Bovespa: a 4.4σ rise on 10 July 2026
Recorded 7 October 2026On 10 July 2026 Bovespa rose 2.97% close to close, 4.4 times its typical daily move of 0.68% over the 20 sessions before it: larger than every one of the 6 sessions on record before it. 4 other instruments of the 147 measured that day moved 2σ or more.
The day
Daily closes, as recorded the night after
- Move
- +2.97%
- Size
- +4.4σ
- Typical day before it
- 0.68%
- Close
- 177,866
- Previous close, 9 July 2026
- 172,742
- Since, to 22 October 2026
- +14.76%
Bovespa, the 22 sessions to 10 July 2026
Daily closes; the last point is the quake
Show values
| Point | BVSP |
|---|---|
| 10 Jun 2026 | 168,619 |
| 11 Jun 2026 | 171,497 |
| 12 Jun 2026 | 171,133 |
| 15 Jun 2026 | 170,415 |
| 16 Jun 2026 | 169,649 |
| 17 Jun 2026 | 168,454 |
| 18 Jun 2026 | 168,278 |
| 19 Jun 2026 | 168,576 |
| 22 Jun 2026 | 170,370 |
| 23 Jun 2026 | 171,259 |
| 24 Jun 2026 | 170,507 |
| 25 Jun 2026 | 171,990 |
| 26 Jun 2026 | 173,295 |
| 29 Jun 2026 | 173,205 |
| 30 Jun 2026 | 172,024 |
| 1 Jul 2026 | 171,689 |
| 2 Jul 2026 | 172,788 |
| 3 Jul 2026 | 174,266 |
| 6 Jul 2026 | 172,448 |
| 7 Jul 2026 | 172,021 |
| 8 Jul 2026 | 170,654 |
| 9 Jul 2026 | 172,742 |
| 10 Jul 2026 | 177,866 |
The same day
Other quakes on 10 July 2026
No other instrument moved 3σ or more that day: this one moved on its own.
Bovespa's other quakes
On record, newest first
- 5 October 2026: +7.70%, +8.1σ
- 2 October 2026: +2.63%, +3.4σ
How it is measured
The move is the close-to-close return; its size is that return divided by the standard deviation of Bovespa's previous 20 daily returns. A quake is 3σ or more. This record was made the night after the day finished trading and has not been changed since. The live chart is on Bovespa's page; the last few months of every market's daily moves are on the volatility terrain, and every quake on record is in the quake archive.