IN Shenzhen, B shares rose in active trading amid signs that foreign investors were returning to the market after months of neglect. ''Overall sentiment towards China stocks has improved in the past couple of weeks and now turnover is up, even in Shenzhen,'' said Julie Leung, an analyst with Sassoon Securities. The Credit Lyonnais Shenzhen B-share index gained 12.01 points, or 1.09 per cent, to 1,112.26 points on turnover of $17.23 million. The A-share index lost 15.43 points, or 1.24 per cent, to close at 1,229.43. Television maker Huafa shot up 31 per cent to $2.10, but turnover was a meagre $70,000. Real estate and trading group Gintian Industry rose 7.7 per cent to $4.20 on turnover of $180,000. ''We are expecting good interims, with net profit growth of up to 50 per cent for the first half,'' Ms Leung said. China Southern Glass was the day's most active stock, rising 2.5 per cent to $8.20 on turnover of $7.91 million.