Argentina's surprise reduction of its wheat export tax from 7.5% to 5.5% arrived at the worst possible moment for a complex already struggling to hold last week's USDA production shock premium — but soybeans and corn finished the week constructively on China demand and strong export commitment pace.
The grain complex closes out the shortened pre-Memorial Day week with a split verdict: soybeans and corn posting meaningful weekly gains while wheat gives back the majority of its post-WASDE surge, with July SRW down 10 1/2 cents on the week and KC HRW down 6 cents. Friday's session itself was orderly — modest losses in wheat, fractional to 2 cent gains in corn and soybeans — as the market consolidates ahead of a three-day weekend, with CBOT closed Monday for Memorial Day and a normal open expected Tuesday.
Argentina Wheat Export Tax Cut: Late Thursday Bearish Surprise
Late Thursday, Argentina cut its wheat export tax from 7.5% to 5.5% — a 200 basis point reduction that directly lowers the cost of Argentine wheat entering global export markets and makes Argentine origin more competitive against US, EU, and Black Sea suppliers. For the wheat complex, the timing is particularly unfavourable: the market was already working through a post-WASDE digestion period after Tuesday's limit-up session last week, and Friday's managed money data confirmed spec funds are actively reducing wheat exposure rather than building fresh longs. A lower Argentine export tax means more Argentine wheat reaching the global market at more competitive prices — a bearish supply-side development that partially offsets the structural tightening from the USDA's 762 mbu new crop US ending stocks figure and the Rosario Exchange's 18–19 MMT Argentina 2026/27 wheat production collapse. The market will need to reconcile these conflicting Argentine signals — a weaker next crop but more competitive current crop exports — heading into the following week.
CFTC Positioning: Wheat Longs Cut Aggressively, Corn and Soy Trim Modestly
Friday's Commitment of Traders update — covering positions as of May 19 — confirmed a meaningful reduction in speculative wheat exposure. Managed money cut 14,224 contracts from their CBOT wheat net long, reducing it to just 4,799 contracts — the lowest net long in several weeks and a sharp reversal from the short position of 19,023 contracts that was squeezed by Tuesday's WASDE limit move the prior week. In KC wheat, spec funds trimmed 7,715 contracts from their net long to 30,075 contracts. The combined wheat position reduction signals that the initial short-covering impulse from Tuesday's USDA shock has run its course, and that conviction among speculative money to hold or add wheat longs at post-WASDE price levels is limited — consistent with the 10 1/2 cent July SRW weekly loss. In corn, managed money trimmed a more modest 6,129 contracts to 293,354 contracts net long — a healthy reduction from last week's extreme 343,925 contract peak that keeps the position at a still-substantial level. Soybean specs cut 7,011 contracts to 207,804 contracts net long, a measured reduction that leaves the complex well-supported from a positioning standpoint.
Corn Export Flash Sales: Two Private Announcements Add Weekend Demand Support
Friday morning brought two USDA private export sale announcements for corn. The first and largest was 493,700 MT to Mexico — split between 225,000 MT for the 2025/26 marketing year and 268,700 MT for 2026/27. The second was 110,000 MT to unknown destinations — 50,000 MT old crop and 60,000 MT new crop. The combined 603,700 MT in private sales on a single Friday morning is a strong demand signal that confirms US corn competitiveness is holding at current price levels, and the significant new crop component of both sales — 328,700 MT in total — is particularly constructive for the 2026/27 balance sheet. Mexico is the largest single buyer of US corn, and a 493,700 MT purchase is a clear signal that Mexico's import programme is fully active at these prices. Combined with the South Korean overnight tender of 203,000 MT of optional origin corn, Friday's demand activity is the most constructive single-session demand development of the week for corn.
Corn Export Commitments at 95% of USDA Target: On Track and Tightening
USDA's Export Sales data shows corn commitments for the 2025/26 marketing year at 79.873 MMT — 26% above the same period last year and now at 95% of the USDA's full-year export projection, running just 1 percentage point behind the 96% average pace. This is the tightest gap to the average pace that corn has achieved all marketing year and comes on the back of last week's 2.125 MMT blowout weekly sales figure. The combination of above-average commitment pace, accelerating private sales, and consistent South Korean tender activity frames corn as the export standout of the three crops heading into the final weeks of the old crop marketing year. July corn closing at $4.63 1/4 — up 7 1/2 cents on the week — and December up 5 1/2 cents are the price expressions of that underlying demand health.
Soybean Meal Flash Sale: Fifth of the Marketing Year, 252,000 MT to Unknown
USDA reported a private export sale of 252,000 MT of soybean meal to unknown destinations on Friday — split between 117,000 MT for 2025/26 and 135,000 MT for 2026/27. This is the fifth such soymeal flash sale of the marketing year, with Italy and unknown destinations as the consistent recipients. The scale of the new crop component — 135,000 MT — is particularly notable as it reflects forward booking of US soymeal at a time when the 2026/27 balance sheet is still being established following last week's WASDE. Soymeal futures closed firm to $3.50 higher on the day, with soy oil up 8 to 37 points — a unified complex gain on Friday that stands in contrast to several prior sessions where the two legs diverged. July soybeans closing at $11.96 1/2, up 19 1/2 cents on the week, and November up 17 cents are consistent with a complex repricing around the tighter-than-expected 310 mbu new crop US ending stocks number from the WASDE.
Soybean Export Commitments: Narrowing the Gap, But Still 18% Below Year-Ago
The weekly Export Sales report shows soybean export commitments for 2025/26 at 39.371 MMT — still 18% below the same period last year and at 95% of USDA's forecast, trailing the 98% average sales pace by 3 percentage points. The gap to year-ago is not closing quickly, and the shortfall is structural rather than transient — it reflects China's reduced US origin purchases across the marketing year. The White House's $17 billion annual agricultural purchase commitment from the Beijing summit should accelerate this pace in the weeks ahead, but the commitment was formalised too recently to have appeared in the data as of this week's cutoff. The fifth soymeal flash sale and the weekly gain of 19 1/2 cents in July soybeans suggest the market is pricing in the expectation of Chinese purchases materialising — the validation will come in the May 22 cutoff Export Sales data due the following Thursday, which will be the first to capture any purchases made in the wake of the White House announcement.
Wheat New Crop Sales Running 51% Below Last Year: The Most Concerning Data Point
Beyond Friday's close, the single most structurally concerning data point for wheat in the weekly export data is the new crop 2026/27 sales pace. Total new crop wheat commitments stand at 2.029 MMT — down 51.45% from the same week last year. This is a dramatic forward demand gap for a crop year that the USDA has already flagged as tight at 762 mbu US ending stocks, and it suggests that elevated post-WASDE price levels are deterring forward buying from importers who are sourcing from competing origins at lower prices. Old crop commitments are more constructive at 25.241 MMT — 16% above last year and at 102% of USDA's forecast — but old crop is in its final days with the marketing year ending shortly. France's crop at 80% good/excellent and Argentina's export tax cut are the two supply-side factors most directly competing with US wheat origin sales — and both argue for continued pressure on the new crop booking pace heading into June.
Three-Day Weekend Ahead: Memorial Day Closure and Tuesday's Open
CBOT will be closed on Monday for Memorial Day, with markets returning to a normal Tuesday open. The three-day weekend provides a natural opportunity for positions to settle after a week defined by China demand optimism on Monday, Iran crude pressure on Wednesday, a blowout corn sales figure on Thursday, and mixed Friday closes. The key variables entering Tuesday will be any weekend developments on the US-Iran peace process — a formal deal announcement would represent the third major crude shock of the spring — and any USDA flash sale announcements that might appear over the long weekend reflecting early Chinese purchases under the $17 billion commitment. The week's fundamental picture leaves wheat under structural pressure, corn firmly supported by export demand, and soybeans repricing a tighter new crop balance sheet against the backdrop of an expected but not yet verified Chinese purchase acceleration.
Crop Futures Wrap
Wheat — Jul '26 CBOT SRW wheat closed Friday at $6.46 1/4, down 1 1/4 cents on the day and 10 1/2 cents lower on the week. KC HRW July was 1 3/4 to 5 cents in the red on Friday, down 6 cents on the week, and MPLS spring wheat July slipped 4 1/4 cents over the five sessions. Friday's close was actually an improvement on midday lows — the complex pulled off its worst levels — but the weekly loss reflects a market that absorbed the WASDE's 762 mbu new crop shock premium, watched spec longs get cut by 14,224 CBOT contracts to just 4,799 net long, and then absorbed Argentina's export tax reduction from 7.5% to 5.5% late Thursday. New crop wheat sales running 51.45% below last year are the most concerning forward demand signal, while France at 80% good/excellent and Argentina's reduced export tax are the structural bearish offsets capping any sustained recovery.
Corn — Jul '26 CBOT corn closed Friday at $4.63 1/4, up 1 cent on the day and 7 1/2 cents higher on the week. December firmed 5 1/2 cents on the week. The national average cash corn price closed at $4.23 1/2, up a penny. Friday's demand picture was exceptional — 493,700 MT to Mexico and 110,000 MT to unknown in private export sales, plus an overnight South Korean tender of 203,000 MT — totalling over 800,000 MT of demand activity in a single Friday session. Marketing year commitments of 79.873 MMT are 26% above year-ago and at 95% of USDA's forecast, within 1 percentage point of the average pace and closing fast. Managed money trimmed 6,129 contracts to 293,354 net long — a healthy reduction from last week's extreme that keeps the position well-supported without excessive overhang.
Soybeans — Jul '26 CBOT soybeans closed Friday at $11.96 1/2, up 2 1/4 cents on the day and 19 1/2 cents higher on the week. November was up 17 cents on the week. The national average cash bean price closed at $11.33 1/2. Soymeal was firm to $3.50 higher on Friday, with soy oil up 8 to 37 points — both legs closing positive for one of the cleaner unified complex sessions of the week. A 252,000 MT soymeal flash sale to unknown destinations — the fifth of the marketing year — added to Friday's constructive demand picture. Export commitments at 39.371 MMT remain 18% below year-ago and 3 percentage points behind the average pace, but the market is pricing in the imminent acceleration of Chinese purchases under the White House's $17 billion commitment. The week's 19 1/2 cent July gain is the market's advance payment on that expectation — the invoice comes due in next Thursday's Export Sales data.