StoneX logo

Corn Weekly Report

By: StoneX Intelligence Brazil, StoneX Intelligence Brazil

Corn has a week marked by a significant drop in Chicago
 
João Pedro Lopes
Analista de Inteligência de Mercado
Weather in South America and US harvest and exports moved the market.
Bearish Factors
  • Slow pace of shipments in the US;
  • Concern about river levels in the US and impacts on grain flow;
  • US harvest progress.
     
Bullish Factors
  • Tensions between Russia and Ukraine;
  • Logistical problems at ports in Northern Brazil;
  • Corn crushing for ethanol production above the average of the last five years.

Last week, corn futures showed a strong bearish trend in Chicago. December/23 ended Friday's session (October 27) at 480.25 cents/bu, a contraction of 3% in the period. The still low levels of rivers in the USA, the progress of the American harvest, and prospects of increased moisture in productive regions of South America contributed to the movement.

 

Intraday (15 min) December/23 contract (CBOT)
image 83020
Source: CME. Design: StoneX.

image 83021
Source: CME. Design: StoneX.

 

 

 

US crop progress: According to the USDA weekly crop follow-up report, 59% of corn crops had been harvested by October 22, a weekly increase of 14 percentage points (p.p.), in line with market expectations. The pace aligns with last year's five p.p. ahead of the 5-year average. The good pace of fieldwork was one of the factors that led to the contraction of prices over the past few days. The weather models indicate a high volume of rainfall in the US Midwest, which may slow down the harvest progress but does not threaten production. Click here to access the full report.

Corn ethanol production: According to data released by the Energy Information Administration (EIA), US ethanol production totaled 1,040 thousand barrels per day (tbpd) in the week ending October 20, up five tbpd from a week earlier and 25.6 tbpd above the 5-year average for the same period. The attractive margins of ethanol in the Midwest have been contributing to biofuel production. On the stocks side, there was also an increase in volume to 21.4 million barrels, 286 thousand more than a week before.

Mississippi River Level: River conditions in the US continue to be closely monitored by the market. According to NOAA data, the levels in Memphis were at -2.6 meters this Monday morning (30), above the recorded one week before (-3.0 m). Amidst the forecast of a higher volume of rainfall throughout the next week in regions where the Mississippi River passes, NOAA projects a reading of -2.0 m in Memphis by the end of the first week of November. Despite the improvement, the scenario is still a cause for concern, as the river level would still be classified as low (below -1.5 m).

Weekly export sales - US (thousand tonnes)

image 83022
Source: USDA. Design: StoneX.

US export inspections: As observed in the USDA's Weekly Export Inspection Report, the US continues to show a weakened pace of shipments. In the week ending on October 19, the country shipped 437.5 thousand tonnes of corn, a volume lower than the one observed in the previous week (466.6 thousand tonnes) and the one recorded in the same week last year (472.6 thousand tonnes). Despite the drop, the pace is still ahead of last year by 631 thousand tonnes, totaling 4.4 million tonnes since the beginning of the 2023/24 cycle.

US export sales: Despite still weak shipments, export sales showed a little more warmth in the week ending October 19th. Net sales for the US 2023/24 season totaled 1.35 million tonnes in the referred week, about 1.1 million tonnes more than in the same week last year and above the upper limit of the market's expectations range, which ranged from 600,000 to 1.2 million tonnes. The country traded 17.5 million tonnes in 2023/24, compared to 14.1 million in the same period of the previous season.

Weather in South America: The dry weather pattern in Argentina continues to be a cause for concern. The planting reached 22% by October 25, in line with last year's period but nine p.p. below the 5-year average. Despite the delay, productive areas of the country recorded a considerable volume of rainfall last week, which can assist in sowing progress. In addition, the models indicate good precipitation volume in the coming days, which, if realized, would help reduce the water deficit in the region. The planting of Brazil's first corn crop is also delayed, reaching 43.3% at the end of last week, compared to 55.7% in the same period last year. Despite the slower pace, the main concern is the pace of soybean sowing, as its delay could reduce the window for planting the second corn crop. The planting of the oilseed reached 43.2%, compared to 50.2% in the same period last year. On the other hand, just like for Argentina, the models indicate good rainfall in the main producing regions of Brazil, especially in the second week of November, which can contribute to the progress of fieldwork.
 

 

SPOT PRICES (USD/60kg bag)
image 83023
Source: StoneX. Design: StoneX.
 

INDICATORS
  • Grains & Oilseeds

The StoneX Group Inc. group of companies provides financial services worldwide through its subsidiaries, including physical commodities, securities, exchange-traded and over-the-counter derivatives, risk management, global payments and foreign exchange products in accordance with applicable law in the jurisdictions where services are provided. References to over-the-counter (“OTC”) products or swaps are made on behalf of StoneX Markets LLC (“SXM”), a member of the National Futures Association (“NFA”) and provisionally registered with the U.S. Commodity Futures Trading Commission (“CFTC”) as a swap dealer. SXM’s products are designed only for individuals or firms who qualify under CFTC rules as an ‘Eligible Contract Participant’ (“ECP”) and who have been accepted as customers of SXM. StoneX Financial Inc. (“SFI”) is a member of FINRA/NFA/SIPC and registered with the MSRB. SFI is registered with the U.S. Securities and Exchange Commission (“SEC”) as a Broker-Dealer and with the CFTC as a Futures Commission Merchant and Commodity Trading Adviser. References to securities trading are made on behalf of the BD Division of SFI and are intended only for an audience of institutional clients as defined by FINRA Rule 4512(c). References to exchange-traded futures and options are made on behalf of the FCM Division of SFI . StoneX is a trading name of StoneX Financial Ltd (“SFL”). SFL is registered in England and Wales, Company No. 5616586. SFL is authorized and regulated by the Financial Conduct Authority [FRN 446717] to provide to professional and eligible customers including: arrangement, execution and, where required, clearing derivative transactions in exchange traded futures and options. SFL is also authorised to engage in the arrangement and execution of transactions in certain OTC products, certain securities trading, precious metals trading and payment services to eligible customers. SFL is authorised & regulated by the Financial Conduct Authority under the Payment Services Regulations 2017 for the provision of payment services. SFL is a category 1 ring-dealing member of the London Metal Exchange. In addition SFL also engages in other physically delivered commodities business and other general business activities which are unregulated and not required to be authorised by the Financial Conduct Authority. StoneX Group Inc. acts as agent for SFL in New York with respect to its payments services business. StoneX APAC Pte. Ltd. acts as agent for SFL in Singapore with respect to its payments services business. ‘StoneX’ is the trade name used by StoneX Group Inc. and all its associated entities and subsidiaries.
 
Trading swaps and over-the-counter derivatives, exchange-traded derivatives and options and securities involves substantial risk and is not suitable for all investors. Past performance of any futures or option is not indicative of future success. Indicators are not a trading system and are not published as a specific trade recommendation. The information herein is not a recommendation to trade nor investment research or an offer to buy or sell any derivative or security. It does not take into account your particular investment objectives, financial situation or needs and does not create a binding obligation on any of the StoneX group of companies to enter into any transaction with you. You are advised to perform an independent investigation of any transaction to determine whether any transaction is suitable for you. No part of this material may be copied, photocopied or duplicated in any form by any means or redistributed without the prior written consent of StoneX Group Inc.
 
© 2026 StoneX Group Inc. All Rights Reserved.

Satellite view of Earth at night showing illuminated cities across Asia and the Middle East

Discover more insights

Our subscribers have access to comprehensive market analysis from StoneX spanning commodities, equities, currencies and more.

Related articles for Grains & Oilseeds

Perspective: Mid-Day Commentary for August 7

August 7 – Stocks are looking to end a strong week on a strong note, with the major indexes all in the green at the time of writing. The VIX touched a nearly seven-month low earlier in the session and remains muted as it hovers just below the 15-mark as this morning’s ugly labor market data helps ease hawkish Fed jitters. The dollar has rebounded from its nearly two-month low earlier in the session but remains in the red on the day, trading at 99.55 at the time of writing. Treasuries have had a very volatile day, with yields tanking following this morning’s Non-Farm Payrolls release but bouncing back into midday, with 30-year yields now trading at 5.209%, 10-year yields trading at 4.654%, and 2-year yields trading at 4.204%. Crude oil has risen from the morning lows as traders eye the weekend market closure for potential geopolitical developments, with nearby WTI now down only 0.2% on the day to trade around $78.10 and nearby Brent breaking into the green, up 1.25% on the day to trade above $83.50. The ags are largely mixed, with the grains and oilseeds mostly in the green, save for a mixed picture in the soy complex, while live and feeder cattle futures move in opposite directions, with the former adding to yesterday’s sharp losses and the latter attempting a rebound.

Mike Castle
Mike Castle
  • Grains & Oilseeds

Perspective: Morning Commentary for August 7

August 7 – The U.S. economy unexpectedly lost 23k jobs in July, dramatically below market expectations of an 80k increase and marking the worst Non-Farm Payrolls print since February. Furthermore, May and June were both revised sharply downward, with combined revisions showing 103k fewer jobs than previously reported. Outside of the healthcare sector, which added 22k jobs in July, the losses were very broad-based. Government payrolls saw the largest decline, shedding 53k jobs in July, the largest seen since October 2025, while June was revised down to show a loss of 10k jobs as well. The private sector at least saw growth, adding 30k jobs in July, now matching the month prior after it was revised down from the 49k initially reported, and substantially missing forecasts of 78k jobs being added. This is a sharp reversal in course from the largely better than expected U.S. labor data seen earlier this week.

Mike Castle
Mike Castle
  • Grains & Oilseeds
  • Energy
  • Dairy
  • Renewable Fuels
  • Cocoa
  • Coffee
  • Cotton
  • Sugar
  • Meats & Livestock
  • Forest Products

Morning Grain Comments 8-7

Morning Grain Market Comments - Matt Zeller

Matt Zeller
Matt Zeller
  • Grains & Oilseeds
StoneX: We open markets

Our market expertise, advanced platforms, global reach, culture of full transparency and commitment to our clients’ success all set us apart in the financial marketplace.

Reach

With access to 40+ derivatives exchanges, 180+ foreign exchange markets, nearly every global securities marketplace and numerous bilateral liquidity venues, StoneX’s digital network and deep relationships can take clients anywhere they want to go.

Transparency

As a publicly traded company meeting the highest standards of regulatory compliance in the markets we serve, our financials and track record are matters of public record. StoneX’s commitment to “doing the right thing over the easy thing” sets us apart in the industry and helps us build respect, client trust and new partnerships.

Expertise

From our proprietary Market Intelligence platform to “boots-on-the-ground” expertise from award-winning traders and professionals, we connect our clients directly to actionable insights they can use to make more informed decisions and achieve their goals in the global markets.