# Column: Jarring U.S. corn stock revisions are making USDA’s numbers unpredictable

> USDA put December 1, 2020 U.S. corn stocks at 11.322 billion bushels, well below the trade average of 11.951 billion and the lowest estimate of 11.59 billion. The column says this was the largest miss in Dec. 1 stocks since at least 2005 and that such revisions make USDA numbers harder to forecast.

- Date: 2021-01-13 · published 2021-01-13T12:00:00.000Z
- Category: report · region US · magnitude medium
- Page: https://feedsoft.ai/events/49090-column-jarring-u-s-corn-stock-revisions-are-making-usda-s-numbers-unpredictable
- Commodities: [Corn](https://feedsoft.ai/c/CORN.md)

## Why it matters

A stocks figure far below expectations means less corn available than the market assumed, which supports corn prices. Greater unpredictability in USDA data also raises risk premiums for feed buyers.

## Read by commodity

- CORN: bullish ▲

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| CORN | 2021-04-09 | [USDA’s WASDE report confirms corn stocks are shrinking](https://feedsoft.ai/events/47547-usda-s-wasde-report-confirms-corn-stocks-are-shrinking.md) | +1.1% | +23.4% |
| CORN | 2024-12-10 | [USDA Reduces U.S. Corn Ending Stocks More Than Expected](https://feedsoft.ai/events/26900-usda-reduces-u-s-corn-ending-stocks-more-than-expected.md) | +1.6% | +2.9% |
| CORN | 2025-06-12 | [USDA Lowers Old and New Crop U.S. Corn Ending Stocks](https://feedsoft.ai/events/24165-usda-lowers-old-and-new-crop-u-s-corn-ending-stocks.md) | +0.0% | -4.5% |
| CORN | 2025-12-09 | [USDA Lowers U.S. Corn Ending Stocks More Than Expected](https://feedsoft.ai/events/21437-usda-lowers-u-s-corn-ending-stocks-more-than-expected.md) | +0.1% | +0.5% |
| CORN | 2020-10-01 | [Column: Corn market blindsided by unusually large U.S. supply revision](https://feedsoft.ai/events/50596-column-corn-market-blindsided-by-unusually-large-u-s-supply-revision.md) | -0.3% | +6.4% |

## Sources

- reuters.com: https://www.reuters.com/article/us-usa-corn-braun/column-jarring-u-s-corn-stock-revisions-are-making-usdas-numbers-unpredictable-idUSKBN29I1NN/

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