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MWH · HEAVY CONSTRUCTION OTHER THAN BLDG CONST - CONTRACTORS · 8-K · Item 2.02 · Aug 13, 2026

Revenue is booming—so why is the margin story getting worse?

Guidance raisedpartly known
2026 adjusted EBITDA midpoint raised to $495M from $445M
SOLV Energy, Inc. (MWH) — AllSight decodes this SEC 8-K in plain English, versus what the market expected.

The main surprise is a materially higher full-year profit outlook. SOLV lifted 2026 adjusted EBITDA guidance by $50 million at the midpoint, to $485–$505 million from $435–$455 million, while revenue guidance rose by $150 million at the midpoint, to $3.87–$3.97 billion from $3.72–$3.82 billion (Financial Outlook). The market already knew demand was strong and the Roberson Waite acquisition had been announced, so the direction was partly anticipated; the size of the EBITDA increase is the newer information.

MetricQ2 2026Q2 2025H1 2026H1 20252026 updated guidePrior guide
Revenue$951M$536M$1.628B$944M$3.87B–$3.97B$3.72B–$3.82B
Adjusted gross profit$145M$113M$269M$172M$620M–$660M$610M–$650M
Adjusted gross margin15.2%21.1%16.5%18.2%16.0%–16.6%16.4%–17.0%
Adjusted EBITDA$117M$86M$210M$120M$485M–$505M$435M–$455M
Adjusted EBITDA margin12.4%16.1%12.9%12.7%12.5%–12.7%11.7%–11.9%

Growth is substantially ahead of the prior operating baseline, but the quality of growth is mixed. Second-quarter revenue jumped 77% year over year and first-half revenue rose 72%, while backlog reached approximately $8.9 billion, up 44% year over year (Results of Operations; Financial and Business Highlights). That supports the higher revenue outlook and indicates the business is executing against a much larger project base.

Margins are the filing’s clearest offset. Second-quarter adjusted gross margin fell to 15.2% from 21.1%, and first-half margin fell to 16.5% from 18.2% (Results of Operations; Reconciliation of Adjusted Gross Profit). Management attributes part of the decline to unusually profitable 2025 repair work, mix changes, and a compensation reclassification that reduced reported gross margin by more than 60 basis points. Even after those explanations, the revised full-year gross-margin range is below the previous range, showing that the EBITDA upgrade depends more on scale, mix, and below-the-line savings than on expanding gross profitability.

The balance sheet is cleaner after the IPO, but cash conversion deserves attention. Term debt was eliminated, cutting interest expense sharply, while operating cash flow was only $46 million in the first half despite $210 million of adjusted EBITDA (Balance Sheets; Cash Flow statement; Reconciliation of EBITDA). Working-capital investment absorbed $132 million, and cash declined to $364 million from $395 million at year-end. Net income was also pressured by a $52 million one-time IPO-related compensation charge and an $11 million debt-extinguishment loss (Results of Operations; Income Statement). Net read: the raised outlook is a genuine improvement versus the company’s prior expectation, but the filing is not a clean margin or cash-flow beat.

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