If you invested $1000 in Merck & Co., Inc. (MRK) 10 years ago, it would be worth $3,330.19 as of August 29, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $2,248.75, while $1000 invested 1 year ago would be worth $1,808.27. This corresponds to total returns of 233.02%, 124.87%, 80.83%, respectively, with annualized returns of 12.78%, 17.59%, 80.83%.
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 |
|---|---|---|---|---|---|---|
| August 28, 2026 | 146.72 | 148.35 | 148.35 | 149.01 | 145.75 | 8.06M |
| August 27, 2026 | 149.53 | 149.54 | 149.54 | 152.08 | 149.02 | 8.5M |
| August 26, 2026 | 154.35 | 153.15 | 153.15 | 155.18 | 152.61 | 8.58M |
| August 25, 2026 | 151 | 156.43 | 156.43 | 156.92 | 150.66 | 13.71M |
| August 24, 2026 | 150.72 | 150.69 | 150.69 | 151.52 | 149.14 | 14.66M |
| August 21, 2026 | 149.12 | 152.55 | 152.55 | 154.49 | 148.59 | 15.87M |
| August 20, 2026 | 150.78 | 149.25 | 149.25 | 152.51 | 148.52 | 15.64M |
| August 19, 2026 | 146.94 | 152.22 | 152.22 | 153.47 | 144.9 | 32.39M |
| August 18, 2026 | 137.24 | 135.18 | 135.18 | 137.98 | 134.88 | 9.93M |
| August 17, 2026 | 134.95 | 135.97 | 135.97 | 137.17 | 134.55 | 8.46M |
| August 14, 2026 | 134.43 | 135.84 | 135.84 | 135.97 | 133.4 | 6.48M |
| August 13, 2026 | 133.86 | 135.55 | 135.55 | 135.68 | 133.06 | 8.87M |
| August 12, 2026 | 130.25 | 132.93 | 132.93 | 134.06 | 128.91 | 9.89M |
| August 11, 2026 | 129.93 | 130.45 | 130.45 | 132.84 | 129.7 | 6.12M |
| August 10, 2026 | 128.29 | 130.9 | 130.9 | 130.98 | 128.24 | 5.2M |
| August 07, 2026 | 127.84 | 128.57 | 128.57 | 128.75 | 126.68 | 6.42M |
| August 06, 2026 | 130.96 | 128.37 | 128.37 | 131.08 | 127.8 | 7.05M |
| August 05, 2026 | 129.41 | 128.32 | 128.32 | 131.07 | 127.56 | 9.5M |
| August 04, 2026 | 128.46 | 128.04 | 128.04 | 129.99 | 126.22 | 10.5M |
| August 03, 2026 | 129.87 | 127.72 | 127.72 | 131.47 | 126.72 | 10.82M |
| July 31, 2026 | 128.92 | 130.22 | 130.22 | 131.04 | 128.14 | 7M |
| July 30, 2026 | 128.2 | 129.79 | 129.79 | 130.21 | 127.25 | 6.84M |
| July 29, 2026 | 132.37 | 130.39 | 130.39 | 132.69 | 129.65 | 6.44M |
| July 28, 2026 | 132.88 | 131.82 | 131.82 | 135.05 | 131.14 | 10.09M |
| July 27, 2026 | 131.01 | 130.76 | 130.76 | 132.53 | 130.45 | 5.97M |
| July 23, 2026 | 127.82 | 130.48 | 130.48 | 131.04 | 127.82 | 8.53M |
| July 22, 2026 | 127.32 | 127.52 | 127.52 | 128.82 | 126.62 | 7.78M |
| July 21, 2026 | 124.8 | 126.26 | 126.26 | 126.77 | 124.1 | 7.33M |
| July 20, 2026 | 127.29 | 124.41 | 124.41 | 127.89 | 124.22 | 7.68M |
| 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 |