New York
IF American investors thought it was difficult to make money from the boom in China's stock market, they're probably finding it even tougher to try to profit from a bust.
At the current cost to borrow shares of the biggest US exchange- traded fund (ETF) investing in mainland stocks, short-sellers need the equivalent of a 40 per cent annualised drop just to break even, according to Markit, a London-based research firm.
The 28 per cent plunge in the Shanghai Composite Index from its bull market...