A bleed that measures the effect of time on an option contract (or an options portfolio) as it becomes closer...

A bleed that measures the effect of time on an option contract (or an options portfolio) as it goes farther...

A risk measure for options which is computed by relating an option's modified theta to its gamma: Modified alpha =...

A risk measure for options which is computed by relating an option's theta to its gamma: Alpha = decay/ gamma...

The difference between the values of two options, that is made when the value of the one sold exceeds the value...

The amount of the change in an option price with respect to the decrease in time to expiration. The option value declines or decays...

The amount of the change in an option price with respect to the decrease in time to expiration. The option value declines with the passage...

A change in the sensitivity of an option (or generally a derivative) with the passage of time, holding everything else constant (e.g., volatility)....