Merck (MRK) volatility flat into upgrade to Buy at Citigroup

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Merck & Co. (NYSE: MRK) Delayed: 135.17 --0 (-0%)
Previous Close $135.17    52 Week High $65.46 
Open $135.17    52 Week Low $47.97 
Day High $135.17    P/E 91.95 
Day Low $135.17    EPS $1.47 
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