The FTSE a50 index includes 50 companies with the largest market value in China A-share market, which is the most representative index of China A-share market (Shenzhen and Shanghai), while the Shanghai Composite Index includes A-shares and B-shares, reflecting the changes of stock prices listed on the Shanghai Stock Exchange.

Under normal circumstances, the rise and fall of FTSE a50 index will also drive the rise and fall of Shanghai Composite Index, which is a positive reaction, but there may be differences in reality because the stock market is affected by many factors.