Buying means that you will buy goods; Selling means that you will sell the goods.

If you want to invest in futures, you must first open an account with the clearing company of the exchange. The exchange will appoint your agent, and the agent will follow your instructions, but you can't enter the trading hall yourself.

Futures prices are determined by traders (in fact, traders' agents) bidding on the exchange.

Initial margin: the margin (generally a certain percentage) paid by both parties to futures trading to the clearing company to ensure the performance of the contract.

Maintenance margin: the minimum amount (in a certain proportion) that a trader must hold in order to maintain his own exchange.

Closing positions, also known as lightening positions and hedging.

In other words, if you do an operation on the same scale as your previous operation but in the opposite direction, you can terminate the contract, then you don't have to perform the contract.

For example, you first buy 1000 tons of Dalian soybean futures at 2339 yuan/ton, and the futures price will be 2447 yuan/ton after a while. You will earn (2447-2339) *1000 =108000 yuan, but the transaction fee will be deducted.

The settlement company makes daily settlement (according to the number of shares you buy and the change of futures price in one day).

The settlement company will settle your profit and loss every day. If your deposit is insufficient, it will inform you. If you don't make up the position in time, the exchange will automatically close the position.

Suppose you buy a futures contract, then if the futures price goes up, it means you have made a profit.

Profit: the amount reflected in the margin account increases, and the part exceeding the maintenance margin can be raised at any time.

Generally speaking, the amount of maintenance deposit is very low, and the actual delivery is very small, and most of them are abandoned halfway.

This is why futures have small and wide power, but profits and risks coexist.

You can make a lot of money, but you can also lose badly.

Therefore, the judgment should focus on the correct direction of futures price changes.

At present, many futures have been divorced from actual commodities, such as stock index futures and foreign exchange futures.

The above is purely personal theoretical knowledge, for reference only!