STOCKS
MRK
Merck & Co.
How often this market makes each size of move, graded against its own history · to 31 August 2026
Daily moves
| Reading | Times | Share | |
|---|---|---|---|
| Max | 3 | 1.1% | |
| Very High | 1 | 0.4% | |
| High | 3 | 1.1% | |
| Moderate | 4 | 1.5% | |
| Low | 81 | 31.0% | |
| Very Low | 169 | 64.8% |
A Very High or Max day shows up about 2 times a year for MRK — 4 times in the history we hold. The most recent was 19 Aug 2026, when it rose 12.6%.
Biggest moves on record
| When | Move | Reading |
|---|---|---|
| 19 Aug 2026 | +12.6% | Very High |
| 1 Oct 2025 | +7.4% | Max |
| 30 Sep 2025 | +6.8% | Max |
| 22 May 2026 | +5.6% | Low |
| 25 Nov 2025 | +5.2% | Low |