In February and March, global stock markets plummeted because of the pneumonia epidemic. In April, because the external epidemic reached the platform period, the capital market rebounded one after another, crude oil futures showed negative prices, annual reports and quarterly reports were intensively disclosed, and countercyclical policies were introduced one after another.

In 2020, affected by the pneumonia epidemic, investors' risk aversion warmed up, European and American stock markets plummeted, and global stock markets fell by 30%-40%.

In April, the A-share market fluctuated higher, and the main indexes all rose to varying degrees. The Shanghai Composite Index rose 4.0%, the Shanghai and Shenzhen 300 Index rose 6. 1%, the Growth Enterprise Market Index rose 10.6%, and the Small and Medium Board Index rose 9.0%. In terms of industry performance, most of the 28 Shenwan first-class industries rose: leisure services rebounded sharply after deep adjustment in the early stage, with a cumulative increase of 2 1.7% in a single month, far ahead of other industries; The electronics industry followed closely, rising by11.4%; Electrical equipment, food and beverage, and building materials all increased by more than 8%; Only three industries, namely textile and clothing, mining, agriculture, forestry, animal husbandry and fishery, fell, among which textile and clothing fell the most, accounting for 5.2%. Mining industry decreased by 0.8%; Agriculture, forestry, animal husbandry and fishery with obvious excess returns in the previous period were slightly adjusted, falling by 0.3% in April.