analysis depend upon five variables:

• S = Current Stock Price
• X = Exercise Price
• r = Risk-free Interest Rate (per year)
• T = Time Until Expiration (years)
• σ = Volatility (per year)

THW's
Computer for Black-Scholes
Call and Put Option Values

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       S =    
      X =    
       r =    
      T =    
      σ =    

    

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