
Turkey is negotiating with Russia and Ukraine to open a grain export corridor through the Bosphorus. Ukraine's Black Sea ports have been blocked since the February invasion.
More than 20 million tonnes of grain are stuck in silos there.
A Bosphorus corridor would give a route to release stranded grain, which would soften wheat and corn prices. Any delay keeps the supply shortage in place.
After 80 past bearish geopolitics events, Wheat (SRW) moved a median -0.4% over 5 sessions (44% higher; middle half -1.4% to +1.9%), and -0.5% over 20.
After 87 past bearish geopolitics events, Corn moved a median +0.1% over 5 sessions (51% higher; middle half -1.5% to +2.1%), and +0.3% 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.