Shares soared in the Shanghai and Shenzhen stock markets on Wednesday, with securities companies and the scarce-resources sector the most bullish, sending the benchmark Shanghai Composite Index back to the psychologically important 2,000 level.

The Shanghai Composite Index jumped 42.68 points, or 2.17 percent, to 2,008.13 points, the biggest advance since March 20.

The Shenzhen Component Index closed at 7,851.257 points, up 3.3 percent, while the Hang Seng China Enterprises Index, which is for mainland companies traded in Hong Kong, rose 1.81 percent.

Li Daxiao, an analyst with Yingda Securities, said that the fact that the SCI went back to 2,000 points level will help investors regain confidence.