preface

I don’t remember when I first got into financial management and investment. Maybe it was reading some books related to economics in college that aroused my interest in financial management and investment. I remember reading MAO Yushi’s Economics in Life at the very beginning, then Samuelson’s Microeconomics and Macroeconomics, and Adam Smith’s Wealth of Nations, the father of modern economics, and so on. These works enlighten me on economics. For example, “the price is determined by the intrinsic value of commodities and the relationship between supply and demand”, “the scarcity of resources is the first principle of economics”, “efficiency and fairness”, “market economy and planned economy” and so on. After reading these books, I realized that currency inflation would devalue the real RMB in my pocket, increase prices and decrease purchasing power, so I thought of the capital market eager to try.

It was 16 years at the beginning. When I was a sophomore, I regularly took out some money from my living expenses every month to invest in the fund, and then entered the stock market after graduation. Along the way, I have been groping for a steady, not by the daily ups and downs of the anxiety of investment.

Over the years, I have a better understanding of investing in stocks. For example, “stock price” is equivalent to the price of commodities, which is determined by the value of commodities themselves and the relationship between supply and demand. The price of a stock is also determined by the fundamentals of the underlying enterprise and investors’ enthusiasm for its trading. In the short term, investors’ enthusiasm for trading may affect the drastic fluctuations of the stock price, but in the long term, the stock price always fluctuates around the value of the enterprise.

Two important factors in stock investment are: 1. Stock selection and 2.

  1. Stock selection is the basis, if you choose a business situation each decline, sunset industry stocks, the efforts behind are going in opposite directions
  2. Timing is also critical. For example, the company behind a stock has been thriving, but if the current stock price is already high, the price-earnings ratio is already outrageous, then enter the market, it may face a long period of price decline, which is also very difficult.

Strategy (Plan)

Since the two important factors of stock investment are: 1. Stock selection and 2. Timing, is there any way to help us invest? As a programmer, you can use programming to solve problems. Use ten positions of public funds to assist investment. About strategy is as follows: using the crawler technology, crawl on each fund’s quarterly market basic information (the most important thing is ten big equity holdings information), and with these data, the data filter and analysis, the statistics of every stock each quarter in the number of public funds hold on the market, and then sort the results, compare with the weight.

As shown in the chart, the top 100 stocks of funds in the first quarter of 2021 and the fourth quarter of 2020.

For example, the number of kweichow Moutai 2021-Q1 fund holdings is 2,039, and the number of 2020-Q4 fund holdings is 2,079

Note: Data statistics are for funds with stock holdings >= 20% (excluding currency, and bond funds)

Get the latest quarterly 100 fund heavy warehouse data (auxiliary we said above the stock selection), and then the same stock in the last quarter of the number of positions for comparison, get the following results:

Filter the data to find stocks that have risen relative to the previous quarter (to aid the timing we talked about above). These shares as our research pool (other conditions, of course, can also according to the condition of selected stock research pool, such as a fund fund holdings, the morning star ratings high fund fund holdings, etc.), the stocks further study of the pool, combined with their own research, finally choose the own the underlying shares.

Why choose the heavy positions of public funds as the entry point of data analysis? The previous said their own stock buying process, very difficult, but the final income is not as good as quietly buy fund, side shows that the public fund institutions stock selection ability is still relatively strong, or relatively reliable. What’s more, the scale of public funds is getting bigger and bigger, and they have more and more say in the capital market. In addition, our data are collected from thousands of funds in the market, which is more representative.

The last

At present, the above summary data project — fund-morning-star-Crawler has been open source to Github, and you can clone the data to run locally. At present, the web project of data display and query is still under development, and will be provided for you to use in the future. The original intention is to use these public fund data, through our summary, filtering analysis to get the final data, we call it anchor data. Focus on anchor data to empower our investment career. Of course, investment is a very deep knowledge, but also we need to practice. As The Intelligent Investor puts it:

Investing successfully over the course of a lifetime doesn’t require top INTELLIGENCE, superior business acumen or secret information. It requires a sound body of knowledge to base decisions on, and the ability to control your emotions so that they don’t erode that system.

“The East wants to dawn, Mo Daojun left early. One is not old, the scenery here is unique “, finally thank you for reading, I wish everyone can be friends of time, get success in life investment road.