The Shanghai Stock Exchange will revise the SSE 180 Index to make it a benchmark representative index and increase its investment value, Securities Daily reported. The reversion will increase the weights of tech-related companies and improve the index’s yield and coverage of market captialisation, the newspaper said. The index, created in 2002, consists of 180 large-cap blue-chip companies, covering 61% of market value, 63% of revenue, 82% of profit and 76% of dividends, the newspaper said.