They tightened margin requirements in January, and again in April, when they also facilitated short-selling by expanding the number of eligible stocks. The event that ultimately seems to have pricked the bubble was the China Securities Regulatory Commission’s June 12 announcement of plans to limit the amount that brokerages could lend for stock trading.
但许多评论者没有看到，中国监管当局在大牛市的最后六个月采取了遏制价格的措施。1月份，保证金要求有所提高，4月份又提高了一次，同时还扩大了融券标的数量以方便卖空。最后扼杀泡沫的事件似乎是中国证监会6月12日宣布限制券商能够用于股票交易贷款的额度。