There are two main categories of plate classification: industry classification and concept classification.

industry sector classification:

it includes: a agriculture, forestry, animal husbandry and fishery; B mining industry; C manufacturing industry; D electricity, heat, gas and water production and supply industries; E construction industry; F wholesale and retail trade; G transportation, warehousing and postal services; H accommodation and catering industry; I information transmission, software and information technology services; J financial industry; K real estate industry; L leasing and business services;

there are also m scientific research and technical services; N Water conservancy, environment and public facilities management; O Resident services, repairs and other services; P education; Q health and social work; R Culture, sports and entertainment; S synthesis; ***19 categories, and secondary 91 subcategories.

concept plate classification: this is a variety, and there is no unified standard. Commonly used conceptual plate classification includes regional classification: such as Shanghai plate and xiong'an new area plate; Policy classification: new energy sector, free trade zone sector, etc.;

time to market classification: sub-IPO, etc. Investor classification: social security heavy plate, heavy plate of foreign-funded institutions, etc. Index classification: Shanghai and Shenzhen 311 plates, SSE 51 plates, etc.; Hot economy classification: network finance plate, internet of things plate, etc. According to the classification of performance: blue-chip plate, ST plate and so on, there are endless categories of concept plates!

Some terms of stock:

Opening price: the opening price is the first transaction price in the bidding stage, and the closing price of the previous day is the opening price if there is no transaction.

closing price: refers to the price of the last stock traded every day, which is the closing price.

highest price: refers to the highest price among the prices traded on that day. Sometimes there is only one highest price, and sometimes there is more than one.

lowest price: refers to the lowest price among the prices clinched on that day. Sometimes there is only one lowest price, and sometimes there is more than one.

price limit: it means that, in a trading day, except for the securities on the first day of listing, the trading price of securities shall not rise or fall more than 11% compared with the closing price of the previous trading day; Entrustment exceeding the price limit is invalid.

bull market: bull refers to investors who are optimistic about the stock market and expect the stock price to be bullish, so they buy stocks at a low price and then sell them when the stock rises to a certain price to obtain the differential income.

Short market: Short refers to investors and stock dealers who think that although the current stock price is high, they are pessimistic about the stock market prospects and expect that the stock price will fall, so they sell the borrowed stock in time and buy it when the stock price falls to a certain price, so as to obtain the differential income.

Dishwashing: Speculators first cut the stock price sharply, causing a large number of small stock investors (retail investors) to panic and sell their stocks, and then raise the stock price in order to take advantage of the opportunity.

retracement: in the stock market, the stock price keeps rising, and finally it reverses to a certain price because the stock price rises too fast. This adjustment phenomenon is called retracement. Generally speaking, the retracement range of stocks is smaller than the increase range, and usually it reverts to the original upward trend when it falls back to about one third of the previous increase range.

rebound: in the stock market, the stock price shows a downward trend, and the adjustment phenomenon that the stock price eventually reverses and rises to a certain price due to the rapid decline of the stock price is called rebound. Generally speaking, the rebound rate of stocks is smaller than the decline rate, usually when it rebounds to about one-third of the previous decline rate, it resumes the original downward trend.

short selling: investors predict that the stock price will rise, but their own funds are limited, so they can't buy a large number of stocks, so they pay part of the deposit first, and raise money from the bank through brokers to buy stocks, and then sell them when the stock price rises to a certain price to obtain the difference income.

short selling: investors predict that the stock price will fall, so they pay the mortgage to the broker and borrow the stock to sell first. When the stock price falls to a certain price, buy the stock, then return the borrowed stock and get the difference income from it.

kill more: that is, kill many bulls. Investors in the stock market generally think that the stock price will rise that day, so everyone grabs the bull hat to buy stocks. However, the stock market backfires, the stock price has not risen sharply, and it is impossible to sell stocks at a high price. Until the end of the stock market, stock holders compete to sell, resulting in a sharp decline in the stock market closing price.

short selling: short selling. Stock holders in the stock market agreed that the stock would fall sharply that day, so most people rushed to sell short hats to sell stocks. However, the stock price did not fall sharply that day and they could not buy stocks at a low price. Before the end of the stock market, short sellers had to compete to make up, resulting in a sharp rise in the closing price.

gap: it means that the stock price starts to jump sharply stimulated by strong bullish or negative news. Gaps usually appear before the start or end of a big stock price change.

short-covering: it is the behavior of short sellers to buy back previously sold stocks.

lock-in: refers to the trading risks encountered in stock trading. For example, investors expect the stock price to rise, but the stock price has been declining after buying. This phenomenon is called long lock-in. On the contrary, investors expect the stock price to fall and sell the borrowed stock short, but the stock price has been rising. This phenomenon is called short-selling

resistance line: the stock market is influenced by bullish information. When the stock price rises to a certain price, the bulls think it is profitable, but in fact there are a lot of sales, which makes the stock price stop rising and even fall back. In the stock market, the price when encountering resistance is generally called a level, and the level when the stock price rises is called a resistance line.

support line: the stock market is affected by bad news. When the stock price falls to a certain price, the bears think it is profitable and buy a lot of stocks, so that the stock price no longer falls, or even tends to rise. The checkpoint when the stock price falls is called the support line.

IPO is initial public offerings. Initial public offering refers to the first time that an enterprise sells its shares to the public. Usually, joint-stock companies sell through underwriters according to the terms agreed in the prospectus or registration statement issued by them. Generally speaking, once the initial public listing is completed, the company can apply for listing on the stock exchange or quotation system.

daily limit

The maximum price on the trading day in the securities market is called daily limit, and the price at the time of daily limit is called daily limit price.

ST stock

On April 22, 1998, the Shanghai and Shenzhen Stock Exchanges announced that they would carry out Special treatment on the stock trading of listed companies with abnormal financial status or other conditions. Because of the "special treatment", the abbreviation was preceded by "ST". Therefore, this kind of stock is called ST stock.

T+1 settlement system

Since October 1, 1995, in order to ensure the stability of the stock market and prevent excessive speculation, the stock market has implemented the "T+1" settlement system, and the stocks bought on the same day cannot be sold until the next trading day, while the funds are still "T+1", that is, the funds returned on the same day can be used immediately. This method of settlement is suitable for China's A-share, fund and national debt transactions.

trading time:

Monday to Friday (except statutory holidays)

9: 31 am-11: 31 pm-13: 11 pm

(1) Bidding principle: price first, time first. Buying orders with higher prices take precedence over buying orders with lower prices, and selling orders with lower prices take precedence over selling orders with higher prices. Entrusting at the same price will take precedence in chronological order.

(2) Bidding method: call auction will be held from 9: 15 am to 9: 25 am; Continuous bidding will be conducted from 9: 31 am to 11: 31 am and from 13: 11 pm to 15: 11 pm (effective entrustment will be handled one by one).

The reference comes from: Baidu Encyclopedia-Basic Knowledge of Stock Entry.