THE Shanghai Securities Exchange saw the highest monthly turnover in the history of China's stock markets last month. Buoyed by 12 new listings, turnover reached 32.66 billion yuan (about HK$43.77 billion at the official exchange rate). Shanghai stocks were on a rising trend during the month, according to Shanghai Securities News - the city's securities newspaper. It said the record turnover represented a 37.92 per cent growth on October and more than half of last year's total turnover at the exchange. ''The Shanghai stock market's performance improved in November due to the 12 new listings (10 in the A share market and two in the B share market),'' said the newspaper. As of November 30, the stock index leaped 20.89 per cent above October 31 to close at 984.93 points. In the same period, the B share index gained 17.73 per cent to 81.29 points, and the A share index rose 21.1 per cent to 1,020.53, according to the newspaper.