 "A Wall Street sign is pictured in the rain outside the New York Stock Exchange in New York.")
US stocks opened lower for the fourth straight day as investors remained on the sidelines ahead of the Federal Reserve's policy-setting meeting and a vote on Britain's membership in the European Union.
The Dow Jones industrial average was down 30.92 points, or 0.17%, at 17,701.56, the S&P 500 was down 4.13 points, or 0.2%, at 2,074.93 and the Nasdaq composite was down 10.65 points, or 0.22%, at 4,837.79.
