Stocks end mostly lower on Wall Street
Stocks ended mostly lower on Wall Street, giving up a modest gain from earlier in the day after Federal Reserve chairman Janet Yellen gave an upbeat assessment of the economy.
Ms Yellen, speaking at a conference in Wyoming on Friday, said the case for raising interest rates has strengthened given improvements in the economy.
Phone companies and utilities, which would suffer if interest rates rose and investors looked elsewhere for income, fell more than the rest of the market.
The Dow Jones industrial average fell 53 points, or 0.3%, to 18,395.
The Standard & Poor's 500 index slipped three points, or 0.2%, to 2,169. The Nasdaq edged up six points, or 0.1%, to 5,218.
Bond prices fell. The yield on the 10-year Treasury note rose to 1.62%