Nvidia was another heavy weight on the S&P 500
                                
                                
                                    (Newser) -
                                    Drops for Nvidia and other Big Tech companies were offset by gains in health care, energy, and other sectors on Monday, leaving US stock indexes mixed. 
 -  The S&P 500 rose 9.18 points, or 0.2%, to 5,836 after spending most of the day lower.
  -  The Dow Jones 
 
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