Rising Attacks on Ukrainian Black Sea Ports Threaten Grain Export Capacity and Global Supply

After 323 past bullish geopolitics events, CORN moved a median +0.5% over 5 sessions (57% higher; middle half -1.5% to +2.9%), and +0.9% over 20.

• Aug 1, 2026Ukraine's Black Sea ports lose a third of grain export capacity, farmers' union says-0.1%
• Oct 1, 2026War Throttles Black Sea Grain Exports, Threatening Food Supplies-1.2%
• Jan 1, 2026Russian attacks on Ukrainian ports cause drop in food exports+0.6%
• Sep 7, 2026Ukrainian grain rail exports collapse 95% to Black Sea ports in August 2026 · h.ua+0.4%
• Feb 24, 2020Surge in Black Sea attacks adds to strain on global commodity flows | eKathimerini.com-2.5%

After 361 past bullish geopolitics events, WHEAT moved a median +0.7% over 5 sessions (58% higher; middle half -1.4% to +3.7%), and +1.3% over 20.

• Jul 31, 2026EXCLUSIVE: Russian grain lobby says Kyiv's attacks threaten Black Sea exports, global food security | Reuters-1.0%
• Aug 20, 2026Attacks on Black Sea ships and ports drive sharp drop in grain exports-1.3%
• Aug 1, 2026Ukraine's Black Sea ports lose a third of grain export capacity, farmers' union says-0.8%
• Oct 1, 2026War Throttles Black Sea Grain Exports, Threatening Food Supplies-2.9%
• Jan 1, 2026Russian attacks on Ukrainian ports cause drop in food exports+0.7%

Not enough comparable past events yet for a historical read.