MRK ▼ -0.6% - Merck & Co., Inc. $MRK MERCK & CO INC : GUGGENHEIM RAISES TARGET PRICE TO $170 FROM $146 Merck shares fell 0.6% despite Guggenheim Securities raising its price target on the stock to $170 from $146, suggesting the market may have already priced in positive sentiment or investors are focused on near-term headwinds that outweigh the analyst upgrade. 08-SEP-2026 06:19 AM ET