How to select reliable securities analysts?

Securities analysts are also known as seller analysts , Refers to analysts employed by securities companies , It is a company providing services in the market 、 industry 、 The monopoly power of economic and strategic research .  Seller analysts conduct research on industries and companies , Write a research report on the basis of analysis and research , Predict the company's earnings per share ,  And it is expected that the stock will rise , Therefore, they have a great impact on the rise and fall of stock prices in the market . Since the energy of securities analysts is so great ,  So how to select reliable analysts among many securities companies ？  Today we will use data and python Let's analyze which analysts recommend   The stock of is relatively reliable , Which analysts are cutting leeks .

  One 、 data mining   First, we find the investment rating stock selection in Sina Financial Data Center , It contains the latest ratings of some securities analysts on individual stocks recently ,  use Selenium Library to access web pages and get web page source code , And then use pd.read_html（） Function to parse . Securities analyst rating   common 86 page , each page 60 Data , Totalling 5000 strip . The total number of analyst ratings crawled According to the following （ Some examples ）：

  Two 、 Revenue calculation After crawling these data , According to the analyst report of securities companies , Calculate the rise and fall to a certain time , Rank . Processing data In the process , We should consider the following ：① Exclude unlisted shares , There is a situation that analysts rate unlisted stocks ;② The analysis report of securities companies released the situation of one word limit rise the next day , Then the yield is 0;③ There is no data or too little data , Then the yield is 0. The final result is as follows （ Some examples ）：

 3、 ... and 、 Analyst ranking 
 Let's calculate the stocks recommended by various analysts 10 Daily average yield and analyst forecast times , And rank the accuracy of analysts .
 First of all, in accordance with the 10 The daily yield is ranked as follows ：
 front 10 Name rank 

 after 10 Name rank  

 The number of predictions screened this time is greater than 2 Analysts , And 10 Rank by daily average yield .
 front 10 Name rank ：

 after 10 Name rank ：