A Commonwealth Bank of Australia economist estimates global wheat prices could rise 18–24% in 2027 if Ukrainian and Russian Black Sea ports remain closed to grain exports. If the closure persists, the two countries could retain only about 60% of their export capacity as of July 2026; reopening in early 2027 could keep prices near current levels.
The outlook also cites an expected 13% decline in the combined 2026 harvest of major exporters outside the Black Sea region.
A prolonged shutdown would constrain a major export corridor while other suppliers have less capacity to fill the gap, tightening global wheat availability and lifting prices. Reopening the ports would ease that risk and limit the potential price increase.
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.
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.