hang seng index is manipulated, the market makers has to wipe out all the recent shorts, afterall the exchange makes its money from market makers. there is also a close collaboration between gov't and business leaders, up market is good for stability, heard of the recent case of the niece of a listed co. director, who was drunk driving, stopped by the police and gave the police a slap, and was her 3rd offence and guess what she gets? community service, anyone else would get a prison sentence. so a hypothetical scenario might be tycoon A might say to tycoon B lets prop up this stock tomorrow or something as such unless there is a real market panic then all deals off, its everyone for themselves






