3.8 Notation o: spot price today Fo: Futures or forward price today T. Time until delivery date r. Risk-free interest rate for maturity T Options Futures, and other Derivatives, 5th edition C 2002 by John C. HullOptions, Futures, and Other Derivatives, 5th edition © 2002 by John C. Hull 3.8 Notation S0 : Spot price today F0 : Futures or forward price today T: Time until delivery date r: Risk-free interest rate for maturity T