Singapore stocks finished higher on Wednesday, with the benchmark Straits Times Index (STI) up 19.5 points, or 0.62 percent, to close at 3,143.25. A total of 3.44 billion shares changed hands with turnover of 1. 08 billion Singapore dollars (850 million U.S. dollars). Gainers outnumbered decliners 269 to 147, while 530 others finished unchanged. The STI index lost 11.74 points, or 0.37 percent, to close at 3, 123.75 on Tuesd