# Corn and Soybeans Fall on US Weather, Pause in US-Iran Strikes - Bloomberg

> Corn and soybean futures fell sharply after the US paused nearly two weeks of daily strikes against Iran, and crude oil dropped. Corn fell as much as 3.3%, its largest intraday decline since mid-January, and soybeans fell as much as 3.4%. Soyoil also slipped.

- Date: 2026-07-27 · published 2026-07-27T12:00:00.000Z
- Category: geopolitics · region US · magnitude medium
- Page: https://feedsoft.ai/events/8278-corn-and-soybeans-fall-on-us-weather-pause-in-us-iran-strikes-bloomberg
- Commodities: [Corn](https://feedsoft.ai/c/CORN.md), [Soybeans](https://feedsoft.ai/c/SOY.md), [Soybean Oil](https://feedsoft.ai/c/SBO.md), [Crude Oil (WTI)](https://feedsoft.ai/c/WTI.md)

## Why it matters

Corn, soybeans and soyoil are key biofuel feedstocks, so they tend to track crude oil. Lower energy prices reduce biofuel margin support and pressure grain and oilseed prices.

## Read by commodity

- SBO: bearish ▼
- SOY: bearish ▼
- WTI: bearish ▼
- CORN: bearish ▼

## Linked price moves

| Commodity | Date | Window | Change % | z-score | Why linked |
| --- | --- | --- | --- | --- | --- |
| SBO | 2026-07-27 | 1 | -4.7% | -3.9 | The US pause in strikes on Iran pushed crude oil lower, cutting energy and biofuel-linked demand for soyoil, and it triggered a broad sell-off in soybean complex futures on the same day. |
| CORN | 2026-07-27 | 1 | -2.8% | -3.7 | US pause in strikes on Iran sent crude sharply lower, and corn had its largest intraday drop since January as energy/ethanol-linked risk premium and sentiment unwound. |
| SBO | 2026-07-31 | 5 | -7.6% | -2.9 | The US pause in Iran strikes pushed crude lower and triggered a broad sell-off in soybeans and corn, with soyoil also slipping on energy-driven sentiment. |

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| CORN | 2026-06-16 | [Corn, Wheat And Soy All See Prices Drop On Prospect Of US-Iran Deal \| ESM Magazine](https://feedsoft.ai/events/18835-corn-wheat-and-soy-all-see-prices-drop-on-prospect-of-us-iran-deal-esm-magazine.md) | -0.8% | +1.7% |
| CORN | 2026-07-27 | [Soybeans and corn fall more than 2% as oil drops, wheat also down \| ZAWYA](https://feedsoft.ai/events/8284-soybeans-and-corn-fall-more-than-2-as-oil-drops-wheat-also-down-zawya.md) | -4.8% | +0.5% |
| CORN | 2026-04-01 | [Grain, Oilseed Prices Fall as Traders Look for End to Iran War - Bloomberg](https://feedsoft.ai/events/19762-grain-oilseed-prices-fall-as-traders-look-for-end-to-iran-war-bloomberg.md) | -1.7% | +1.5% |
| CORN | 2026-08-04 | [CBOT grains, soybeans fall as oil drops on Iran hopes \| Stock Market News](https://feedsoft.ai/events/12807-cbot-grains-soybeans-fall-as-oil-drops-on-iran-hopes-stock-market-news.md) | -1.3% | +10.1% |
| CORN | 2017-01-20 | [Boeing and beans on China's blacklist if US trade tensions worsen](https://feedsoft.ai/events/72862-boeing-and-beans-on-china-s-blacklist-if-us-trade-tensions-worsen.md) | +0.4% | +1.9% |
| SOY | 2026-06-16 | [Corn, Wheat And Soy All See Prices Drop On Prospect Of US-Iran Deal \| ESM Magazine](https://feedsoft.ai/events/18835-corn-wheat-and-soy-all-see-prices-drop-on-prospect-of-us-iran-deal-esm-magazine.md) | -0.2% | +7.4% |
| SOY | 2026-07-27 | [Soybeans and corn fall more than 2% as oil drops, wheat also down \| ZAWYA](https://feedsoft.ai/events/8284-soybeans-and-corn-fall-more-than-2-as-oil-drops-wheat-also-down-zawya.md) | -6.1% | -1.8% |
| SOY | 2026-04-01 | [Grain, Oilseed Prices Fall as Traders Look for End to Iran War - Bloomberg](https://feedsoft.ai/events/19762-grain-oilseed-prices-fall-as-traders-look-for-end-to-iran-war-bloomberg.md) | -0.8% | +1.0% |

## Sources

- bloomberg.com: https://www.bloomberg.com/news/articles/2026-07-27/soybean-oil-drops-most-in-month-after-us-halts-strikes-on-iran

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