# Economic Weekly 35/2026, September 4, 2026 – Polish Economic Institute

> Polish Economic Institute reports Ukraine's wheat exports fell about 60% year on year in August, and Russia's fell about 56%, after attacks on Black Sea port infrastructure and ships. CBOT wheat futures rose about 30% year on year in August to their highest levels in over three years.

- Date: 2026-09-04 · published 2026-09-04T12:00:00.000Z
- Category: geopolitics · region Black Sea · magnitude medium
- Page: https://feedsoft.ai/events/14086-economic-weekly-35-2026-september-4-2026-polish-economic-institute
- Commodities: [Wheat (SRW)](https://feedsoft.ai/c/WHEAT.md), [Corn](https://feedsoft.ai/c/CORN.md)

## Why it matters

Russia and Ukraine together supply roughly a third of global wheat exports, so their export losses transmit quickly into world wheat prices and feed grain costs.

## Read by commodity

- CORN: bullish ▲
- WHEAT: bullish ▲

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| WHEAT | 2026-09-01 | [Arable Market Report – 1 September 2026 \| AHDB](https://feedsoft.ai/events/12756-arable-market-report-1-september-2026-ahdb.md) | +0.8% | +0.1% |
| WHEAT | 2024-01-02 | [Weekly Ag Markets Update - 01/02/2024 - Market InsightsMarket Insights](https://feedsoft.ai/events/6739-weekly-ag-markets-update-01-02-2024-market-insightsmarket-insights.md) | -2.8% | -2.7% |
| WHEAT | 2019-09-17 | [Daily Market Wire 17 September 2019 - Grain Central](https://feedsoft.ai/events/9891-daily-market-wire-17-september-2019-grain-central.md) | +2.4% | +2.8% |
| WHEAT | 2021-12-16 | [Weekly Market Update 12/16/2021 - GCC](https://feedsoft.ai/events/8020-weekly-market-update-12-16-2021-gcc.md) | +5.2% | +7.8% |
| WHEAT | 2026-04-30 | [World Bank Warns Fertilizer Prices Could Rise More Than 30% in 2026 - Ecofin Agency](https://feedsoft.ai/events/7256-world-bank-warns-fertilizer-prices-could-rise-more-than-30-in-2026-ecofin-agency.md) | -3.2% | -0.6% |
| CORN | 2019-09-17 | [Daily Market Wire 17 September 2019 - Grain Central](https://feedsoft.ai/events/9891-daily-market-wire-17-september-2019-grain-central.md) | +1.7% | +4.7% |
| CORN | 2021-12-16 | [Weekly Market Update 12/16/2021 - GCC](https://feedsoft.ai/events/8020-weekly-market-update-12-16-2021-gcc.md) | -2.7% | +0.4% |
| CORN | 2025-01-20 | [China’s yuan rises to over two-week high on positive US-China talk, better economic data - Markets - Business Recorder](https://feedsoft.ai/events/9601-china-s-yuan-rises-to-over-two-week-high-on-positive-us-china-talk-better.md) | +0.3% | +2.9% |

## Sources

- pie.net.pl: https://pie.net.pl/en/economic-weekly-35-2026-september-4-2026/

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