# NASS Correction Shrinks the Reported September-to-October Corn Jump by About 12% as Growers Press USDA for Process Fixes

> USDA's NASS corrected its September corn yield estimates for Kansas and Nebraska, raising September production by 28.4 million bushels. The correction shrinks the reported September-to-October jump in national corn production by about 12%.

- Date: 2026-10-29 · published 2026-10-30T10:05:05.429Z
- Category: report · region US · magnitude medium
- Page: https://feedsoft.ai/events/1981-nass-correction-shrinks-the-reported-september-to-october-corn-jump-by-about-12
- Commodities: [Corn](https://feedsoft.ai/c/CORN.md), [DDGS](https://feedsoft.ai/c/DDGS.md)

## Why it matters

A smaller-than-reported October production increase removes some bearish supply signal, which may support corn prices relative to earlier expectations.

## Read by commodity

- CORN: bullish ▲
- DDGS: neutral

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| CORN | 2023-10-13 | [What Was So Bullish About the October USDA Reports? - AgWeb](https://feedsoft.ai/events/33586-what-was-so-bullish-about-the-october-usda-reports-agweb.md) | +0.2% | -3.5% |
| CORN | 2021-10-19 | [In October, the USDA reduced its grain crop and export forecasts for the Black Sea region 19.10.2021 - UkrAgroConsult](https://feedsoft.ai/events/44402-in-october-the-usda-reduced-its-grain-crop-and-export-forecasts-for-the-black.md) | +0.7% | +10.3% |
| CORN | 2022-09-12 | [USDA WASDE report for September \| The Mighty 790 KFGO \| KFGO](https://feedsoft.ai/events/39553-usda-wasde-report-for-september-the-mighty-790-kfgo-kfgo.md) | -1.1% | -1.5% |
| CORN | 2021-10-18 | [Wheat prices rose sharply after the release of the October USDA report](https://feedsoft.ai/events/44584-wheat-prices-rose-sharply-after-the-release-of-the-october-usda-report.md) | +1.5% | +13.0% |
| CORN | 2022-08-12 | [USDA Lowers Corn Production, Increases Soybean Production in August Reports](https://feedsoft.ai/events/39956-usda-lowers-corn-production-increases-soybean-production-in-august-reports.md) | -0.7% | -1.6% |

## Sources

- foodworldnews.com: https://www.foodworldnews.com/articles/81802/20261029/usda-corrects-corn-estimates-production-jump.htm

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Data from Feedsoft AI (https://feedsoft.ai/). For information only; not investment advice.