British Pound / Japanese Yen: a 3.5σ fall on 30 July 2026
Recorded 7 October 2026On 30 July 2026 British Pound / Japanese Yen fell 1.22% close to close, 3.5 times its typical daily move of 0.35% over the 20 sessions before it: larger than every one of the 20 sessions on record before it. 49 other instruments of the 199 measured that day moved 2σ or more.
The day
Daily closes, as recorded the night after
- Move
- −1.22%
- Size
- −3.5σ
- Typical day before it
- 0.35%
- Close
- 215.61
- Previous close, 29 July 2026
- 218.28
- Since, to 23 October 2026
- −2.87%
British Pound / Japanese Yen, the 30 sessions to 30 July 2026
Daily closes; the last point is the quake
Show values
| Point | GBP/JPY |
|---|---|
| 18 Jun 2026 | 212.9 |
| 21 Jun 2026 | 213.2 |
| 22 Jun 2026 | 214.0 |
| 23 Jun 2026 | 213.3 |
| 24 Jun 2026 | 212.9 |
| 25 Jun 2026 | 213.4 |
| 28 Jun 2026 | 213.5 |
| 29 Jun 2026 | 214.6 |
| 30 Jun 2026 | 215.5 |
| 1 Jul 2026 | 215.8 |
| 2 Jul 2026 | 215.3 |
| 5 Jul 2026 | 215.6 |
| 6 Jul 2026 | 217.1 |
| 7 Jul 2026 | 216.7 |
| 8 Jul 2026 | 217.7 |
| 9 Jul 2026 | 217.8 |
| 12 Jul 2026 | 216.7 |
| 13 Jul 2026 | 216.8 |
| 14 Jul 2026 | 217.3 |
| 15 Jul 2026 | 219.4 |
| 16 Jul 2026 | 218.8 |
| 19 Jul 2026 | 218.5 |
| 20 Jul 2026 | 218.2 |
| 21 Jul 2026 | 218.3 |
| 22 Jul 2026 | 218.1 |
| 23 Jul 2026 | 218.1 |
| 26 Jul 2026 | 218.4 |
| 27 Jul 2026 | 217.6 |
| 28 Jul 2026 | 217.7 |
| 29 Jul 2026 | 218.3 |
| 30 Jul 2026 | 215.6 |
The same day
Other quakes on 30 July 2026
| Instrument | Move | Size |
|---|---|---|
| Microsoft MSFT | +15.51% | +9.4σ |
| US Dollar / Japanese Yen USD/JPY | −1.91% | −6.9σ |
| Canadian Dollar / Japanese Yen CAD/JPY | −1.74% | −6.0σ |
| Euro / Japanese Yen EUR/JPY | −1.43% | −5.9σ |
| US Dollar / Turkish Lira USD/TRY | +0.28% | +4.4σ |
| US Dollar / Colombian Peso USD/COP | −2.46% | −4.1σ |
| Uniswap UNI | +11.21% | +3.8σ |
| BNB BNB | +3.61% | +3.6σ |
| Riot Platforms RIOT | +21.27% | +3.4σ |
| US Dollar / Singapore Dollar USD/SGD | −0.52% | −3.3σ |
| Swiss Franc / Japanese Yen CHF/JPY | −0.99% | −3.2σ |
| Micron Technology MU | +18.36% | +3.2σ |
| MARA Holdings MARA | +17.61% | +3.1σ |
| US Dollar / South Korean Won USD/KRW | −1.50% | −3.1σ |
British Pound / Japanese Yen's other quakes
On record, newest first
- 3 September 2026: −1.72%, −4.4σ
- 2 September 2026: −1.00%, −3.3σ
- 2 August 2026: −1.40%, −3.1σ
- 15 July 2026: +0.97%, +3.0σ
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 / Japanese Yen'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 / Japanese Yen'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.