US STOCKS-Dow edges down after changes; Nasdaq up

(Updates to open)

NEW YORK, Feb 11 (Reuters) - The Dow industrials opened down on Monday as changes to average weighed on some shares, including Altria Group Inc (MO.N: Quote, Profile, Research), while the Nasdaq index rose on deal news that boosted technology stocks.

The Dow Jones industrial average .DJI was down 29.50 points, or 0.24 percent, at 12,152.63. The Standard & Poor's 500 Index .SPX was down 1.38 points, or 0.10 percent, at 1,329.91. The Nasdaq Composite Index .IXIC was up 4.00 points, or 0.17 percent, at 2,308.85. (Reporting by Caroline Valetkevitch; Editing by Kenneth Barry)