1. Upstream industry: machinery and equipment

2. Current industry: electrical equipment

3. Lower industry: power supply equipment

When a certain type of stock has the element of F, and such stock is substantially overshooting or overshooting the stock index, such stock is named as the F sector.

A stock sector is a sector named after certain companies that have some specific element associated with them in the stock market.

A theme stock or one or two hot sectors in the process of formation, the disk will form the following characteristics:

1, individual stocks or the entire sector volume significantly increased continuously.

2, the price fluctuations continuously increased, often pull the end of the closing market or hit the end of the market; opening, the middle of the market also have this phenomenon.

3, a sector of the stock price trend with the increase in turnover began to turn from weak to strong. When the market fell, individual stocks and plates do not fall, the market rose, the plate rose over the market, the plate may become a market hot spot.

In determining whether the hot plate, but also pay attention to a few points:

1, the process of hotspot formation is the process of intervention of the main funds, hotspot formation of the longer the time, the duration is also longer, or duration is not long, but the plate stock prices rose by a large margin.

2, the stock market is not likely to appear at the same time too many hot panels, if the market at the same time crazy speculation, pay attention to the general market whether there is a wave of the top signal. When the new hot plate formation, the old plate hot will be adjusted.

3, hot plate transfer process, the disk is often a larger adjustment, the main funding agencies to adjust the position structure, stock exchange and plate operation.

There are two main ways to categorize the plate: industry classification and conceptual classification.

Industry sector classification: the China Securities Regulatory Commission (CSRC) has classification standards for listed companies, which is official. Quarterly requirements for companies greater than 50% of the business to categorize the industry to which the company belongs. This content can be found on the website of the Securities and Exchange Commission in the last quarter of all companies industry classification.

These include: A agriculture, forestry, animal husbandry and fisheries; B mining; C manufacturing; D electricity, heat, gas and water production and supply; E construction; F wholesale and retail trade; G transportation, warehousing and postal services; H accommodation and food service; I information transmission, software and information technology services; J financial services; K real estate; L leasing and business services; M scientific research and technology Services; N Water Conservancy, Environment and Public **** Facilities Management; O Residential Services, Repairs and Other Services; P Education; Q Health and Social Work; R Culture, Sports and Recreation; S General.