Gerdau's Q3 2026: Profit Up 43% on a Shrinking Volume Base — What the Headline Number Hides

Gerdau's third-quarter 2026 profit growth is not a volume story. Volumes fell sharply — crude steel output down 6.2% and steel product sales down 14.8% year on year — yet net profit rose 43.4% and gross profit rose 56.4%. That combination only makes sense if prices and mix moved hard in the company's favour, and the segment breakdown shows almost all of that movement came from one region: North America.

The trade-press framing — "higher US steel prices" — is broadly correct, but it understates how lopsided the company has become and overstates the precision of the figures as reported. Gerdau reports in Brazilian reais. The US-dollar figures circulating ($3.506bn net sales, $293.264m net profit) are conversions at BRL 5.33/USD by the reporting outlet, not figures the company publishes. That matters for anyone benchmarking or modelling the results.

Reading the numbers correctly

Gerdau's own 3Q26 earnings release (Form 6-K, 27 October 2026) reports in BRL and shows a company with:

The 43.4% figure in the triggering report attaches to reported (corporate) net income of roughly R$1.563bn; Gerdau's own preferred adjusted net income grew 40%. The gap of a few percentage points is a definitional difference, and small FX effects, not a contradiction. The distinction is worth stating because the two measures tell slightly different stories about underlying profitability.

Equally, the "+3.9% net sales" in USD and Gerdau's "+4%" in BRL are not the same measurement — the USD rate embeds a different exchange rate against the 3Q25 base. For a company that earns most of its EBITDA in dollars but reports in reais, this is more than a technicality.

Where the profit actually comes from

The segment split explains the paradox of falling volumes and rising profit:

North America generated roughly four-fifths of group EBITDA from a little over half of sales. Gerdau's North American adjusted EBITDA was reported at R$2.912bn on a 27.7% margin — a margin more than 2.5 times the Brazil segment's ~10.7%. Brazil, by contrast, shipped almost as much steel as North America but earned barely a fifth of the EBITDA.

That is the real story: Gerdau is, in profit terms, a US rebar and long-products producer with a large Brazilian volume business attached. Investors who value it as a Brazilian steelmaker are looking at the wrong denominator.

Why volumes fell while prices rose

The 14.8% drop in steel product sales is large enough to demand explanation, and the release summary points to a mix of lower shipment volumes and a strong prior-year base. Two forces are plausible and consistent with the data (this is analysis, not company guidance): changing regional demand and the deliberate prioritisation of margin over tonnage in North America. When US long-product prices and import protection support realizations, producers can shrink volume and still grow absolute profit — a strategy visible in the segment's 27.7% margin.

The cost side reinforces it: production costs fell 3.2% in the USD-converted figures, but the company attributed the margin gain to prices outpacing rising local costs. In other words, cost inflation was real, especially in Brazil, and it was price, not cost control, that did the heavy lifting.

The balance sheet is doing quiet work

Less discussed but consequential: net debt/adjusted EBITDA fell to 0.58x from 0.69x, free cash flow was R$1.4bn, and 9M26 capex reached R$3.1bn — 66% of the R$4.7bn full-year guidance. Two rating outlooks moved positive (Fitch in July, S&P in October), and a dividend of R$0.34/share for Gerdau S.A. was declared for payment from 15 December 2026. A steelmaker delivering 20%-plus EBITDA margins with sub-0.6x leverage in a soft-volume year has genuine optionality — for M&A, buybacks (56.4m shares authorised, 84% of repurchased shares cancelled) or further North American investment.

What to watch

Three questions matter for the next two quarters:

1. Durability of US pricing. North America's 76% EBITDA share is the whole thesis. If US long-product prices normalise or import pressure returns, there is no offset large enough in Brazil or South America to hold group margins near 20%.
2. Brazilian volume recovery. The Brazil segment shipped 1.351 Mt in 3Q26, essentially flat quarter on quarter. A genuine domestic construction recovery would add high-margin upside; continued stagnation keeps the company dependent on one region.
3. The definitional fog. Trade-press coverage of Gerdau's results in converted USD obscures the FX translation that flatters or distorts year-on-year comparisons. Analysts should work from the BRL release and the 6-K exhibit, not the converted wire summary.

Bottom line: Gerdau's Q3 was an excellent quarter on profitability and a weak one on volume — a combination that is sustainable only as long as US realizations hold. The company's leverage is now low enough that the strategic question shifts from survival to capital allocation. The headline 43% understates the underlying 40% adjusted growth and, more importantly, hides that this is now a North American margin story with a Brazilian tonnage tail.