US stocks : Dow down 0.2 pct

The Dow Jones industrial average was down 23.66 points, or 0.17 percent, at 13,511.23. The Standard & Poor's 500 Index was up 0.29 points, or 0.02 percent, at 1,472.63. The Nasdaq Composite Index was up 6.77 points, or 0.22 percent, at 3,117.54.

The biggest drag on the Dow was Boeing, whose shares fell 3.4 percent to $74.34 on concerns about its new Dreamliner passenger jets. Japan's two leading airlines grounded their fleets of 787s after an emergency landing, adding to safety concerns triggered by a series of recent incidents.

After the bell, shares of eBay were trading up 0.7 at $53.28, reversing an initial decline following the release of its results. Also after the close, shares of CBS rose 8.3 percent to $41.10 after it said it will convert its Outdoor Americas division into a real estate investment trust.

Earlier in the day, U.S. economic data showed consumer prices were flat in December, pointing to muted inflation pressures that should give the Federal Reserve room to prop up the economy by staying on its ultra-easy monetary policy path.

Other data showed U.S. homebuilder confidence in the market for single family homes held steady near seven year highs in January, suggesting the outlook for the housing market remained upbeat.

Volume was roughly 5.6 billion shares traded on the New York Stock Exchange, the Nasdaq and the NYSE MKT, compared with the 2012 average daily closing volume of about 6.45 billion.

Decliners outpaced advancers on

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