Omni Partners, the $965 million London hedge fund whose wagers against China helped it beat the industry last year, said the yuan may fall 15 percent in 2016, and even more if the nation has a credit crisis. The currency, which tumbled to a five-year low last week, would have to drop to 7 or 7.5 a dollar to meaningfully reverse its appreciation and be commensurate with the depreciation of other slowing emerging markets, Chris...