Urgent: U.S. stocks end narrowly mixed amid China's currency move

U.S. stocks reversed early big losses to close mixed Wednesday, as investors continued to assess impacts of the Chinese central bank's decision to improve its foreign exchange rate formation system.

The Dow edged down 0.33 point, or less than 0.01 percent, and the S&P 500 added 0.10 percent, while the Nasdaq gained 0.15 percent. Endite