During the trading hours, the current price of the stock is the trading price at that time. It is related to buying 1 and selling 1. If someone buys at the current price at the selling price of 1, then the current price of the stock is the previous selling price of 1. If someone buys at the current price 1, then the current price of the stock is the previous buying price 1. Principle of stock trading: 1. Price priority principle: the price priority principle means that a higher buying declaration takes precedence over a lower buying declaration, and a lower selling declaration takes precedence over a higher selling declaration; Declare at the same price, the first to declare is preferred. In addition to the above-mentioned priority principle, when computer terminals declare bidding and board bidding, market trading is given priority to restrict trading. 2. Closing time priority principle: this principle refers to: oral bidding, arranged in the order heard by the intermediary broker; When the computer terminal declares the bid, it is arranged in the order of time accepted by the computer host; When bidding on the chessboard, arrange them in the order seen by the intermediary brokers. When it is impossible to distinguish the principles of stock trading, the intermediary broker will organize a lottery to decide. 3. Deciding principle of closing a deal: This principle means that when bidding verbally, the price of the highest buying declaration and the lowest selling declaration is the same, that is, closing a deal. When applying for bidding at a computer terminal, except as stipulated in the preceding paragraph, if the declared price of the buyer (seller) is higher (lower) than the declared price of the seller (buyer), the average intermediate price of the declared prices of both parties shall be adopted; If the buyer and the seller only declare the market price but not the unlimited price, the latest transaction price of the day or the price indicating the current price shall be adopted.
There are two reasons for the huge difference between buying and selling stocks:
1 The market is so weak that there are great differences between buyers and sellers.
Especially in the early morning of small-cap stocks in the bear market period, it is often seen that the bid-ask price difference is a few cents or even a few cents. The reason why this happens is that most of the prices sold by sellers and investors because of the previous market crash are meat cutting plates. Because it is a meat cutting plate, it will be more reluctant to sell, and there is an attitude of hanging a higher price at will.
On the other hand, the buyer's share price will be lower, because there are many cheap stocks in the market, and it is difficult to buy them tomorrow if you don't buy them today. Therefore, most of the buyers' investors hang out and pay at a lower price, hoping that the price will be cheaper. Buyers in the bear market atmosphere have a mentality of thinking low.
So at that time, there were great differences between buyers and sellers on the pricing of shares, which made the price difference between buying one and selling one very big.
2 Pull-up or pull-down is too fast, which makes it too late for pending orders to change transaction orders.
When the stock rises sharply and rapidly, a large number of bills are directly eaten into the price of selling one, selling two or even selling three. However, pending orders are generally based on current purchase orders and often lag behind immediate transactions. For example, a big hand ate all the lists on 5 yuan, 5.0 1 and 5.02 yuan. At this time, selling 4 becomes selling 1, and its price is 5.03 yuan. However, the person who bought 1 on the pending list could not have predicted such a rapid increase in advance, and stayed at 4.99 yuan after buying one.
This is to buy a 4.99 yuan and sell a 5.03 yuan.
The same is true of the sharp decline.