MERCK & CO. INC. (MRK) Stock Chart

NYSE:MRK • US58933Y1055

123.82 USD
+4.52 (+3.79%)
At close: Feb 27, 2026
123.31 USD
-0.51 (-0.41%)
After Hours: 2/27/2026, 8:20:59 PM
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MERCK & CO. INC. / MRK Daily stock chart