INDICES
US500
US S&P 500
How often this market makes each size of move, graded against its own history · to 31 August 2026
Daily moves
| Reading | Times | Share | |
|---|---|---|---|
| Max | 4 | 1.5% | |
| Very High | 2 | 0.8% | |
| High | 5 | 1.9% | |
| Moderate | 10 | 3.8% | |
| Low | 102 | 39.1% | |
| Very Low | 138 | 52.9% |
A Very High or Max day shows up about 3 times a year for US500 — 6 times in the history we hold. The most recent was 8 Apr 2026, when it rose 2.5%.
Biggest moves on record
| When | Move | Reading |
|---|---|---|
| 31 Mar 2026 | +2.9% | Max |
| 10 Oct 2025 | −2.7% | Max |
| 5 Jun 2026 | −2.6% | High |
| 8 Apr 2026 | +2.5% | Very High |
| 20 Jan 2026 | −2.1% | High |