Russian forces are stopping ships from leaving the Black Sea, with reports of 100 to 300 vessels blocked, most carrying grain. A German grain trader says no grain is leaving Ukraine's ports.
Other analysts see no wheat shortage because the EU harvests more than it consumes.
Blocked vessels keep Ukrainian and Russian grain off world markets, which sharply tightens near-term supply and supports prices. The EU surplus limits the rally.
After 361 past bullish geopolitics events, Wheat (SRW) moved a median +0.7% over 5 sessions (58% higher; middle half -1.4% to +3.7%), and +1.3% over 20.
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.
Not enough comparable past events yet for a historical read.
Moves of each commodity's benchmark from the last close before the event. Historical reads pool past events of the same kind; they describe what happened, not what will. Not investment advice.