The Shanghai Stock Exchange is considering introducing indices for treasury bonds and investment funds as part of its move to launch new products to serve the growing needs of investors. Exchange statistics official Zhang Kan said yesterday the proposed T-bonds index would use simple interest yields as the basis for its compilation. The bond categories to be included in the index are yet to be decided. There were a total of 17 T-bonds listed in Shanghai last year, accounting for 63 per cent of the exchange's turnover of 2,760 billion yuan (about HK$2,560 billion). Mr Zhang said the index would better reflect the price movements of listed securities and help investors analyse different investment portfolios. He did not give a timetable for its launch. No details were given on the investment fund index. There were 15 investment funds listed in Shanghai last year, although regulations governing investment funds have yet to be promulgated. Mr Zhang told a HSI Services conference yesterday of the successful launch of the SSE 30 Index in July last year, based on a selection of 30 stocks using their free-float shares as the weighting. The SSE 30 Index is more popular among investors than the Shanghai Composite Index, which is based on all listed shares. As at March this year, the Shanghai exchange had 376 listed securities, with a market capitalisation of 749 billion yuan. 'As the Shanghai stock market is maturing, the SSE 30 was introduced to meet the needs of investors seeking reliable means to measure the overall performance of listed companies and the market in general,' he said.