The withdrawal of funds is not within the opening time, and the withdrawal and deposit of funds must be within the opening time. Investors can voluntarily decide to buy or sell futures contracts based on market conditions and personal wishes.

If an investor (long or short) does not perform a reverse operation (sell or buy) with equal delivery month and quantity, and holds a futures contract, it is called a "position". In commodity futures operations such as gold, whether buying or selling, any new position is called opening a position. After the operator opens a position, he holds the position in his hand, which is called a position.

Extended information:

1. Increased trading volume and holdings, and rising prices, indicate that prices may continue to rise.

2. Large trading volume, small positions, and rising prices indicate that prices are rising in the short term and will fall soon.

3. The trading volume increases, the position decreases, and the price rises, indicating that the price is about to fall.