Hang Seng China A Industry Top Index (HSCAIT) is one of the Hong Kong stock market indexes produced by the Hang Seng Indexes Company Limited. HSCAIT was launched on 21 Sep 2009. It is used to reflect the performance of A-share index that captures all the industry leaders in mainland China. The performance of industry leaders in each of the 11 industries under the Hang Seng Industry Classification System is tracked through this index.