Black Sea Region
Black Sea risk remained one of the week’s most important regional themes, as security incidents near the Bulgarian and Romanian coasts increased uncertainty around commercial shipping and freight costs. At the same time, low Danube levels added another logistics constraint, while the EU’s growing corn import requirement kept Black Sea trade routes strategically important despite strong global price competition.
Wheat and corn suffered the heaviest weekly losses as harvest pressure, weak export momentum and speculative selling dominated, while exceptional Chinese soybean demand limited the downside in beans.
US grain markets ended the week broadly weaker, with wheat the clear underperformer and corn also posting a sharp decline. Soybeans proved comparatively resilient as Chinese buying accelerated into the end of the week, offsetting part of the pressure from an advancing US harvest and heavy fund liquidation.
Harvest Pressure Regains Control
Dry conditions across much of the Midwest allowed the US harvest to accelerate after earlier delays. Corn harvest had reached 44% by October 18, still behind the five-year average, but forecasts for predominantly dry weather kept expectations for faster fieldwork firmly in place. Soybean harvest reached 64% and was expected to move above 80% by the end of the following weekend.
That improvement in harvest conditions became one of the dominant bearish themes of the week. New-crop supply continued to move into the market just as speculative investors were reducing exposure across the grain complex.
Fund Selling Amplifies the Decline
Speculative liquidation was particularly aggressive in corn. Managed money reduced its corn net-long position from 230,877 contracts earlier in the period to 146,257 contracts by October 20, with both long liquidation and new short interest contributing to the shift.
Wheat positioning also became increasingly bearish. Managed money built its Chicago wheat net-short position to 51,134 contracts, the largest short exposure highlighted during the week. Soybean funds remained net long, but cut that position by 30,555 contracts to 206,936 contracts.
China Makes Soybeans the Relative Outperformer
Soybeans were the only major crop to receive a clearly strengthening demand signal as the week progressed. Weekly 2026/27 export sales reached 2.841 MMT, more than four times the previous week and 170.89% above the same week last year. China accounted for 2.179 MMT of the total.
Private sales also accumulated throughout the week, including 612,000 MT to China on Tuesday and additional purchases later in the week. By Friday, accumulated soybean sales had reached 26.2 MMT, 81% above last year, equal to 57% of the USDA projection and ahead of the five-year average sales pace of 48%.
This demand strength allowed soybeans to outperform corn and wheat despite the advancing harvest and significant speculative selling.
Corn Demand Fails to Offset Harvest Supply
Corn struggled throughout the week as improving harvest conditions met a weak export backdrop. Weekly sales of 1.527 MMT were 36.1% above the previous week, but still 45.9% below the same week last year. By Friday, total export commitments stood at 22.192 MMT, down 34% year on year and equal to only 26% of the USDA export forecast, behind the five-year average sales pace of 37%.
Ethanol production improved during the week, but corn usage remained below the pace needed to reach the USDA forecast. Combined with aggressive fund liquidation and larger South American production expectations, the improvement in weekly export sales was not enough to reverse the bearish tone.
Black Sea Hopes Push Wheat Lower, but Risk Never Disappears
Wheat faced the strongest pressure of the week as expectations for renewed talks involving Russia, the US and Ukraine reduced part of the Black Sea risk premium. That shift drove all three US wheat classes toward fresh multi-month lows.
The market never received a clean signal of normalization, however. By Friday, another merchant vessel had been struck in the Black Sea even as peace discussions remained in focus. The physical risk therefore persisted, but weak US demand and expanding speculative shorts dominated price action.
US wheat export commitments reached 10.77 MMT, down 32% from last year. That represented 53% of the USDA forecast and remained behind the five-year average pace of 63%, reinforcing the demand problem.
South American Supply Adds Pressure
South American developments were another restraint on prices. Brazil’s Center-South soybean planting reached 26%, while Brazilian corn export expectations remained strong. Argentina’s 2026/27 wheat crop estimate was raised to 23.8 MMT, 2.8 MMT above the previous estimate.
The larger supply outlook outside the US limited the ability of weather or export news to generate sustained rallies, particularly in corn and wheat.
Wheat Futures
Dec ’26 CBOT wheat closed Friday at $6.25/bu, up 1/4 cent on the day but down 35 1/2 cents for the week. Dec ’26 Kansas City wheat lost 39 1/2 cents on the week, while Dec ’26 Minneapolis fell 35 cents. Weak export commitments, growing speculative short positions and reduced Black Sea risk premium outweighed renewed shipping concerns late in the week.
Corn Futures
Dec ’26 corn closed at $4.56/bu, down 4 1/2 cents Friday and 18 1/4 cents for the week. Harvest pressure, weak cumulative export commitments and major fund liquidation were the dominant bearish drivers.
Soybean Futures
Nov ’26 soybeans closed at $12.56 1/2/bu, up 3 1/2 cents Friday but down only 4 3/4 cents for the week. Dec ’26 soybean meal lost $11 over the week and Dec ’26 soybean oil fell 30 points. Strong Chinese demand and an export sales pace well ahead of last year made soybeans the clear relative outperformer of the three major crops.