CBOT wheat reached three-year highs after Russia rejected a Black Sea grain deal, according to a Reuters report published on Sept. 1.
The market close showed the wider index moving modestly while grain prices strengthened.
Failure of a grain deal keeps Black Sea supply risk in the price, supporting wheat and feed-grain values for buyers. The move is driven by geopolitical supply concerns rather than a change in demand.
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.
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.