US Dollar / Indonesian Rupiah: a 5.3σ fall on 24 September 2026
Recorded 7 October 2026On 24 September 2026 US Dollar / Indonesian Rupiah fell 1.56% close to close, 5.3 times its typical daily move of 0.29% over the 20 sessions before it: larger than every one of the 60 sessions on record before it. 9 other instruments of the 198 measured that day moved 2σ or more.
The day
Daily closes, as recorded the night after
- Move
- −1.56%
- Size
- −5.3σ
- Typical day before it
- 0.29%
- Close
- 17,559.5
- Previous close, 23 September 2026
- 17,837.3
- Since, to 22 October 2026
- +2.18%
US Dollar / Indonesian Rupiah, the 30 sessions to 24 September 2026
Daily closes; the last point is the quake
Show values
| Point | USD/IDR |
|---|---|
| 13 Aug 2026 | 17,863 |
| 16 Aug 2026 | 17,830 |
| 17 Aug 2026 | 17,824 |
| 18 Aug 2026 | 17,769 |
| 19 Aug 2026 | 17,807 |
| 20 Aug 2026 | 17,755 |
| 23 Aug 2026 | 17,655 |
| 24 Aug 2026 | 17,715 |
| 25 Aug 2026 | 17,695 |
| 26 Aug 2026 | 17,778 |
| 27 Aug 2026 | 17,749 |
| 30 Aug 2026 | 17,749 |
| 31 Aug 2026 | 17,690 |
| 1 Sep 2026 | 17,697 |
| 2 Sep 2026 | 17,723 |
| 3 Sep 2026 | 17,618 |
| 6 Sep 2026 | 17,638 |
| 7 Sep 2026 | 17,664 |
| 8 Sep 2026 | 17,588 |
| 9 Sep 2026 | 17,501 |
| 10 Sep 2026 | 17,588 |
| 13 Sep 2026 | 17,630 |
| 14 Sep 2026 | 17,636 |
| 15 Sep 2026 | 17,665 |
| 16 Sep 2026 | 17,718 |
| 17 Sep 2026 | 17,757 |
| 20 Sep 2026 | 17,806 |
| 21 Sep 2026 | 17,846 |
| 22 Sep 2026 | 17,805 |
| 23 Sep 2026 | 17,837 |
| 24 Sep 2026 | 17,560 |
The same day
Other quakes on 24 September 2026
| Instrument | Move | Size |
|---|---|---|
| Litecoin LTC | +16.31% | +5.2σ |
| Natural Gas NATGAS | +9.06% | +4.6σ |
| BSE Sensex SENSEX | −1.67% | −3.2σ |
US Dollar / Indonesian Rupiah's other quakes
On record, newest first
- 27 September 2026: +2.22%, +4.8σ
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 / Indonesian Rupiah'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 / Indonesian Rupiah'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.