On February 11, the Shanghai and Shenzhen stock indexes fell collectively. The Shanghai Composite Index fluctuated and fell in early trading, then rebounded and turned red, and then fell again in the afternoon; Shenzhen Component Index, ChiNext Index, and Science and Technology 50 Index fluctuated at low levels in early trading, and accelerated in the afternoon. The decline expanded, and the ChiNext Index fell by more than 2.5%. As of the close, the Shanghai Composite Index reported 3462.95 points, down 0.66%, with a turnover of 426.298 billion yuan; the Shenzhen Component Index reported 13224.38 points, down 1.55%, with a turnover…