Options Greek Parameters Flashcards
Define Delta
Delta is a measure of the sensitivity of an option’s price to changes in the price of the underlying asset. It represents the rate of change in the option’s price with respect to changes in the underlying asset’s price.
Define Vega
Vega is the rate of change of the value of a derivativesportfolio with respect to volatility
Define Theta
Theta of a derivative (or portfolio of derivatives) is the rate of change of the derivative’s value with respect to the passage of time
Define Gamma
Gamma is the rate of change of delta with respect to the priceof the underlying asset
If Gamma is small then Delta changes ……. and infrequentadjustments have to be made to maintain delta neutralit
slowly
Gamma neutrality provides protection against ….. movements (‘jump risk’) in the asset price between rebalancing
large
Gamma is greatest for options that are ………….
near-the-money
Delta neutrality can be reestablished by transacting on the ………….. ………
underlying asset
‘Delta’ can be interpreted as the:
*Hedge ratio
*Probability that option will expire in the money
*Equivalent position in the underlying
The theta of a call or put is usually
negative
The theta of a call or put being negative (usually) means that, as time passes, ceteris paribus (i.e. with theprice of the underlying asset and its volatility remaining the same), the value of a call or put option …….
declines
Theta can be positive when ……
a European put option is deep in-the-money
Passage of time affects option value through its effects on Volatility as…..
there is less time for it to have an impact, it is negativefor both calls and puts