2. When the position reaches a certain proportion, the exchange will limit the opening of the position. In other words, you can only close the position, not open the position.

Open the warehouse, open the warehouse. There are usually two operating modes in trading, one is bullish (buyer) and the other is bearish (seller). Whether you are long or short, placing an order is called "opening a position". It can also be understood that in trading, whether buying or selling, all new positions are called opening positions.

An indicator used by extended data to reflect the overall price change of sample stocks. The determination of stock price is very complicated, because people have different views on the intrinsic value of an enterprise and its future profit prospects. Pessimists want to sell, optimists want to buy, and when the buying amount is greater than the selling amount, the stock price will rise; When the buying amount is less than the selling amount, the stock price falls.

So the stock price is consistent with the intrinsic value, but sometimes there are deviations. Investors tend to look for stocks whose intrinsic value is greater than the market price, so the price of stock index is constantly changing.

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