HONG KONG, Sept 30 (Reuters) - Hong Kong shares are set to open down 0.15 percent on Wednesday, after a surprise drop in a gauge of U.S. consumer confidence led to a weaker Wall Street, and amid caution ahead of a holiday. The benchmark Hang Seng Index was set to open down 32.04 points at 20,981.13. The China Enterprise Index of top locally listed mainland Chinese stocks was down 0.58 percent at 11,918.78.
Shell Electric Manufacturer (Holdings) soared 65.33 percent after China Overseas Land & Investment Ltd said it planned to make a general offer for the company worth up to HK$3.4 billion ($438.7 million). (Reporting by Sui-Lee Wee; Editing by Chris Lewis)