US stocks dip ahead of Fed meeting

New York - Wall Street stocks opened slightly lower on Tuesday ahead of a two-day Federal Reserve meeting expected to shed light on the US central bank's timing to raise interest rates.

Five minutes into trade, the Dow Jones Industrial Average stood at 17 786.43, down 4.74 points (0.03%).

The broad-based S&P 500 dipped 0.82 (0.04%) to 2 083.61, while the tech-rich Nasdaq Composite Index shed 2.52 (0.05%) to 5 027.45.

Better jobs and retail sales data have altered the outlook somewhat for US monetary policy after a weak first quarter. Although the Fed is not expected to lift interest rates on Wednesday, Fed chair Janet Yellen could signal a move is near.

European stocks were in negative territory on continued worries about a Greek debt default. Greek Prime Minister Alexis Tsipras charged that the International Monetary Fund had "criminal responsibility" for Greece's debt crisis, underscoring that a deal with creditors remains distant.