Bovespa: a 8.1σ rise on 5 October 2026
Recorded 7 October 2026On 5 October 2026 Bovespa rose 7.70% close to close, 8.1 times its typical daily move of 0.95% over the 20 sessions before it: larger than every one of the 66 sessions on record before it. 7 other instruments of the 197 measured that day moved 2σ or more.
The day
Daily closes, as recorded the night after
- Move
- +7.70%
- Size
- +8.1σ
- Typical day before it
- 0.95%
- Close
- 206,912
- Previous close, 2 October 2026
- 192,115
- Since, to 22 October 2026
- −1.35%
Bovespa, the 30 sessions to 5 October 2026
Daily closes; the last point is the quake
Show values
| Point | BVSP |
|---|---|
| 21 Aug 2026 | 171,032 |
| 24 Aug 2026 | 171,907 |
| 25 Aug 2026 | 174,577 |
| 26 Aug 2026 | 174,586 |
| 27 Aug 2026 | 175,135 |
| 28 Aug 2026 | 175,665 |
| 31 Aug 2026 | 177,419 |
| 1 Sep 2026 | 179,723 |
| 2 Sep 2026 | 185,205 |
| 3 Sep 2026 | 185,188 |
| 4 Sep 2026 | 185,147 |
| 8 Sep 2026 | 187,367 |
| 9 Sep 2026 | 185,629 |
| 10 Sep 2026 | 188,269 |
| 11 Sep 2026 | 187,207 |
| 14 Sep 2026 | 185,501 |
| 15 Sep 2026 | 186,503 |
| 16 Sep 2026 | 185,548 |
| 17 Sep 2026 | 185,992 |
| 18 Sep 2026 | 185,229 |
| 21 Sep 2026 | 186,596 |
| 22 Sep 2026 | 187,423 |
| 23 Sep 2026 | 185,814 |
| 24 Sep 2026 | 183,966 |
| 25 Sep 2026 | 183,477 |
| 28 Sep 2026 | 182,991 |
| 29 Sep 2026 | 183,828 |
| 30 Sep 2026 | 186,340 |
| 1 Oct 2026 | 187,198 |
| 2 Oct 2026 | 192,115 |
| 5 Oct 2026 | 206,912 |
The same day
Other quakes on 5 October 2026
No other instrument moved 3σ or more that day: this one moved on its own.
Bovespa's other quakes
On record, newest first
- 2 October 2026: +2.63%, +3.4σ
- 10 July 2026: +2.97%, +4.4σ
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.