British Pound / Australian Dollar: a 3.4σ rise on 30 September 2026
Recorded 7 October 2026On 30 September 2026 British Pound / Australian Dollar rose 0.89% close to close, 3.4 times its typical daily move of 0.26% over the 20 sessions before it: larger than every one of the 64 sessions on record before it. 9 other instruments of the 199 measured that day moved 2σ or more.
The day
Daily closes, as recorded the night after
- Move
- +0.89%
- Size
- +3.4σ
- Typical day before it
- 0.26%
- Close
- 1.9096
- Previous close, 29 September 2026
- 1.8929
- Since, to 23 October 2026
- +0.08%
British Pound / Australian Dollar, the 30 sessions to 30 September 2026
Daily closes; the last point is the quake
Show values
| Point | GBP/AUD |
|---|---|
| 19 Aug 2026 | 1.909 |
| 20 Aug 2026 | 1.916 |
| 23 Aug 2026 | 1.904 |
| 24 Aug 2026 | 1.906 |
| 25 Aug 2026 | 1.904 |
| 26 Aug 2026 | 1.893 |
| 27 Aug 2026 | 1.890 |
| 30 Aug 2026 | 1.891 |
| 31 Aug 2026 | 1.889 |
| 1 Sep 2026 | 1.891 |
| 2 Sep 2026 | 1.882 |
| 3 Sep 2026 | 1.879 |
| 6 Sep 2026 | 1.876 |
| 7 Sep 2026 | 1.876 |
| 8 Sep 2026 | 1.876 |
| 9 Sep 2026 | 1.876 |
| 10 Sep 2026 | 1.888 |
| 13 Sep 2026 | 1.891 |
| 14 Sep 2026 | 1.891 |
| 15 Sep 2026 | 1.891 |
| 16 Sep 2026 | 1.888 |
| 17 Sep 2026 | 1.877 |
| 20 Sep 2026 | 1.880 |
| 21 Sep 2026 | 1.878 |
| 22 Sep 2026 | 1.876 |
| 23 Sep 2026 | 1.882 |
| 24 Sep 2026 | 1.886 |
| 27 Sep 2026 | 1.887 |
| 28 Sep 2026 | 1.889 |
| 29 Sep 2026 | 1.893 |
| 30 Sep 2026 | 1.910 |
The same day
Other quakes on 30 September 2026
No other instrument moved 3σ or more that day: this one moved on its own.
British Pound / Australian Dollar's other quakes
On record, newest first
- 15 October 2026: +1.19%, +3.9σ
How it is measured
The move is the close-to-close return; its size is that return divided by the standard deviation of British Pound / Australian Dollar'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 British Pound / Australian Dollar'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.