What does KD mean?

KD in finance typically refers to "kappa" (κ), which is a measure of the sensitivity of an option's price to changes in the price of the underlying asset. It is a key parameter in the Black-Scholes option pricing model and is used to assess the risk associated with options trading. The KD value helps traders and investors understand the potential impact of changes in the underlying asset's price on the value of their options. It is an important concept in financial derivatives and is used to manage risk and make informed investment decisions.