BlackRock to JPMorgan See Deeper Emerging-Market Losses

Wall Street’s biggest firms are predicting intensifying bond losses in emerging markets, where borrowing costs have already soared to the highest in more than four years versus U.S. corporate debt, as the Federal Reserve considers curtailing record stimulus.

“We’re not yet convinced that we’ve seen the worst in terms of flows out of emerging markets,” Jeffrey Rosenberg, the chief investment strategist in fixed-income at New York-based BlackRock Inc., the world’s largest asset manager, said in a telephone interview, expressing his own views. “We see a lot of valuation change but we see the potential for even more valuation change.”