Q Quiet1 Mar 5, 2018 #11 for a +1 point move your contract value changes by -0.388 x 50 given the current underlying future price and the option's implied volatility and time to expiry etc.
for a +1 point move your contract value changes by -0.388 x 50 given the current underlying future price and the option's implied volatility and time to expiry etc.
