Field Notes October 2026
Every morning on The Bunker, we look at what the markets are doing and try to understand why they're doing it. October gave us plenty to talk about.
Combines were rolling, USDA numbers were being debated, and we were hearing harvest reports from producers all across the Corn Belt. What struck me was how different those reports could be. One guy was disappointed in his corn, another was having one of his best soybean crops, and somebody a few hundred miles away was dealing with an entirely different set of problems.
Meanwhile, the futures market was trying to put a price on all of it.
That's really what October came down to: understanding the difference between what's happening on individual farms and what the market is looking at across the country
The Crop Depends on Where You're Standing
We heard from producers in Iowa, Illinois, Nebraska, Kansas, Ohio, Mississippi, and elsewhere throughout October. Some were reporting corn yields 10–20% below previous years, while others were seeing excellent soybean results. A few were experiencing both on the same farm.
Weather was part of the story. Too much rain in some areas, heat and disease pressure in others, and concerns about soybean quality where harvest conditions had been difficult.
But here's the thing. A poor crop in one county doesn't necessarily mean a poor national crop. And a record yield somewhere else doesn't mean everybody had a good year.
USDA has to take all those different conditions and come up with a national number. That number matters, but it doesn't tell the whole story.
That's one reason I like having producers from different regions in The Bunker. We're not just reading a report. We're hearing what's happening in the fields and comparing that information with what the broader market is telling us.
The important part is understanding how those pieces fit together without assuming any one observation represents the whole crop.
The Numbers Don't Trade by Themselves
USDA reports were a big part of our conversations, particularly corn stocks, yield expectations, and what changes in those numbers might mean for ending supplies.
One question that came up was whether higher reported stocks could offset a reduction in yield. That's worth understanding because the market doesn't look at production by itself.
Beginning stocks, production, exports, feed demand, and other uses all go into the balance sheet. Change one number, and the effect depends on what happens to the others.
We also talked about expectations going into a report.
I've said this before: It's not always the number itself that moves the market. It's how that number compares with what everybody was expecting.
A report can look bullish on paper and the market can still go down. That doesn't necessarily mean the report was wrong. It may mean traders had already positioned themselves for something even more bullish.
We also spent time looking at the Commitment of Traders reports and changes in open interest. Those numbers help us understand whether traders may be entering new positions or getting out of existing ones. When large funds start liquidating positions, prices can move quickly even without a major change in supply and demand. Open interest doesn't tell us everything, but combined with price action and other market information, it gives us another clue about what's driving the market.
That's why we spend time looking at the numbers, the market's reaction, and what may already be reflected in prices.
Basis Had Something to Say
Basis was another recurring topic this month.
Some producers were seeing stronger local bids even while futures were struggling. Others were watching basis change quickly as harvest moved through their areas.
That difference matters.
Futures reflect a broader market, while basis reflects conditions closer to home — local supply, processor demand, transportation, storage, and how much grain is actually available to buyers.
We also talked about whether producers' willingness and financial ability to hold grain might be affecting local supplies.
But holding grain isn't free. Storage costs, interest, cash flow, and the uncertainty of future prices all enter the picture.
It's easy to focus on the futures price because that's the number everybody sees. But a farmer ultimately deals with a local cash price, and basis is part of that equation.
Understanding what futures and basis are each telling you gives you a more complete picture than watching either one alone.
The World Doesn't Stop at the Farm Gate
Exports were on our radar throughout October, particularly soybean sales to China and the pace of corn demand.
We looked at reported sales, discussed how they compared with USDA projections, and talked about what still needed to happen for those projections to be met.
One distinction worth remembering is that a reported export sale isn't the same thing as a shipment. Both matter, but they tell us different things about demand.
South America was part of that conversation, too. Expectations for Brazilian and Argentine production influence the competitive position of U.S. grain, and buyers have more than one place to source their supplies.
We even got into the relationship between sugar prices, ethanol production in Brazil, and how that can connect back to corn demand.
As our harvest winds down, attention starts shifting toward the growing season in South America. Weather patterns in Brazil and Argentina become increasingly important because their production prospects influence global supplies and the demand for U.S. grain. It's a reminder that the market doesn't wait for one growing season to finish before it starts evaluating the next.
That's what makes these markets interesting. Sometimes something happening halfway around the world can influence the price of grain sitting in a bin in the Midwest.
We can't know exactly how all those factors will play out, but understanding the relationships helps us make better sense of the market.
What Is That Option Really Worth?
We spent a good deal of time discussing options this month, including volatility, premiums, and how different structures behave as prices move.
One member raised a question about an option that looked unusually inexpensive relative to where the futures market was trading.
That's a good question, because it gets at something I want people to understand.
An option's value isn't determined just by how far its strike price is from the market. Time remaining, implied volatility, and the probability of different price outcomes all influence the premium.
And a cheap option isn't necessarily a good value.
You have to understand what you're paying for, what needs to happen for that option to gain value, and what can cause it to lose value even if the underlying market moves in the direction you expected.
We also looked at seasonal tendencies, technical patterns, and volatility across several markets.
Those tools can help us evaluate market behavior, but none of them tells us with certainty what happens next.
That's why we keep coming back to the fundamentals of options. The objective isn't to memorize a particular strategy. It's to understand how the pieces work and what the risks are.
Sometimes the Best Information Comes from the Conversation
One of the things I enjoyed most about October was the participation from our members.
We had farmers sharing harvest results, asking about basis, questioning USDA estimates, and comparing what they were seeing locally with what the market was doing.
We also spent time outside the grain markets, discussing cattle, wheat, soybean meal and oil, interest rates, and the broader financial picture.
One thing we talked about toward the end of the month was paying attention to how a market responds to news. If a report comes out that looks favorable and the market doesn't respond the way you'd expect, that's worth noticing. Sometimes the reaction tells you as much as the report itself. It doesn't mean we know what happens next, but it gives us another piece of information to evaluate.
Those conversations are important because no single chart, report, or opinion gives us everything we need to understand a market.
And sometimes a good question is more valuable than another prediction.
That's what I want The Bunker to be about. We bring the information together, look at it from different angles, and try to understand what's really driving prices.
October was a good reminder that the market doesn't always see things the way we do from the farm. And even when we have good information, we still have to understand how the market is interpreting it.
We may not know what the market will do tomorrow, but we can do a better job of understanding what it's telling us today.
That's why we keep showing up every morning.
See you next month.
Brian
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