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Investors should first clarify what “grain stocks” means: USDA grain stocks are estimates of physical crop inventories, while fertilizer stocks usually means shares in fertilizer companies. They are not comparable securities. To assess the related investment risks, examine fertilizer producers’ prices, input costs, plant reliability, seasonal inventory and finances; for grain data, compare the same crop, place, date and storage position, and distinguish measured stocks from forecasts.

What “fertilizer stocks” and “grain stocks” mean

“Fertilizer stocks” normally refers to equity in businesses that produce or distribute nutrients such as nitrogen, phosphate and potash. “Grain stocks,” in USDA reporting, means physical quantities of crops held in storage. USDA’s Grain Stocks survey reports inventory estimates; it does not describe a stock investors can buy, nor does it represent the inventory exposure of any particular grain company. A grain merchant’s shares are a separate investment with company-specific operating and financing risks.

That distinction matters because a crop-inventory figure can inform the agricultural backdrop without directly predicting the performance of fertilizer shares or grain merchants. A useful comparison separates the business risks of companies from the supply information in USDA reports.

What the latest USDA grain-stock figures show

USDA’s National Agricultural Statistics Service (NASS) reported that, as of September 1, 2026, U.S. old-crop corn stocks were 2.10 billion bushels, 35% above the prior year. All-wheat stocks were 1.85 billion bushels, down 14% year over year; the release headline rounds the decline to 13%. Soybean stocks were down 3% year over year. These are USDA NASS estimates for that reference date, not forecasts of future prices. USDA NASS, September 30, 2026

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The same release reported indicated corn disappearance of 3.20 billion bushels for June–August 2026, compared with 3.09 billion bushels in June–August 2025. Disappearance is a use-flow measure over a period; it is different from the amount physically on hand at a specific date. USDA NASS, September 30, 2026

How to compare grain-stock data correctly

NASS publishes Grain Stocks quarterly, in March, June, September and January. The survey covers commodities at national and state levels and distinguishes on-farm from off-farm stocks. September estimates refer to stocks on September 1. When comparing figures, keep the following dimensions aligned: NASS Grain Stocks survey guide

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  • Crop: Compare corn with corn, wheat with wheat, or soybeans with soybeans—not unlike commodities.
  • Geography: Do not compare a state estimate with a national total as though they describe the same market.
  • Reference date and units: Check the date stocks were measured and the unit reported.
  • Storage position: Note whether stocks are on-farm or off-farm; the two positions capture different parts of the storage system.
  • Measure: Separate inventory on hand from disappearance or use over a period.
  • Data type: Treat a survey estimate of stocks differently from a forward-looking supply-and-use forecast.

NASS Grain Stocks is a quarterly inventory report. USDA’s World Agricultural Supply and Demand Estimates (WASDE) is published monthly and provides forecasts for U.S. and world supply and use across wheat, rice, coarse grains, oilseeds, cotton and other covered commodities. As of October 4, 2026, USDA listed the October WASDE release for October 9; that forecast was not yet available on October 4, so no October forecast figures should be treated as known. USDA WASDE report page and release calendar

Fertilizer-company risks investors should compare

Fertilizer businesses do not all have the same products, facilities, sourcing or hedging. For a company-to-company comparison, examine its nutrient and product mix; feedstock exposure; geographic and plant concentration; hedge policy; seasonal working capital and inventory; customer and acreage exposure; debt and liquidity; and valuation. The following operating risks explain why the same agricultural conditions can affect companies differently.

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Selling prices versus feedstock costs

For nitrogen producers, natural gas can be a major feedstock. The key question is whether fertilizer selling prices can preserve margins as gas and other input costs move. Exposure depends on product mix, geography, sourcing and hedging. LSB Industries’ 2025 Form 10-K identifies natural gas as a primary raw material at several facilities and says chemical facility requirements are generally purchased at first-of-month market prices. LSB Industries 2025 Form 10-K

Plant reliability, supply and concentration

Plant outages, feedstock or transportation disruptions, and competing global capacity can change available supply, costs and margins. Assess how concentrated production is, the reliability and maintenance needs of facilities, and the company’s cost position instead of assuming current market conditions will persist. CF Industries’ 2026 investor presentation attributed elevated domestic nitrogen prices to strong demand and domestic and global supply issues; that is company commentary, not independent evidence of future returns. CF Industries 2026 investor presentation

Seasonal demand and inventory costs

Fertilizer demand is seasonal, so buying, production and sales timing can affect working capital and storage needs. LSB’s 2025 Form 10-K says weaker-than-expected seasonal demand may leave the company holding excess inventory, with storage costs or a need to liquidate below production, procurement and storage costs. LSB Industries 2025 Form 10-K

Crop economics and customer demand

Crop prices, planted acreage, yields, weather and farmers’ purchasing decisions can all affect fertilizer demand. Grain stocks and stocks-to-use ratios provide context about supply, but they do not by themselves determine a fertilizer company’s sales or results. CF Industries’ presentation uses a corn stocks-to-use and pricing comparison, but an observed relationship should not be treated as proof that one measure caused the other or that it predicts a particular company’s returns. CF Industries 2026 investor presentation

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Nutrient mix and customer affordability

Nitrogen, phosphate and potash have distinct price and availability dynamics. The Andersons’ 2025 Form 10-K describes volatility in these nutrient inputs and warns that higher prices can reduce customer demand and leave the company with higher inventory. Investors should therefore look at the nutrients and customers a business actually serves rather than treating “fertilizer” as one uniform exposure. The Andersons 2025 Form 10-K

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Risks in grain merchants and integrated agricultural firms

A grain merchant’s equity exposure is not the same as owning grain or tracking USDA stocks. Merchandising firms may use futures to hedge price exposure, but a hedge does not remove every risk. The Andersons’ 2025 Form 10-K identifies imperfect offsets between hedges and the exposure being hedged, as well as potential margin calls. Basis movements, timing mismatches, counterparty exposure and the liquidity needed to meet margin calls can still matter. The Andersons 2025 Form 10-K

How to use stocks data without treating it as a price signal

Grain stocks are a supply-side indicator, not a standalone signal for crop prices or agricultural-equity returns. Prices also respond to expected harvests, demand, exports, weather, policy, logistics and global supply. A larger inventory number may add context to those factors, but does not establish what fertilizer prices, company margins or shares will do. Company filings and presentations describe risks and management views; they do not supply a quantified prediction of future performance.

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.

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