AlQa'dah 4, 1436, Aug 19, 2015, SPA -- China's main Shanghai stock index reversed its loss to finish higher on Wednesday while other Asian stock markets were mostly lower as investors were rattled by volatile Chinese stocks and concerns about growth in the world's second-largest economy, AP reported. The Shanghai Composite Index closed up 1.2 percent at 3,794.11 after plunging as much as 5 percent during the day. Japan's Nikkei 225 slipped 1.6 percent to 20,222.63 and South Korea's Kospi fell 0.9 percent to 1,939.38. Australia's S&P/ASX 200 rose 1.5 percent to 5,380.20. Indonesia was also lower but markets in Thailand and New Zealand were stable. Benchmark U.S. crude fell 23 cent at $42.39 per barrel in electronic trading on the New York Mercantile Exchange. The contract closed up 75 cents at $42.62 Monday. Brent crude, a benchmark for international oils used by many U.S. refineries, dipped 7 cents at $48.74 per barrel. The U.S. dollar weakened to 124.232 yen from 124.391 yen while the euro strengthened to $1.107 from $1.103.