Margin

Index Futures and Options

Margin for short index options：Option premium + Maximum (Margin "A"–(Out-of-the-money value), Margin "B")
A=a fixed amount as announced by TAIFEX
B= a fixed amount as announced by TAIFEX (ie. the minimum margin level)

Single Stock Futures and Equity Options

Margin for Short Calls =
Option premium + Maximum [Underlying price * Mutiplier * Margin "A"–Out-of-the-money Value, Underlying price * Mutiplier * Margin"B"],

Margin for Short Puts =
Option premium + Maximum [Underlying price * Mutiplier * Margin "A"–Out-of-the-money Value, Srtike price * Mutiplier * Margin"B"]