Major U.S. stock-indexes higher on Friday morning after Federal Reserve Chair Janet Yellen said the case for raising U.S. interest rates has strengthened in recent months. Yellen, speaking before a gathering of global central bankers did not indicate when the Fed would raise rates, but said the central bank thinks future hikes should be "gradual".

Most of Dow stocks in positive area (28 of 30). Top gainer - Intel Corporation (INTC, +1.35%). Top loser - NIKE, Inc. (NKE, -0.19%).

All S&P sectors also in positive area. Top gainer - Basic Materials (+1.1%).

At the moment:

Dow 18515.00 +67.00 +0.36%

S&P 500 2181.75 +8.25 +0.38%

Nasdaq 100 4804.75 +22.50 +0.47%

Oil 47.80 +0.47 +0.99%

Gold 1336.60 +12.00 +0.91%

U.S. 10yr 1.54 -0.03