Tech stocks help offset losses for Chipotle, IBM, American Airlines
                                
                                
                                    (Newser) -
                                    Gains for several big tech companies helped nudge US indexes to more records Thursday even as most stocks in the market fell. 
 -  The S&P 500 rose 4.44 points, or 0.1%, to 6,363.65, to another all-time high.
-  The Dow Jones Industrial Average fell 316.38 points,
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