This morning, our professional ** "Times" here published a theme article "Justifying the Name of the Shanghai Composite Index" and swept it through.
I understand what "ugly people do a lot of weirdness"?If you want to be in shape, you want to be good-looking, you want to be smart or not, you have to talk awkwardly, you want a little red heart, is it disgusting?
I really can't stand it, so I'll give you a popular science:
The S&P 500 index is a fixed 500 companies
The constituent stocks of the Shanghai Composite Index are dynamically adjusted, and the total number will change according to market conditions.
The return of the Shanghai Composite Index should be adjusted according to changes in the index's constituent stocks.
On December 19, 1990, the base of the Shanghai Composite Index was set at 100 points, and there were only 8 constituent stocks in the index at that time. If calculated according to the base 100, then as of December 23, 2023, the ** point of the Shanghai Composite Index is 2900 points, and the yield is 2800%, that is, the annualized return is 108%, which is very high, of course.
However, on December 19, 1990, there were only 8 constituent stocks in the Shanghai Composite Index, and most of them had collapsed. If calculated on a base 100, then the yield is actually negative.
So, it's normal for everyone to lose money.
Now it's good, from -895% to 108%，A full 1003%, what is this concept?
If medical cosmetology is a hair change, then we have changed it from the bottom to the top.
You put on makeup, beautify your face, dress up, I respect your choice, just go your own way.
But if you want to have no figure, if you want to have no good looks, if you want wisdom without wisdom, if you want to have an embarrassing chat, and if you come out with a little red heart, is it disgusting?
What's even more unbearable is that there are people who explain that it is"Born beautiful"!
Of course, the Shanghai Stock Exchange Index applies "flexibility" and "principle" very well, which is a professional ability, but as a professional, do you want to "eat soft rice and hard food"?
In fact, just copy the S&P algorithm, and the cardinal number is as much as it is.
The number of enterprises in the Shanghai Stock Exchange Index has increased from 8 to 2,200, and there are only 8 companies when the base is 100, how can the base 100 be used to calculate the rate of return?Is weighted ex-weighting hard?
Difficult!It's so hard for stockholders!
100 help plan