BEIJING, Feb. 22 (Xinhua) -- The ChiNext Index, tracking China's NASDAQ-style board of growth enterprises, lost 4.47 percent to close at 3,138.67 points Monday.

The ChiNext Index, together with the Shenzhen Component Index and the Shenzhen SME (small and medium-sized enterprises) Board Index, reflects the performance of stocks listed on the Shenzhen Stock Exchange.