It’s no longer a question of whether China’s stock-market rally is a bubble, but when the bubble will burst. That’s the refrain from a growing number of analysts as valuations climb to levels that by some measures already exceed the peak of China’s last equity mania in 2007. A market crash may come within six months, Bocom International Holdings Co. said Tuesday, citing an analysis of global bubbles over 800 years that shows the speed of gains in China mirroring past market peaks. Macquarie Investment Management, whose Asian stock fund is outperforming 97 percent of peers in 2015, has already eliminated exposure to mainland shares after turning bearish for the first time in seven years. The government may engineer a correction if valuations rise much further, according to CLSA Ltd. “We are probably going to be in […]