Corn: a 3.1σ rise on 12 August 2026
Recorded 7 October 2026On 12 August 2026 Corn rose 4.64% close to close, 3.1 times its typical daily move of 1.50% over the 20 sessions before it: larger than every one of the 27 sessions on record before it. 4 other instruments of the 200 measured that day moved 2σ or more.
The day
Daily closes, as recorded the night after
- Move
- +4.64%
- Size
- +3.1σ
- Typical day before it
- 1.50%
- Close
- 457
- Previous close, 11 August 2026
- 436.75
- Since, to 23 October 2026
- +0.77%
Corn, the 30 sessions to 12 August 2026
Daily closes; the last point is the quake
Show values
| Point | CORN |
|---|---|
| 30 Jun 2026 | 413 |
| 1 Jul 2026 | 421 |
| 2 Jul 2026 | 425 |
| 6 Jul 2026 | 441 |
| 7 Jul 2026 | 443 |
| 8 Jul 2026 | 435 |
| 9 Jul 2026 | 428 |
| 10 Jul 2026 | 438 |
| 13 Jul 2026 | 438 |
| 14 Jul 2026 | 434 |
| 15 Jul 2026 | 448 |
| 16 Jul 2026 | 442 |
| 17 Jul 2026 | 445 |
| 20 Jul 2026 | 450 |
| 21 Jul 2026 | 453 |
| 22 Jul 2026 | 462 |
| 23 Jul 2026 | 464 |
| 24 Jul 2026 | 464 |
| 27 Jul 2026 | 452 |
| 28 Jul 2026 | 459 |
| 29 Jul 2026 | 449 |
| 30 Jul 2026 | 446 |
| 31 Jul 2026 | 441 |
| 3 Aug 2026 | 449 |
| 4 Aug 2026 | 442 |
| 5 Aug 2026 | 437 |
| 6 Aug 2026 | 439 |
| 7 Aug 2026 | 439 |
| 10 Aug 2026 | 438 |
| 11 Aug 2026 | 437 |
| 12 Aug 2026 | 457 |
The same day
Other quakes on 12 August 2026
No other instrument moved 3σ or more that day: this one moved on its own.
Corn's other quakes
On record, newest first
- 15 September 2026: +4.64%, +4.3σ
How it is measured
The move is the close-to-close return; its size is that return divided by the standard deviation of Corn'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 Corn'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.