Merck & Co., Inc. (MRK)
NYSE: MRK · Real-Time Price · USD
87.49
+0.31 (0.36%)
At close: Oct 24, 2025, 4:00 PM EDT
87.70
+0.21 (0.24%)
After-hours: Oct 24, 2025, 7:45 PM EDT
Merck & Co. Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Oct 24, 2025 | 87.33 | 88.06 | 87.11 | 87.49 | 87.49 | 0.36% | 7,721,237 |
| Oct 23, 2025 | 87.56 | 88.11 | 86.91 | 87.18 | 87.18 | -0.49% | 7,687,450 |
| Oct 22, 2025 | 87.68 | 88.79 | 87.01 | 87.61 | 87.61 | -0.01% | 10,926,343 |
| Oct 21, 2025 | 86.96 | 87.67 | 86.23 | 87.62 | 87.62 | 1.51% | 9,852,403 |
| Oct 20, 2025 | 85.25 | 87.00 | 85.03 | 86.32 | 86.32 | 1.80% | 8,611,782 |
| Oct 17, 2025 | 83.28 | 84.89 | 83.16 | 84.79 | 84.79 | 1.04% | 10,758,923 |
| Oct 16, 2025 | 84.41 | 85.50 | 83.60 | 83.92 | 83.92 | -0.23% | 11,709,057 |
| Oct 15, 2025 | 84.19 | 84.69 | 83.61 | 84.11 | 84.11 | -0.70% | 9,168,705 |
| Oct 14, 2025 | 85.38 | 85.68 | 84.15 | 84.70 | 84.70 | -1.17% | 9,675,036 |
| Oct 13, 2025 | 85.66 | 86.46 | 85.24 | 85.70 | 85.70 | -0.34% | 6,553,942 |
| Oct 10, 2025 | 87.94 | 88.24 | 85.92 | 85.99 | 85.99 | -1.73% | 11,230,694 |
| Oct 9, 2025 | 86.96 | 87.80 | 86.64 | 87.50 | 87.50 | 1.27% | 10,938,196 |
| Oct 8, 2025 | 87.93 | 87.93 | 86.20 | 86.40 | 86.40 | -1.38% | 9,696,200 |
| Oct 7, 2025 | 88.67 | 88.94 | 87.14 | 87.61 | 87.61 | -1.34% | 9,449,085 |
| Oct 6, 2025 | 88.83 | 90.31 | 88.55 | 88.80 | 88.80 | -0.44% | 11,648,298 |
| Oct 3, 2025 | 89.63 | 90.70 | 88.10 | 89.19 | 89.19 | -0.36% | 12,970,576 |
| Oct 2, 2025 | 89.95 | 91.00 | 88.22 | 89.51 | 89.51 | -0.69% | 14,575,377 |
| Oct 1, 2025 | 85.19 | 90.75 | 85.19 | 90.13 | 90.13 | 7.39% | 33,460,875 |
| Sep 30, 2025 | 78.42 | 84.00 | 78.40 | 83.93 | 83.93 | 6.81% | 21,636,633 |
| Sep 29, 2025 | 78.60 | 78.80 | 78.03 | 78.58 | 78.58 | 0.03% | 12,739,025 |
| Sep 26, 2025 | 78.76 | 78.96 | 77.69 | 78.56 | 78.56 | 1.24% | 12,205,423 |
| Sep 25, 2025 | 79.78 | 79.88 | 77.58 | 77.60 | 77.60 | -2.60% | 14,923,785 |
| Sep 24, 2025 | 79.90 | 80.12 | 79.33 | 79.67 | 79.67 | -0.36% | 11,804,176 |
| Sep 23, 2025 | 80.09 | 81.11 | 79.67 | 79.96 | 79.96 | -0.55% | 13,145,294 |
| Sep 22, 2025 | 81.76 | 81.94 | 80.26 | 80.40 | 80.40 | -1.36% | 11,986,448 |
| Sep 19, 2025 | 81.81 | 82.40 | 81.00 | 81.51 | 81.51 | -0.02% | 25,627,814 |
| Sep 18, 2025 | 81.22 | 81.69 | 80.82 | 81.53 | 81.53 | 0.48% | 10,458,876 |
| Sep 17, 2025 | 80.98 | 82.25 | 80.80 | 81.14 | 81.14 | 0.06% | 12,642,100 |
| Sep 16, 2025 | 81.01 | 81.48 | 80.54 | 81.09 | 81.09 | 0.09% | 10,065,901 |
| Sep 15, 2025 | 82.11 | 82.75 | 80.92 | 81.02 | 81.02 | -2.16% | 10,229,754 |
| Sep 12, 2025 | 84.62 | 85.18 | 82.80 | 82.81 | 81.99 | -2.75% | 9,939,451 |
| Sep 11, 2025 | 84.34 | 85.55 | 84.00 | 85.15 | 84.31 | 1.33% | 9,667,174 |
| Sep 10, 2025 | 84.27 | 84.57 | 83.54 | 84.03 | 83.20 | -0.69% | 13,073,268 |
| Sep 9, 2025 | 84.18 | 84.80 | 84.13 | 84.61 | 83.77 | 0.62% | 9,767,468 |
| Sep 8, 2025 | 84.16 | 84.32 | 82.82 | 84.09 | 83.26 | -0.73% | 13,111,165 |
| Sep 5, 2025 | 83.79 | 85.27 | 83.25 | 84.71 | 83.87 | 0.79% | 13,231,140 |
| Sep 4, 2025 | 84.20 | 84.41 | 83.00 | 84.05 | 83.22 | -0.15% | 12,554,844 |
| Sep 3, 2025 | 85.37 | 85.81 | 84.07 | 84.18 | 83.35 | -1.52% | 12,169,436 |
| Sep 2, 2025 | 84.50 | 85.50 | 84.34 | 85.48 | 84.63 | 1.62% | 11,642,713 |
| Aug 29, 2025 | 83.42 | 84.24 | 83.28 | 84.12 | 83.29 | 1.09% | 10,872,919 |
| Aug 28, 2025 | 84.25 | 84.25 | 82.65 | 83.21 | 82.39 | -1.02% | 14,485,303 |
| Aug 27, 2025 | 85.07 | 85.48 | 83.88 | 84.07 | 83.24 | -1.08% | 10,588,086 |
| Aug 26, 2025 | 85.56 | 85.59 | 84.67 | 84.99 | 84.15 | -0.38% | 14,062,690 |
| Aug 25, 2025 | 87.21 | 87.39 | 84.95 | 85.31 | 84.47 | -2.36% | 9,417,659 |
| Aug 22, 2025 | 87.50 | 87.84 | 86.76 | 87.37 | 86.51 | 1.50% | 11,977,434 |
| Aug 21, 2025 | 84.88 | 87.32 | 84.60 | 86.08 | 85.23 | 1.68% | 13,889,005 |
| Aug 20, 2025 | 85.31 | 86.25 | 84.55 | 84.66 | 83.82 | -0.32% | 8,904,738 |
| Aug 19, 2025 | 84.38 | 85.80 | 84.38 | 84.93 | 84.09 | 0.84% | 14,307,713 |
| Aug 18, 2025 | 84.26 | 85.15 | 84.08 | 84.22 | 83.39 | 0.01% | 8,273,573 |
| Aug 15, 2025 | 83.72 | 84.74 | 83.36 | 84.21 | 83.38 | 1.75% | 10,481,384 |