If you invested $1000 in Merck & Co., Inc. (MRK) 10 years ago, it would be worth $3,069.33 as of July 20, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $1,942.12, while $1000 invested 1 year ago would be worth $1,649.42. This corresponds to total returns of 206.93%, 94.21%, 64.94%, respectively, with annualized returns of 11.86%, 14.19%, 64.94%.
Custom investment amounts or purchase dates can also be explored using the Stoculator calculator. Past performance does not guarantee future results.
Date Range:
| Date | Open | Close | Adj Close | High | Low | Volume |
|---|---|---|---|---|---|---|
| July 17, 2026 | 128.45 | 127.5 | 127.5 | 131.74 | 127.03 | 12.75M |
| July 16, 2026 | 124.33 | 127.63 | 127.63 | 128.93 | 124 | 12.4M |
| July 15, 2026 | 124.25 | 123.61 | 123.61 | 124.9 | 122.75 | 9.05M |
| July 14, 2026 | 123.3 | 120.78 | 120.78 | 123.66 | 120.16 | 9.28M |
| July 13, 2026 | 123.58 | 124.03 | 124.03 | 124.74 | 122.44 | 4.95M |
| July 10, 2026 | 125.12 | 123.54 | 123.54 | 125.56 | 122.9 | 8.15M |
| July 09, 2026 | 125.48 | 125.07 | 125.07 | 128.07 | 124.45 | 6.83M |
| July 08, 2026 | 128.34 | 125.99 | 125.99 | 128.99 | 125.14 | 7.84M |
| July 07, 2026 | 128.77 | 128.86 | 128.86 | 129.69 | 127.89 | 8.73M |
| July 06, 2026 | 129.31 | 126.78 | 126.78 | 130 | 125.62 | 9.18M |
| July 02, 2026 | 126.18 | 129.56 | 129.56 | 129.61 | 125.99 | 7.54M |
| July 01, 2026 | 128.01 | 125.37 | 125.37 | 128.42 | 124.71 | 10.1M |
| June 30, 2026 | 129.22 | 128.5 | 128.5 | 130.29 | 126.68 | 11.8M |
| June 29, 2026 | 127.65 | 129.38 | 129.38 | 129.97 | 126.74 | 9.55M |
| June 26, 2026 | 125.83 | 128.38 | 128.38 | 128.78 | 125.83 | 18.47M |
| June 25, 2026 | 121.63 | 125.45 | 125.45 | 125.96 | 121 | 13.31M |
| June 24, 2026 | 120.9 | 120.65 | 120.65 | 121.81 | 119.51 | 9.65M |
| June 23, 2026 | 116.53 | 119.6 | 119.6 | 119.8 | 116.53 | 9.73M |
| June 22, 2026 | 113.97 | 115.46 | 115.46 | 115.63 | 113 | 10.47M |
| June 18, 2026 | 114.64 | 113.87 | 113.87 | 114.94 | 111.57 | 28.91M |
| June 17, 2026 | 114.86 | 115.49 | 115.49 | 115.99 | 114.02 | 9.97M |
| June 16, 2026 | 115.88 | 115.17 | 115.17 | 115.9 | 113.57 | 10.65M |
| June 15, 2026 | 118.71 | 114.9 | 114.9 | 118.95 | 114.87 | 15.06M |
| June 12, 2026 | 121.5 | 119.05 | 119.05 | 121.9 | 118.83 | 10.83M |
| June 11, 2026 | 120.04 | 120.76 | 120.76 | 122.71 | 119.95 | 13.14M |
| June 10, 2026 | 119.78 | 119.09 | 119.09 | 120.04 | 117.26 | 10.26M |
| June 09, 2026 | 120.03 | 119.6 | 119.6 | 120.5 | 118 | 9.6M |
| June 08, 2026 | 120.85 | 119.52 | 119.52 | 122.6 | 118.69 | 11.9M |
| June 05, 2026 | 120.94 | 120.79 | 120.79 | 123.46 | 120.36 | 14.36M |
| June 04, 2026 | 117.16 | 120.26 | 120.26 | 120.55 | 117.09 | 15.64M |
| June 03, 2026 | 115.44 | 114.8 | 114.8 | 117.33 | 114.73 | 6.05M |
| June 02, 2026 | 114.5 | 115.65 | 115.65 | 116.78 | 114.5 | 8.31M |
| June 01, 2026 | 117.55 | 115.17 | 115.17 | 117.96 | 114.36 | 9.4M |
| May 29, 2026 | 119.65 | 118.72 | 118.72 | 120.67 | 118.19 | 15.02M |
| May 28, 2026 | 120.26 | 119.89 | 119.89 | 121.5 | 119.36 | 9.26M |
| May 27, 2026 | 119.82 | 120.23 | 120.23 | 122.4 | 119.78 | 5.55M |
| May 26, 2026 | 122.9 | 119.76 | 119.76 | 123.13 | 119.41 | 8.01M |
| May 22, 2026 | 120.55 | 122.41 | 122.41 | 122.66 | 120.08 | 14.75M |
| May 21, 2026 | 112.79 | 115.88 | 115.88 | 115.98 | 112.09 | 7.3M |
| May 20, 2026 | 114.63 | 112.99 | 112.99 | 114.95 | 112.9 | 5.26M |
| May 19, 2026 | 112.56 | 114.27 | 114.27 | 115.1 | 112.13 | 5.21M |
| May 18, 2026 | 111.43 | 112.56 | 112.56 | 112.89 | 110.97 | 7.88M |
| May 15, 2026 | 113.9 | 111.38 | 111.38 | 113.93 | 110.94 | 9.78M |
| May 14, 2026 | 113.63 | 113.41 | 113.41 | 113.9 | 112.57 | 5.23M |
| May 13, 2026 | 112.25 | 113.47 | 113.47 | 114.07 | 112.05 | 4.88M |
| May 12, 2026 | 111.5 | 112.38 | 112.38 | 113.68 | 111.39 | 4.74M |
| May 11, 2026 | 112.15 | 111.28 | 111.28 | 113.68 | 111.01 | 7.75M |
| May 08, 2026 | 112.38 | 111.38 | 111.38 | 113.01 | 111.18 | 5.66M |
| May 07, 2026 | 113.51 | 112.3 | 112.3 | 113.75 | 111.1 | 6.81M |
| May 06, 2026 | 113.15 | 113.56 | 113.56 | 114.49 | 112.74 | 4.7M |
| May 05, 2026 | 113.67 | 113.15 | 113.15 | 114.07 | 112.83 | 7.91M |
| May 04, 2026 | 111.41 | 113.11 | 113.11 | 114.62 | 110.75 | 7.53M |
| May 01, 2026 | 112.33 | 112.16 | 112.16 | 114.54 | 111.88 | 11.95M |
| April 30, 2026 | 109.34 | 109.18 | 109.18 | 112.24 | 108.63 | 17.08M |
| April 29, 2026 | 108.55 | 110.95 | 110.95 | 111.23 | 107.9 | 9.76M |
| April 28, 2026 | 111.52 | 110.03 | 110.03 | 111.91 | 109.71 | 7.15M |
| April 27, 2026 | 111.22 | 110.23 | 110.23 | 112.75 | 110.14 | 9.03M |
| April 24, 2026 | 113.74 | 111.9 | 111.9 | 114.03 | 111.5 | 6.98M |
| April 23, 2026 | 113.37 | 114.62 | 114.62 | 115.02 | 113.1 | 6.77M |
| April 22, 2026 | 112.61 | 112.89 | 112.89 | 113.51 | 111.54 | 8.04M |