Futures point to lower start ahead of readings on consumer confidence, new home sales.<br><br>LONDON
 (CNNMoney.com) -- U.S. stocks looked set for a weak open Tuesday as 
traders headed back to work after the holiday weekend.<br><br>At 4:26 a.m. ET, Nasdaq and S&amp;P futures were narrowly higher and pointing to a flat to lower start for Wall Street.<br><br>Stocks
 sank Friday amid surging oil prices and another weak reading on the 
housing market. U.S. markets were closed Monday for Memorial Day.<br><br>Crude
 prices remained near the $133 a barrel level Tuesday, supported by 
supply concerns and worries about the health of the U.S. economy.<br><br>On the economic front, readings on consumer confidence and new home sales are both on tap.<br><br>In global trade, Asian stocks ended mostly higher. European shares fell in early trading. U.K. markets were closed Monday.<br>