StoneX logo

Corn Weekly Report

By: StoneX Intelligence Brazil, StoneX Intelligence Brazil

Corn has a busy week in Chicago but ends the period close to stability
 
João Pedro Lopes
Market Intelligence Analyst
US crop, Black Sea situation and expectations around September's WASDE moved the market
Bearish factors
  • Slow pace of US shipments and sales;
  • Expectation of a more comfortable balance sheet in the US in 2023/24.
Bullish factors
  • Worsening tensions between Russia and Ukraine;
  • Concern about the weather impacts on China's corn crop.

After two straight weeks lower, corn futures have moved back up in Chicago. The December/23 ended last Friday, September 8, quoted at 483.75 cents/bu, an appreciation of 0.5% in the weekly comparison.

Intraday (15 min) contract December/23 (CBOT)
image 79797
Source: CME. Design:  StoneX.

image 79798
Source: CME. Design:  StoneX.

 

 

 

American crop condition: According to the USDA crop follow-up report, 53% of corn crops were rated good/excellent (B/E) on Sept. 3, down three percentage points from a week earlier, down 1 point from the same period last year, and 7 points below the 5-year average. A drop in crops classified as good/excellent was expected, but the drop was 1 point higher than the agents' expectation. The US crop is advancing as expected. About 18% of the crop is mature, two percentage points above the 5-year average, and 67% has reached the denting stage, also 2 points above average. The market is preparing to shift its focus to harvesting, and soon, dry days will be considered bearish, as they would allow a rapid advance of fieldwork.

CONAB raises Brazil's production estimate: Last Wednesday (Sep 6), Conab released its new 2022/23 corn crop estimates. Total production in 2022/23 rose to 131.87 million tonnes, driven by an adjustment in the second crop, which advanced to 102.16 million tonnes. Click here to see the full report.

StoneX has released its new estimate for the US 2023/24 crop based on productivity surveys and considers the official USDA area. The national average productivity was estimated at 10.98 t/ha, a decrease of 0.13 t/ha from the previous number and slightly below the last USDA estimate (10.99 t/ha). With this, StoneX projects a production slightly lower than the Department's figure (383.83 million tonnes) at 383.61 million tonnes. Click here to view the full report.

US ethanol production: According to data released by the Energy Information Administration (EIA), US ethanol production totaled 1,012 thousand barrels per day (tbpd) in the week ended September 1, a slight advance of 5 tbpd in the weekly comparison. The volume recorded surpassed that observed in the same week last year by 23 tbpd and the 5-year average by 25 tbpd. On September 1, ethanol stocks had reached 21.62 million barrels, virtually unchanged in the weekly comparison but 560,000 barrels less than the 5-year average for the same period.
 

Weekly export sales - US (thousand tonnes)

image 79799
Source: USDA. Design:  StoneX.

US export inspections: According to the USDA's Export Inspection Report, the US shipped 481,300 tonnes of corn in the week ended Aug. 31, 118,600 tonnes less than a week earlier and 61,600 tonnes lower than at the same time in 2022. Cumulative exports in the 2022/23 season totaled 37.3 million tonnes, 17.8 million tonnes lower than in 2021/22.

US export sales: 2022/23 net sales were -15,200 tonnes in the week ended August 31, i.e., net cancellations. In the same week last year, net cancellations of 131,600 tonnes had been recorded. Commitments to all destinations came in at 40.6 million tonnes, 20.2 million tonnes less than in 2021/22.

Concerns about US river levels: Concern about the pace of US sales and shipments is not new, and with the dire outlook for river levels in the country, fears are growing. The river level in Memphis is forecast to reach -2.1 meters by Sept. 14. The current reading is -0.85 meters, and if the forecast is realized, 2023 will enter the group of the ten years of lowest readings in the place. 

Russia shows interest in the resumption of the Black Sea grain export agreement. In recent weeks, there have been active talks between Russia's leaders and Turkey about a resumption of the agreement. As long as the parties do not agree, Ukraine will continue to carry out successful transports through the special maritime corridor. The ships did not carry grain, but they signaled that Ukraine could succeed by this alternative route.

The long-awaited monthly supply and demand report from the USDA. The expectation is very high regarding possible adjustments for the US crop, both in productivity and area, since the Department has already signaled that revisions in the planted area may occur.
 

Spot prices (USD/60kg-bag)
image 79800
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: Morning Commentary for August 5

August 5 – U.S. equities markets are on fire this week, with both the Dow Jones and S&P 500 setting new all-time highs yesterday with futures indicating further gains again today; the marketplace remains optimistic over a deal with Iran despite no evidence of such as of yet. Crude oil is working on a lower high and low today but remains slightly on the high side on the session, while the dollar is retreating back towards Monday’s nearly two-month low. The ten-year note is steady-to-lower this morning (though solidly lower so far this month) at 4.605%, while the VIX index continues to rebound into mid-week at almost a 17-point reading this morning.

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

Perspective: Morning Commentary for August 4

August 4 – The benchmark Dow Jones Industrial Average surged into the close yesterday to finish almost 700 points higher, at a record close of 53,178 points – easily clearing the previous top from almost a month ago. The S&P 500 is on the brink of its own record as well, while the NASDAQ index is short of June highs but working on a strong three-session rally. All three are pointing to positive openings today. Palantir (a U.S. software company) reported better-than-expected earnings yesterday afternoon post-close to boost the tech sector, though a host of other firms reported strong earnings as well. The ten-year note continues to retreat from Friday’s high, now at 4.67%, with the dollar on the high side of level-par, while the VIX index now under 16 shows reduced volatility.

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

Perspective: Morning Commentary for August 3

August 3 – Equities futures are pointing higher to open the week and month, still in range of recent record highs and flush with optimism that the U.S. and others will start to negotiate with Iran over the Strait of Hormuz. A busy week is on tap with earnings reports and jobs data, among other economic releases. Crude oil is down over $5 per barrel and nearing in on three-week lows. The dollar is only slightly lower this morning but at its own month-and-a half low, while the U.S. ten-year note is also slightly on the low side at 4.68. The VIX index is rebounding a bit today after a sharp slide into the end of last week, just above 16.

Matt Zeller
Matt Zeller
  • Grains & Oilseeds
  • Energy
  • Dairy
  • Renewable Fuels
  • Cocoa
  • Coffee
  • Cotton
  • Sugar
  • Meats & Livestock
  • Forest Products
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.