Four companies buy 85% of America's fed cattle. The Justice Department is investigating whether that costs you money. USDA's own data cuts both ways.

Two things are on the public record at once. Four companies buy most of America's cattle. And the US government is investigating them. On May 4, 2026, Acting Attorney General Todd Blanche announced at a press conference that the Justice Department is investigating potential antitrust violations in the US cattle and beef markets. Blanche said the department had reviewed more than 3 million documents and contacted hundreds of ranchers, cattlemen, producers, and processors since November 2025. The four firms under scrutiny — Tyson Foods, Cargill, JBS USA, and National Beef — are, in Blanche's framing, the packers that control roughly 85% of US beef processing; USDA's own measured figure, discussed below, is the four-firm 85% share of steer-and-heifer purchases in 2019. The probe follows Executive Order 14364, signed December 6, 2025, which directs the DOJ and the FTC to investigate anti-competitive behavior in the food supply chain, naming meat processing as a sector of concern. Officials said the inquiry could lead to civil enforcement or criminal charges. The concentration is measured, not alleged. USDA's Economic Research Service puts the four-firm share of US steer-and-heifer purchases at 36% in 1980, 81% in 1995, and 85% in 2019 — the exact metric and vintage the rest of this piece uses for "85%". Press accounts and farm groups commonly date the climb to roughly 25% in 1977, a figure that circulates in advocacy and coverage but does not appear in the ERS series ^mmodeled. Ownership is a public fact, and the two are different: JBS is a Brazilian company, headquartered in São Paulo; National Beef is a US company majority-owned by Brazil's Marfrig; Tyson and Cargill are US-based and US-owned. The farmer's share of the retail dollar is measured too, in a separate USDA product. In USDA's Meat Price Spreads series, the farmer's share of the retail beef dollar was 37.3% in 2020 and 53.5% in 2025. Across 2025 and the first half of 2026, the monthly farmer's share ranged from 50.4% (November 2025) to 56.5% (May 2025). The 5-market steer price nearly doubled over the same window, from $108.65 per hundredweight in 2020 to $222.56 in 2025.

Read one number at a time and the story tells itself: concentration up, beef prices up, the DOJ investigating. After a series on a 75-year-low herd and record retail beef, the reader is primed to close the loop — four firms, one price, someone is being squeezed. The whole record does not close it that cleanly. Concentration climbed for four decades. USDA's own figures show the four-firm share of steer-and-heifer purchases rising from 36% in 1980 to 85% by 2019. That trajectory is the spine of the investigation and the reason the four companies are named — as measured holders of market share, and as subjects of a confirmed public probe. Nothing here establishes that any of them fixed a price or broke a law. That is the investigation's question, not this article's finding. The second measured number complicates the intuition. If a concentrated middle were quietly starving the men who raise the cattle, the farmer's share of the retail dollar should be shrinking. In the current data it is doing the opposite: 37.3% in 2020, 53.5% in 2025, with the cattle price itself nearly doubling. USDA's longer record shows the farmer's share fell for much of the 2000s and 2010s — the trend that built the political case — then reversed sharply as the herd tightened. Both movements are real. They point in different directions, and they belong to different questions. So the honest read is narrow. The concentration is high and rose over decades. The farm-to-retail spread and the farmer's share have swung widely over these years, movement cattle-market analysts tie to the herd cycle and packer capacity ^sspeculative. These data cannot isolate whether four decades of consolidation, or a herd at a 75-year low, is driving the current spread — no competing predictors were modeled here, and correlation across a single cycle is not cause ^sspeculative. USDA's ERS says as much in its own voice: its 2024 review found "only limited evidence" that high packer concentration caused reduced livestock prices in the 1980s and 1990s, and framed the post-2015 spread widening as a product of concentration and limited plant capacity together, not concentration alone [verified, USDA ERS]. The causal question is precisely what the DOJ says it is examining. It is not settled by the share.

The strongest counter is that the concentration story explains almost none of the current spread — and that the herd shortage explains most of it, with no collusion required. Start with throughput. The same 75-year-low herd behind record retail beef also means fewer cattle to slaughter. When animals are scarce, packing plants with fixed capacity compete harder for each head, which would push the price paid to ranchers up, not down ^sspeculative. The data are consistent with that reading: the 5-market steer price nearly doubled since 2020, and the farmer's share of the retail dollar rose to 53.5%. A concentrated buyer with pricing power over a scarce input would, in standard models, be expected to widen its own margin ^sspeculative — yet the farm end of the spread compressed as the herd shrank. That pattern fits a supply shortage more cleanly than a squeeze. The packers' cyclical margins point the same way. At the May 4 press conference, industry participants noted the packing sector had lost money in nearly every month of the prior 18, squeezed between high cattle costs and what retailers would pay [industry claim, on-record at the conference — not independently verified]. Packer margins swing hard with the cattle cycle; a wide retail spread in a shortage is not evidence of a wide packer profit. And the retail number itself is a mix — boxed-beef cutout composition, imported lean trimmings that backfill scarce domestic supply, and processing and retail costs all sit between the steer and the shelf ^sspeculative. What the counter cannot do is retire the antitrust question. High concentration is real and rose for forty years. Concentration that looks benign across a shortage can still suppress competition in a different phase of the cycle — the exact concern USDA has flagged for the post-2015 period. The farmer's rising share today does not prove the market is competitive, any more than the concentration proves it is not. On this data the two readings are close to balanced, and the tie is what the investigation exists to break.

From the ranch, the two numbers land differently than the headline suggests. The cattle price is near a record and the share of the retail dollar is the best in years — and yet the herd is the smallest since 1951, so there are fewer animals to sell into that strong price. A good price on a thin herd is not the same as a good year. From the packing floor, the frame is a margin squeezed from both ends: record cattle costs paid in, retail resistance at the shelf, and losses reported across most of the last 18 months [industry claim, not independently verified]. From the checkout, none of that shows — only that ground beef and steak keep setting records. There is a non-US angle the record makes plain, and the two firms are not the same case: JBS is a Brazilian company, headquartered in São Paulo, while National Beef is a US company majority-owned by Brazil's Marfrig. Executive Order 14364 explicitly ties food-supply competition to national security and foreign control. Whatever the antitrust facts turn out to be, the ownership fact is that a large share of American cattle is bought by companies answerable, in part, to shareholders abroad.