BBC News - Wall Street Market Report 28 May 2013 Last updated at 15:30 Continue reading the main story Continue reading the main story (Open): US stocks jumped on opening after investors took heart from comments by central banks indicating that monetary stimulus measures would remain in place. The Dow Jones index was up 174.63 points, or 1.1%, at 15,477.73. The Nasdaq rose 47.69 points to 3,506.73 and the S&P 500 was 21.61 points higher at 1,671.21. Shares had fallen at the end of last week on fears that the US Fed would scale back its bond buying programme. However, since then, members of both the Bank of Japan and the European Central Bank have said their policies are set to remain unchanged. This triggered a rise in equities in Asia and across Europe, and Wall Street continued the trend when trading got underway after Monday's Memorial Day holiday. "Investors want to make sure that everyone is in the same boat, since monetary policy has been the mother's milk of the rally so far this year and there was some concern that policy would be changed or amended," said Paul Nolte, managing director at Dearborn Partners. There was also some good economic news on Tuesday, with the latest S&P/Case-Shiller house price index showing the strongest annual rise for seven years. Shares in Tiffany & Co rose 5.2% after the luxury retailer reported better-than-expected first quarter sales, with revenue up 9.3% to $895.4m.