US Crop Intelligence — The Early Harvest Lead Disappears

The early lead in the US corn and soybean harvest has disappeared, with both crops now running exactly in line with their five-year averages and national condition ratings unchanged. But the convergence is not a uniform slowdown: Illinois advanced its corn harvest six points and its soybeans eight, while Iowa managed one point in each after just 1.1 days suitable for fieldwork. The more unusual signal has meanwhile shifted to winter wheat, where planting is now seven points behind normal.

TL;DR

• Corn harvest reached 18%, up from 13%, but the early lead has disappeared: progress is now exactly in line with the five-year average and one point ahead of last year.
• The national figure conceals a widening state divide. Illinois corn harvest advanced from 16% to 22%, while Iowa moved only from 4% to 5%.
• In soybeans the contrast is sharper still: Illinois doubled from 8% to 16% harvested, while Iowa edged from 2% to 3%.
• Iowa had only 1.1 days suitable for fieldwork, down from 1.7, with 39% of topsoil rated surplus moisture.
• Corn condition remains 57% good/excellent, completely unchanged from last week and nine points below the comparable 2025 rating.
• Soybean harvest reached 17%, exactly on its five-year average, with condition unchanged at 58% good/excellent, four points below the comparable 62% in 2025.
• Cotton harvest accelerated to 17%, two points ahead of normal, while condition improved one point to 35% good/excellent. The comparable 2025 crop was 47%.
• Winter-wheat planting is only 27% complete against a 34% five-year average, while emergence is 8% against 11% normally.

US Crop Dashboard

The change from last week is straightforward. Corn and soybeans were running ahead of their normal harvest pace; neither is now. Cotton remains ahead, while the winter-wheat planting deficit has widened enough to become the most notable progress divergence in the report.

National Crop Condition Dashboard

Corn's distribution is completely unchanged from the previous week. Soybeans remain at 58% good/excellent, although the internal mix improved marginally as poor/very poor fell by one percentage point, and cotton improved by one point.

The larger comparison remains with the equivalent week of 2025. Corn is nine points below last year's 66% good/excellent rating, soybeans are four points below the comparable 62%, and cotton is twelve points below the comparable 47%. The 2026 crops are therefore still entering harvest with weaker condition profiles than at the same point last year; what has changed is that they are no longer deteriorating.

Corn: The Harvest Lead Is Gone

Corn harvest advanced from 13% to 18% nationally, but that five-point gain was enough only to bring progress level with the five-year average. Last week the crop was two points ahead of normal; it is now exactly on it.

Last week's national lead concealed a widening divide inside the Corn Belt. Illinois corn harvest advanced from 16% to 22% during the latest week, while Iowa moved only from 4% to 5%. The contrast is even sharper in soybeans: Illinois doubled from 8% to 16% harvested, while Iowa edged from 2% to just 3%. Iowa had only 1.1 days suitable for fieldwork as persistent rain restricted combines, down from an already limited 1.7 days the previous week, with 39% of topsoil rated as having surplus moisture. The national convergence on the five-year average therefore does not describe a uniformly slowing harvest; it reflects sharply different fieldwork conditions as the harvest moves through the largest producing states.

That distribution matters because Iowa alone accounts for around 13.25 million planted corn acres this year. A crop that could not be harvested in the week just gone has not been lost, but it is still standing in the field, and the weight of unharvested acreage is now concentrated in the states where conditions have been worst.

Development itself remains slightly advanced nationally. Ninety-six per cent of corn is dented against a 95% average, while 72% is mature against 71%, so the crop is ready to move through harvest broadly on schedule once field conditions permit.

Condition offers no new signal. The national distribution — 6% very poor, 11% poor, 26% fair, 44% good and 13% excellent — did not change at all during the week. Good/excellent remains 57%, nine points below the comparable 2025 rating of 66%, while poor/very poor remains 17%.

That leaves the same question identified in last week's report, but with more urgency as harvested acreage expands: does USDA's 178.5-bushel-per-acre September yield assumption survive the combine? USDA's September Crop Production report put corn production at 15.800 billion bushels, with the lower yield partly offset by acreage, and the balance sheet remains relatively tight by recent US standards — 2026/27 ending stocks projected at 1.567 billion bushels against total use of 16.180 billion, equivalent to stocks-to-use of roughly 9.7%.

The Crop Progress report does not provide realised yield data, so the unchanged 57% condition rating cannot answer that question. What it does tell us is that there has been no additional national deterioration entering the next phase of harvest.

That distinction matters for market positioning. Managed money held +404,097 corn contracts net long in the CFTC report for positions held 22 September, so a large speculative position is moving into a harvest that is no longer ahead of normal and a crop whose national condition has stopped weakening. That does not make the position wrong; it raises the evidentiary threshold. From here, a further bullish supply argument increasingly needs to come from harvested yields rather than another decline in weekly condition ratings.

Soybeans: Back to Normal

Soybeans tell much the same story. Harvest advanced nationally from 12% to 17%, but the four-point advantage over the five-year average reported last week has disappeared: progress is now exactly on the 17% normal pace and one point behind last year's 18%. Leaf drop reached 75%, also exactly on the five-year average and one point behind 2025.

The state divergence is even more pronounced than in corn. Illinois soybean harvest doubled from 8% to 16% during the week while Iowa advanced a single point to 3%, twelve percentage points behind last year, with Iowa leaf drop at 62%. Persistent rain rather than crop condition was the immediate constraint, and processors across parts of Iowa and the surrounding western Midwest have reportedly been bidding aggressively for nearby soybeans because delayed harvest has restricted new-crop deliveries.

The condition picture is slightly more constructive than the unchanged headline suggests. Good/excellent remains at 58%, but poor/very poor fell from 14% to 13%, with the distribution moving from 4% very poor, 10% poor, 28% fair, 46% good and 12% excellent last week to 4%, 9%, 29%, 47% and 11% respectively. It is a marginal shift rather than a crop-changing development, and more importantly there is again no fresh national deterioration. The correct year-on-year comparison for the week ended 28 September 2025 is 62% good/excellent, putting this year's crop four percentage points lower.

The production test remains USDA's 52.8-bushel-per-acre September yield. That is already below 2025's 53.0 bushels, meaning the prospective record 4.535-billion-bushel crop depends on the much larger harvested area of 85.881 million acres rather than superior productivity. A modest yield miss across such a large harvested area can remove a meaningful amount of production, while USDA's September balance sheet already reduced projected ending stocks to 310 million bushels.

Managed-money positioning makes the harvest evidence particularly relevant. Funds increased their soybean net long to +265,159 contracts in the week to 22 September, reversing the reduction seen in the previous CFTC report — yet USDA's physical progress data have not deteriorated alongside that renewed positioning, with national harvest normal and the condition rating unchanged. As with corn, that is not evidence against the long position by itself. The next justification for the trade increasingly has to come from realised yields, the October production revision, demand or some combination of the three.

Cotton: Still Weak, But No Longer Deteriorating

Cotton remains the weakest of the three major crops in year-on-year condition terms, but this week's report is marginally better. Good/excellent improved from 34% to 35%, while poor/very poor remained exceptionally high at 35%, with the underlying distribution at 12% very poor, 23% poor, 30% fair, 29% good and 6% excellent.

At the equivalent point in 2025, cotton was 47% good/excellent. This year's 35% rating is therefore twelve percentage points lower, so the year-on-year condition gap remains substantial even after the one-point weekly improvement.

Harvest, meanwhile, is moving faster than normal. Seventeen per cent of the crop has been harvested, up from 13% and two points ahead of both last year and the five-year average, while bolls opening reached 70%, three points ahead of normal. USDA's September Crop Production report had already reduced all-cotton production to 13.20 million bales, with expected yield cut to 776 pounds per harvested acre, 76 pounds below 2025.

The weekly data therefore offer no reason to reverse the weaker production view already embedded in USDA's September estimate, but neither do they provide fresh evidence that conditions are continuing to deteriorate.

Managed money reduced cotton net length by 15,753 contracts to +76,182 in the week to 22 September. Of the three major crops, cotton's positioning move is the easiest to reconcile with the latest physical data: harvest is moving ahead of normal, condition improved marginally, and funds reduced exposure to a crop whose condition profile remains historically weak. The next question is no longer whether cotton ratings can recover meaningfully but, with harvest at 17%, whether realised yields confirm the damage already incorporated into USDA's 776-pound assumption.

Winter Wheat: The Deficit Is Becoming Material

Winter wheat is the most notable new divergence in this week's report. Planting advanced ten percentage points to 27%, but remains well behind both last year's 32% and the 34% five-year average, while emergence reached 8% against 12% last year and an 11% average. Last week planting was four points behind normal; the deficit is now seven.

That makes the delay more significant, but it still requires careful interpretation. Late-September planting progress is not a production forecast, winter wheat has a substantial establishment window remaining, and a planting delay can close rapidly under favourable field conditions. There is also a countervailing weather consideration: the same wet pattern capable of delaying fieldwork can improve moisture across parts of the Central and Southern Plains, so rain can be negative for the immediate planting percentage while being positive for soil moisture and eventual establishment.

For now, the correct conclusion is narrower. Winter-wheat establishment is materially behind its normal calendar, but the agronomic consequences are not yet clear.

The market context makes it worth watching more closely. Chicago SRW managed money was −12,016 contracts net short as of 22 September, so a seven-point planting deficit sits alongside a net-short speculative position. That is a genuine divergence between physical progress and positioning rather than a bullish wheat thesis. If planting catches up over the next fortnight the divergence disappears; if the deficit persists into October and emergence remains behind normal, it becomes considerably more relevant.

Outlook

Base case: Corn and soybean harvest progress remains around its normal seasonal pace as fieldwork advances, while USDA's September yield assumptions remain broadly intact. Cotton harvest continues ahead of normal with much of the deterioration already reflected in the 776-pound yield estimate. Winter-wheat planting catches up as the calendar moves into October.

Upside supply risk: Corn and soybean harvested yields outperform USDA's September assumptions as more core producing acreage enters the sample. Corn holds at or above 178.5 bushels per acre, soybean yield meets or exceeds 52.8 bushels, and cotton performs better than its weak condition profile implies.

Downside supply risk: Realised corn yields push USDA below 178.5 bushels, tightening a balance sheet already carrying stocks-to-use below 10%. Soybean yield falls far enough to erode the acreage-driven production record. Cotton requires another reduction from 776 pounds, while winter-wheat planting delays persist into the more important October establishment period.

What would change the view: Consistent harvested-yield evidence above or below USDA's September assumptions across a representative share of the major producing states, followed by revisions in the October Crop Production report. For winter wheat, the key test is whether the current seven-point planting deficit narrows materially over the next two reports.

Key Risks

• Iowa fieldwork. At 1.1 suitable days and 39% surplus topsoil moisture, Iowa corn is 5% harvested and soybeans 3%, against Illinois at 22% and 16%. Continued restriction would push the national pace below normal.
• Corn yield. Condition has stabilised, but 57% good/excellent remains nine points below the comparable 2025 rating. A yield below 178.5 bushels would further tighten a balance sheet with stocks-to-use near 9.7%.
• Soybean yield. The prospective record crop relies on acreage. A meaningful yield miss against 52.8 bushels could remove the production cushion quickly.
• Cotton yield. Condition is 35% good/excellent against 47% at the equivalent point in 2025, leaving USDA's 776-pound assumption exposed to harvest evidence.
• Winter-wheat establishment. Planting is seven points behind normal and emergence three points behind. It is too early to infer production losses, but the deficit is now too large to dismiss.
• Weather and fieldwork. Further heavy rain can simultaneously delay harvest and wheat planting while improving Plains soil moisture, making the immediate progress effect different from the eventual crop effect.
• Positioning. Corn and soybean funds remain heavily net long without fresh deterioration in the weekly crop data, while SRW wheat is net short despite the widening planting deficit.

Intelligence Monitoring Points

• The Illinois–Iowa gap, at 22% against 5% in corn and 16% against 3% in soybeans, and whether it narrows as conditions allow.
• Iowa days suitable for fieldwork, at 1.1 after 1.7 the previous week.
• Corn harvested yield against USDA's 178.5 bu/acre assumption.
• Soybean yield against 52.8 bu/acre across 85.881 million harvested acres.
• Cotton yield against 776 lb/acre, with condition at 35% good/excellent.
• Winter-wheat planting at 27% versus 34% normally, and whether the deficit closes during early October.
• Winter-wheat emergence at 8% versus an 11% average.
• Managed-money positioning: corn at +404,097, soybeans at +265,159, cotton at +76,182 and Chicago SRW at −12,016.
• October Crop Production, when USDA next incorporates a larger body of harvested evidence into national production estimates.

FAQ

Is the US corn harvest still ahead of normal? No. Corn harvest reached 18% in the week ended 27 September, exactly matching the five-year average. It remains one point ahead of last year's 17%, but the two-point advantage over normal reported a week earlier has disappeared.

Why did the lead disappear? Geography rather than crop development. Illinois advanced its corn harvest from 16% to 22% during the week, while Iowa managed only 4% to 5% after just 1.1 days suitable for fieldwork. The national figure converged because the harvest is moving into states where conditions have been much worse.

Has the corn crop deteriorated further? Not nationally. Corn remains 57% good/excellent and its entire five-category condition distribution was unchanged during the week. The crop is nevertheless materially weaker than the comparable 2025 rating of 66%.

What happened to the soybean harvest lead? The same mechanism, more sharply. Illinois doubled from 8% to 16% harvested while Iowa reached only 3%, twelve points behind last year.

Is cotton improving? Marginally. Condition increased from 34% to 35% good/excellent and harvest advanced to 17%, two points ahead of normal. At the equivalent point last year, 47% of the crop was rated good/excellent, so the broader 2026 weakness has not been reversed.

Is the winter-wheat planting delay a production problem? Not yet. Planting is seven points behind the five-year average and emergence three points behind, which is worth monitoring. But late-September planting progress alone does not establish a yield or production loss, and rainfall may improve soil moisture for establishment even while delaying fieldwork.

Data and source note: National and state progress and condition figures are from USDA NASS's Crop Progress report for the week ended 27 September 2026, released 28 September; Iowa fieldwork and topsoil moisture figures are from the corresponding Iowa Crop Progress and Condition report. Year-on-year condition comparisons use the corresponding USDA NASS report for the week ended 28 September 2025 rather than carrying forward the prior week's comparison, which is why the soybean year-ago figure differs from the one published a week earlier. Production, yield, acreage and balance-sheet figures use USDA's September Crop Production report and WASDE. Managed-money references use the CFTC Disaggregated Commitments of Traders — Futures Only report for positions held 22 September. Crop Progress percentages are survey-based estimates and should not be interpreted as measurements of realised yield.

Sources

• USDA NASS — Crop Progress
• Iowa Department of Agriculture — Iowa Crop Progress and Condition Report, week ended 27 September 2026
• USDA NASS — Crop Production
• USDA — World Agricultural Supply and Demand Estimates
• US Commodity Futures Trading Commission — Disaggregated Commitments of Traders
• Bloodstone Research — US Crop Intelligence: Harvest Accelerates as the Yield Test Begins

This document is published by Bloodstone Research for informational and institutional research purposes only. It does not constitute investment advice, an investment recommendation, an offer or solicitation to buy or sell any financial instrument, commodity or security, or a forecast of future performance. Market conditions and data may change without notice. Readers should conduct their own analysis and, where appropriate, seek independent professional advice before making investment decisions. For institutional enquiries contact research@bloodstonecapital.co.uk.