April 10, 2012 (Chinavestor) An unexpected surplus in March changed investor sentiment in an instant on the Mainland, helping the Shanghai Composite index (SHA:000001) close the day in the black. but the Hang Seng index (INDEXHANGSENG:.HSI), the most important barometer of the Hong Kong Stock Exchange, fell 236.8 points or 1.2% following lower the Dow from a day earlier. The decline was universal in Hong Kong, stocks that fell outnumbered those that advanced four to one among components of the hang Seng index (INDEXHANGSENG:.HSI). Chinese stocks led the decline, each and every component of the Xinhua 25 Index fell on Tuesday. This index tracks the largest Mainland Chinese companies listed in Hong Kong. China Mobile (HKG:0941) did relatively well but Huaneng Power (HKG:0902) and China Life insurance (HKG:2628) fell hard on policy outlook and rising energy prices.