China's Shanghai Composite Index closed down 7.62 points on April 30 (Wednesday), a drop of 0.23%, at 3279.03 points;
China's Shenzhen Component Index closed up 50.02 points on April 30 (Wednesday), an increase of 0.51%, at 9899.82 points;
China's CSI 300 Index closed down 4.51 points on April 30 (Wednesday), a drop of 0.12%, at 3770.57 points;
China's ChiNext Index closed up 16.09 points on April 30 (Wednesday), an increase of 0.83%, at 1948.03 points;
China's Science and Technology Innovation 50 Index closed up 8.55 points on April 30 (Wednesday), an increase of 0.85%, at 1012.42 points.