Euronext vs CBOT Wheat: How Chicago Sets Your Price
The wheat price at Rouen depends in part on a contract quoted in Chicago in dollars. Understanding that correlation and the role of the dollar helps you anticipate moves on Euronext.
A drought in Kansas lifts wheat in Chicago. A few minutes later, Euronext wheat rises too sometimes by as much, sometimes less, sometimes more. Why? Because grain markets are global, and French wheat competes directly with American, Russian and Australian wheat on export markets.
The price transmission chain
The price per tonne you receive on farm is the result of a cascade of influences:
CBOT Chicago ZW (cents/bushel) EUR/USD rate Conversion to €/t Euronext EBM €/t (Rouen) Ex-farm price EBM − local basis
The dollar effect: the invisible multiplier
CBOT wheat is quoted in dollars. Euronext is quoted in euros. That conversion creates a leverage effect on the French price:
ScenarioCBOT ($/bushel)EUR/USDImpact on Euronext (approximate)Strong dollar (USD up)flat1.05 → 1.00Euronext rises (~+5% at constant volume)Weak dollar (USD down)flat1.05 → 1.15Euronext falls (~−9%)CBOT up + strong dollar+10%1.10 → 1.00Double bullish effect on EuronextCBOT up + weak dollar+10%1.00 → 1.15Rise dampened or cancelled out
When the two markets diverge
The CBOT/Euronext correlation is strong but imperfect. Divergences appear when a factor hits one market specifically:
Black Sea: a Ukrainian crisis weighs more on Euronext (a direct competitor) than on CBOT
US drought: strong impact on CBOT, moderate on Euronext if other basins make up the difference
Milling quality: a poor French season lifts EBM independently of Chicago
Key point: following Euronext alone is like watching the dashboard without watching the road. Build the direction of the dollar and of CBOT into your market monitoring those two indicators often give you 24 to 48 hours' notice on EBM moves.
To go further, Chicago's CFTC COT report (covered in the next article) gives you the exact positioning of US funds on wheat a leading signal for the big global trends.