US Dollar Index: a 3.1σ fall on 30 July 2026
Recorded 29 October 2026On 30 July 2026 US Dollar Index fell 0.78% close to close, 3.1 times its typical daily move of 0.25% over the 20 sessions before it: larger than every one of the 3 sessions on record before it. 49 other instruments of the 200 measured that day moved 2σ or more.
The day
Daily closes, as recorded the night after
- Move
- −0.78%
- Size
- −3.1σ
- Typical day before it
- 0.25%
- Close
- 100.01
- Previous close, 29 July 2026
- 100.8
- Since, to 6 November 2026
- +2.29%
US Dollar Index, the 19 sessions to 30 July 2026
Daily closes; the last point is the quake
Show values
| Point | DXY |
|---|---|
| 2 Jul 2026 | 100.86 |
| 6 Jul 2026 | 100.85 |
| 7 Jul 2026 | 101.14 |
| 8 Jul 2026 | 101.05 |
| 9 Jul 2026 | 100.94 |
| 10 Jul 2026 | 100.97 |
| 13 Jul 2026 | 101.28 |
| 14 Jul 2026 | 100.94 |
| 15 Jul 2026 | 100.50 |
| 16 Jul 2026 | 100.73 |
| 17 Jul 2026 | 100.75 |
| 20 Jul 2026 | 100.99 |
| 21 Jul 2026 | 101.18 |
| 22 Jul 2026 | 101.14 |
| 23 Jul 2026 | 101.43 |
| 24 Jul 2026 | 101.47 |
| 27 Jul 2026 | 101.51 |
| 28 Jul 2026 | 101.38 |
| 29 Jul 2026 | 100.80 |
| 30 Jul 2026 | 100.01 |
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 |
| British Pound / Japanese Yen GBP/JPY | −1.22% | −3.5σ |
| 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 |
| Australian Dollar / Japanese Yen AUD/JPY | −0.99% | −3.1σ |
| MARA Holdings MARA | +17.61% | +3.1σ |
| US Dollar / South Korean Won USD/KRW | −1.50% | −3.1σ |
| Taiwan Semiconductor TSM | +7.64% | +3.0σ |
US Dollar Index's other quakes
On record, newest first
- 19 August 2026: −0.82%, −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 US Dollar Index'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 US Dollar Index'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.