Astec Industries' second quarter arrived with the company mid-stride on a two-acquisition build that has materially changed the shape of the business - and with the asphalt side of that build already showing the strain. Net sales of $408.1 million rose 23.6% to a new quarterly record, but the lift was almost entirely CWMF and TerraSource: the legacy organic base grew at a far more modest pace, and Infrastructure Solutions' book-to-bill fell to 89.5% on macro-driven caution among asphalt-plant customers. Adjusted EBITDA of $42.6 million, a 10.4% margin, was up 26% year over year, but the company used the print to cut full-year 2026 adjusted EBITDA guidance from $170–$190 million to $160–$175 million. The stock fell roughly 14% on August 5 - the worst reaction to a print Astec has had in a year - and the share price has now fallen roughly 35% from the $65.02 high it set on April 30, 2026. The question for the rest of 2026 is whether the guide cut is a one-time reset of the asphalt shipment timing, or the first sign that the M&A build is straining rather than compounding the operating business.
There is a useful, slightly underappreciated second read. Materials Solutions, the segment Astec bought into with the $252.6 million TerraSource deal that closed July 1, 2025, is the brightest part of the quarter. Segment net sales of $179.8 million rose 43.0% - and even after backing out the $40.6 million of incremental sales from TerraSource, the segment's organic growth was strong. Book-to-bill ran at 142.2%; implied orders rose 45.3% sequentially. The aggregate processing equipment market Astec is now addressing is benefiting from large data-center projects and resurgent aggregate demand, and the segment's adjusted EBITDA margin of 12.3% expanded 90 basis points year over year. The asphalt side - the legacy Infrastructure Solutions franchise - was the part that disappointed: implied orders fell 20% sequentially, the book-to-bill slipped below parity, and segment adjusted EBITDA margin compressed 130 basis points to 14.4%. The two segments are now telling different stories inside the same quarter, and the guide cut is a direct acknowledgment that the asphalt timing slip is real.
The two acquisitions also changed the balance sheet. Long-term debt of $365.4 million at June 30 - and a fresh $332.5 million term loan from the new 2025 Credit Agreement - means interest expense ran $7.1 million in the quarter, more than three times the $2.1 million of a year ago. The CWMF deal (closed January 1, 2026, $70.1 million cash) is the smaller of the two, but it lands in the Infrastructure Solutions segment and is part of why the segment's organic-versus-inorganic split is so wide. Backlog of $601.1 million, up 57.9%, is the most forward-looking number in the report - and after backing out the inorganic component, organic backlog is still up sharply, led by Materials Solutions' data-center-driven order book. At a reference price of $42.34 (August 13, 2026), the market is pricing Astec at roughly 7.6x mid-point FY2026 adjusted EBITDA, a discount to mid-cap specialty-industrial peers, with a 50x trailing GAAP P/E that the charges in the period make largely meaningless. The Q2 print is the first one where the question is no longer whether the M&A build works - it has, mechanically - but whether management can convert it into the organic-margin-and-growth recovery that supports the $160–$175 million guide.