China will propose new regulations to block companies with large amounts of sensitive consumer data from floating shares in the U.S., Dow Jones reported, citing people familiar with the matter. China’s stock market watchdog has told companies and investors the envisioned rules will prohibit firms from listing abroad, particularly those seeking a foreign IPO via overseas-incorporated entities. Sectors with less sensitive information, such as pharmaceuticals, remain likely to win approval for an IPO, Dow Jones reported. The regulations could be finalized and implemented only around the fourth quarter, so the agency has asked some companies to suspend IPOs till then,...