The biggest loss of the option buyer is the premium, so it only needs to pay the premium, not the deposit, and the option seller needs to pay the deposit to ensure its performance ability.

The option trading of large-scale commercial housing implements the trading margin system. For a one-legged option contract, the standard for collecting the trading margin of the option seller is: the settlement price of the option contract × the trading unit of the underlying futures contract +MAX[ the trading margin of the underlying futures contract-half of the imaginary value of the option and half of the trading margin of the underlying futures contract]. ?

Extended data:

Precautions:

If you think that the market volatility is still on the high side and want to wait for the directional change of future ups and downs, you can temporarily use the spread combination to make the layout. The advantage of this is that the option price is generally expensive at present, and the combination of spreads can reduce the cost of royalties on the one hand.

On the other hand, reduce the impact of implied volatility changes on earnings. When the expected big market appears, add options. The spread is divided into bull market bullish spread. For example, the market once again touched the test support of 3 180, which can be regarded as a bottom-up layout, buying shallow subscription contracts and selling real or flat put contracts at the same time.

Baidu encyclopedia-option trading

Baidu Encyclopedia-Option Margin