US Dollar / Taiwan Dollar: a 3.2σ fall on 21 October 2026
Recorded 23 October 2026On 21 October 2026 US Dollar / Taiwan Dollar fell 0.65% close to close, 3.2 times its typical daily move of 0.20% over the 20 sessions before it: its largest move since 13 October 2026. 10 other instruments of the 199 measured that day moved 2σ or more.
The day
Daily closes, as recorded the night after
- Move
- −0.65%
- Size
- −3.2σ
- Typical day before it
- 0.20%
- Close
- 32.3659
- Previous close, 20 October 2026
- 32.5776
- Since, to 22 October 2026
- +0.71%
US Dollar / Taiwan Dollar, the 30 sessions to 21 October 2026
Daily closes; the last point is the quake
Show values
| Point | USD/TWD |
|---|---|
| 9 Sep 2026 | 31.46 |
| 10 Sep 2026 | 31.64 |
| 13 Sep 2026 | 31.68 |
| 14 Sep 2026 | 31.72 |
| 15 Sep 2026 | 31.77 |
| 16 Sep 2026 | 31.86 |
| 17 Sep 2026 | 31.85 |
| 20 Sep 2026 | 31.81 |
| 21 Sep 2026 | 31.74 |
| 22 Sep 2026 | 31.68 |
| 23 Sep 2026 | 31.79 |
| 24 Sep 2026 | 31.81 |
| 27 Sep 2026 | 31.78 |
| 28 Sep 2026 | 31.78 |
| 29 Sep 2026 | 31.85 |
| 30 Sep 2026 | 31.87 |
| 1 Oct 2026 | 31.89 |
| 4 Oct 2026 | 31.83 |
| 5 Oct 2026 | 31.75 |
| 6 Oct 2026 | 31.78 |
| 7 Oct 2026 | 31.85 |
| 8 Oct 2026 | 31.93 |
| 11 Oct 2026 | 31.92 |
| 12 Oct 2026 | 31.93 |
| 13 Oct 2026 | 32.10 |
| 14 Oct 2026 | 32.19 |
| 15 Oct 2026 | 32.33 |
| 18 Oct 2026 | 32.39 |
| 19 Oct 2026 | 32.48 |
| 20 Oct 2026 | 32.58 |
| 21 Oct 2026 | 32.37 |
The same day
Other quakes on 21 October 2026
| Instrument | Move | Size |
|---|---|---|
| US Dollar / Hong Kong Dollar USD/HKD | −0.03% | −3.3σ |
| Netflix NFLX | −5.31% | −3.1σ |
US Dollar / Taiwan Dollar's other quakes
On record, newest first
- 13 October 2026: +0.56%, +3.2σ
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 / Taiwan 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 US Dollar / Taiwan 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.