Amrize delivered the second full quarter of its life as an independent public company with a $3.49 billion top line, $986 million of adjusted EBITDA, and a 14% increase in diluted earnings per share, and told the market, in the same breath, that the demand picture is strong enough to raise full-year revenue guidance and weak enough on the cost side - oil-driven freight, diesel, and raw-material inflation running ahead of the price increases being phased in - to narrow adjusted EBITDA guidance. The quarter, in other words, is a clean test of the new company's stated thesis: that a North American building solutions platform built on scale, vertical integration, and ASPIRE-driven efficiency can grow organically at six-to-seven percent a quarter and protect margin through input-cost shocks by deploying pricing, surcharges, and procurement savings in sequence. Two of the three legs of that thesis held this quarter. The third - margin protection - didn't, at least not yet, and the stock is down roughly 29% from its February 52-week high of $65.94 to $46.58, in large part because the cost leg got harder. The thesis is being run in real time, and the market is pricing the run, not the destination.
The picture underneath that single sentence is dense. Building Materials - cement, aggregates, ready-mix, asphalt, two-thirds of the company - grew revenue 8.2% in the quarter and segment adjusted EBITDA 5.2%, on cement volume up 5%, aggregates volume up 6.5%, aggregates pricing up 4.0% on a constant-currency basis, and a fresh $425 million acquisition of PB Materials in West Texas (closed in Q1) layering in roughly $54 million of inorganic revenue. Building Envelope - roofing, insulation, wall systems, the legacy Firestone/Duro-Last/Malarkey book - grew revenue 9.4% in the quarter on commercial re-roofing and large data-center projects, but segment adjusted EBITDA fell 5.2% on price costs that ran ahead of price increases, with management explicitly guiding to a second-half "price-cost" recovery. The aggregate top line was lifted by $200 million of volume growth across both segments, $54 million of acquisition contribution, and $16 million of aggregates price; reported net income margin of 13.6% in the quarter (vs 12.9% a year ago) is a real, if narrow, operating improvement, but the adjusted EBITDA margin of 28.2% in the quarter (vs 29.0%) shows where the energy bill landed.
The other half of the quarter is capital. Amrize returned $502 million to shareholders in the three months ended June 30, 2026 - $197 million of buybacks against a freshly announced $1.0 billion, 12-month repurchase authorization, and $305 million of dividends that included the one-time $0.44-per-share special distribution declared in May and the first $0.11-per-share installment of the ordinary annual dividend. The board followed up on August 6 with a second $0.11 ordinary installment payable August 26. Capital expenditures totaled $244 million in the quarter ($520 million in the half), with the full-year guide unchanged at approximately $900 million. The company closed the quarter with $729 million of cash, $6.0 billion of gross debt, and $5.3 billion of net debt - a 1.7x net-leverage ratio against trailing-twelve-month adjusted EBITDA of $3.0 billion, well inside the 3.75x covenant in the credit agreement and consistent with the spin's stated low-leverage profile. The market cap at $46.58 is roughly $25.8 billion, putting the company at approximately 8.2x the midpoint of raised FY2026 adjusted EBITDA guidance of $3.1–$3.2 billion and 9.6x on an enterprise-value basis. This is a single-digit-multiple North American building-solutions compounder that, in its first six quarters as a public company, has chosen to allocate roughly $0.5 billion a quarter of capital to organic volume, inorganic footprint, ASPIRE savings, and direct shareholder return - a posture that is the most consequential decision the new management has made, and the one that will define whether the multiple holds or compresses.