British Pound / Swiss Franc: a 4.2σ fall on 1 October 2026
Recorded 7 October 2026On 1 October 2026 British Pound / Swiss Franc fell 1.11% close to close, 4.2 times its typical daily move of 0.26% over the 20 sessions before it: its largest move since 19 August 2026. 32 other instruments of the 198 measured that day moved 2σ or more.
The day
Daily closes, as recorded the night after
- Move
- −1.11%
- Size
- −4.2σ
- Typical day before it
- 0.26%
- Close
- 1.096
- Previous close, 30 September 2026
- 1.1083
- Since, to 23 October 2026
- +0.20%
British Pound / Swiss Franc, the 30 sessions to 1 October 2026
Daily closes; the last point is the quake
Show values
| Point | GBP/CHF |
|---|---|
| 20 Aug 2026 | 1.0908 |
| 23 Aug 2026 | 1.0931 |
| 24 Aug 2026 | 1.0937 |
| 25 Aug 2026 | 1.0941 |
| 26 Aug 2026 | 1.0943 |
| 27 Aug 2026 | 1.0927 |
| 30 Aug 2026 | 1.0951 |
| 31 Aug 2026 | 1.0951 |
| 1 Sep 2026 | 1.0970 |
| 2 Sep 2026 | 1.0961 |
| 3 Sep 2026 | 1.0924 |
| 6 Sep 2026 | 1.0948 |
| 7 Sep 2026 | 1.0958 |
| 8 Sep 2026 | 1.0956 |
| 9 Sep 2026 | 1.0974 |
| 10 Sep 2026 | 1.0985 |
| 13 Sep 2026 | 1.1044 |
| 14 Sep 2026 | 1.1032 |
| 15 Sep 2026 | 1.1034 |
| 16 Sep 2026 | 1.1044 |
| 17 Sep 2026 | 1.1018 |
| 20 Sep 2026 | 1.1014 |
| 21 Sep 2026 | 1.0972 |
| 22 Sep 2026 | 1.0951 |
| 23 Sep 2026 | 1.0923 |
| 24 Sep 2026 | 1.0940 |
| 27 Sep 2026 | 1.0975 |
| 28 Sep 2026 | 1.1025 |
| 29 Sep 2026 | 1.1036 |
| 30 Sep 2026 | 1.1083 |
| 1 Oct 2026 | 1.0960 |
The same day
Other quakes on 1 October 2026
| Instrument | Move | Size |
|---|---|---|
| Euro / Swiss Franc EUR/CHF | −1.31% | −6.4σ |
| Euro / Canadian Dollar EUR/CAD | −0.80% | −5.1σ |
| Sugar No. 11 SUGAR | +7.43% | +4.6σ |
| New Zealand Dollar / Swiss Franc NZD/CHF | −1.20% | −4.1σ |
| ASX 200 ASX200 | −1.99% | −3.6σ |
| US Dollar / South African Rand USD/ZAR | +1.70% | +3.4σ |
| US Dollar / Danish Krone USD/DKK | +0.70% | +3.1σ |
| Australian Dollar / Swiss Franc AUD/CHF | −0.85% | −3.0σ |
| Euro / US Dollar EUR/USD | −0.68% | −3.0σ |
British Pound / Swiss Franc's other quakes
On record, newest first
- 19 August 2026: −1.32%, −5.7σ
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 / Swiss Franc'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 / Swiss Franc'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.