Large sample situation
The results of correlation analysis are shown in the following table. It can be seen that the correlation coefficient obtained by using all the data of daily LME aluminum (March electronic disk) trading volume and daily LME aluminum (March electronic disk) closing price from June 5, 2009 to June 26, 2002 is 0.099, which is significantly positive, but the absolute value of the correlation coefficient is very small.
Second, the sample selection in the last 75 trading days.
The results of correlation analysis are shown in the following table. It can be seen that the correlation coefficient between volume and closing price is 0.426, which is significantly positive.
Three. Sample selection in the past 35 trading days
The results of correlation analysis are shown in the following table. It can be seen that the correlation coefficient between volume and closing price is 0.267, and the correlation is not significant.
Four. conclusion
The above correlation analysis shows that the trading volume of LME aluminum (March electronic disk) has a positive correlation with its daily closing price in a long period of time, and the short-term correlation is not significant, but there is a positive correlation trend. This confirms the basic viewpoint of quantity and price coordination.