In gold trading, people have two prices, a buying price and a selling price. Spread refers to the fixed difference between the buying price and the selling price, that is, buying price-selling price = spread. Spread is the transaction cost of investors. At the moment of opening the warehouse, the system will charge the spread fee.

The specific calculation method of spread cost is: standard spread × contract unit × lots = spread cost.

In the trading market, the standard spread of gold is 0.5 USD/ounce, and the first-hand gold represents 100 ounce in the trading process, so the spread cost of trading 1 hand gold is 50 USD. The standard spread of London silver is $0.04 per ounce, and the spread fee for trading 1 lot London silver is $200. In this way, traders can clearly understand the spread cost of gold trading.