The so-called Delta is used to measure the percentage of option price change when the underlying assets of the option change, that is, when the underlying value of the option changes, the option value also changes.

The formula is: Delta= change of foreign exchange option fee/change of spot exchange rate of foreign exchange option target.

Regarding the Delta value, you can refer to the following three formulas:

1. option Delta weighted part = market value of the underlying asset of the option × option Delta value;

2. Delta weighted position of option × market risk coefficient of each target =Delta risk equivalent;

3.Delta weighted position value = option delta weighted position value+spot hedging position value.