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In Asia Wednesday, Japan's Nikkei 225 Index rose 0.9% to 10,177. Hong Kong's Hang Seng Index sank 0.9%, ending the day at 21,612 and China's Shanghai Composite Index lost 0.6% to close at 3,255.

UBS (UBS) blames a computer glitch for placing off-hour buy and sell orders of Capcom Co. (CCOEF) convertible bonds worth $31 billion (3 trillion yen) and due to mature on March 31. That was 100,000 times more than it intended. The trade was canceled at no cost to UBS by the Tokyo Stock Exchange,...