Sterling Infrastructure, Inc. STRL
Sterling Infrastructure's growth narrative remains best-in-class—Q2 2026 revenue surged ~90% YoY to $1.17B with E-Infrastructure up 192%, backlog grew 116% to $4.3B, and management raised full-year guidance—but the stock still trades at 38.0x trailing PE, a 73% premium to the peer median of 21.9x, even after a sharp correction from ~$888 in late June to $534.40 as of 2026-08-19. The technical picture is damaged (22.5% below the 50-day MA of $689) though showing early stabilization signs (MACD histogram turning positive at +7.1, RSI at 40.6, price holding just above the 200-day MA of $516).
With margin mix concerns from the CEC acquisition tempering the earnings quality of explosive growth, the risk/reward is improved but not yet compelling enough to justify the premium multiple; a hold pending evidence of margin stabilization and technical repair is warranted.
What could go wrong
- Margin dilution from mix shift. Q2 2026's revenue surge was driven partly by CEC's lower-margin e-infrastructure work, and management acknowledged margin dilution; if segment margins fail to recover, the premium multiple compresses further.
- Valuation premium unwinding. At 38.0x PE and 4.77x PS—73% and 155% above peer medians respectively—any deceleration in growth or backlog conversion could trigger a sharper de-rating, especially with the stock already down ~40% from June highs.
- Insider selling signal. Over the trailing 24 months, insider net value was -$82.7M across 71 transactions, with the General Counsel selling 2,500 shares at $888 on 2026-06-25 and the COO disposing 6,559 shares at $536 on 2026-08-06, suggesting limited insider conviction at recent prices.
- Data center demand cyclicality. The thesis leans heavily on sustained data center and semiconductor construction; any slowdown in hyperscaler capex or AI infrastructure spending would directly hit STRL's highest-growth segment.
What would change my mind
Where this comes from: Seeking Alpha news article, 2026-08-11 · Seeking Alpha news article, 2026-08-08 · FMP annual fundamentals, fiscal year ended 2025-12-31 · peer_relative composite, as of 2026-08-19. Orin's read on STRL; not advice.
Twelve months actual closes to 2026-09-23 · actual filings
50-day average 200-day average · volume below
On file
All STRL filings| Form | Filed | What it says | Read |
|---|---|---|---|
| 10-Q | 4 Aug | Sterling Infrastructure reported revenue of $1.168 billion for the three months ended June 30, 2026, an increase of 90% year-over-year, and $1.994 billion for the six months ended… | read |
| 8-K | 3 Aug | Sterling Infrastructure, Inc. | read |
| 13G/A | 30 Jul | — | on file |
| 8-K | 10 Jul | Mark D. Wolf, General Counsel, Chief Compliance Officer, and Corporate Secretary of Sterling Infrastructure, Inc., notified the Company of his intention to retire later in 2026.… | read |
| 8-K | 8 Jul | Sterling Infrastructure, Inc. | read |
| 8-K | 9 Jun | Sterling Infrastructure, Inc. | read |
| 8-K | 21 May | Sterling Infrastructure, Inc. | read |
| 8-K | 12 May | Sterling Infrastructure, Inc. | read |
Largest holders · 13F Q2 2026
Money flow| Filer | Position | Of fund |
|---|---|---|
| Vanguard Capital Management | $1.1B | 0.0% of fund |
| Vanguard Portfolio Management | $1.1B | 0.0% of fund |
| Fmr | $987.1M | 0.0% of fund |
| State Street | $802.8M | 0.0% of fund |
| Geode Capital Management | $659.5M | 0.0% of fund |
| Invesco | $654.4M | 0.1% of fund |
95 filers · quarter ended Q2 2026 · positions, not flows
Insiders, last 24 months: 70 Form 4 filings, net −$82.7M. Of the 50 on hand, 0 were open-market purchases and 12 sales— the rest are grants, option exercises and tax withholding.
Ask Orin about STRL
Orin answers questions about STRL from its filings, transcripts and numbers — with the source behind every claim. Your own desk starts with 3 free days, card required.
Start 3 free days →Where it trades
| Metric | Now | Own median | Sector |
|---|---|---|---|
| P/E | 36.5× | — | 44.5× |
| EV/EBITDA | 21.7× | — | — |
| P/S | 4.57× | — | — |
| P/B | 11.6× | — | — |
18.2%
free-cash-flow growth every year for 10 years, discounted at 10%, is what today’s price implies — starting from $0.4B of trailing free cash flow. It is an assumption the market is making, not a forecast Orin is making.
What Wall Street published
$731
$510 – $950 · +47% against today's price
- 7 buy or overweight
- 2 hold
- 0 underweight or sell
The analysts’ consensus and their own ratings, not Orin’s. A target is a twelve-month opinion published by the firm that wrote it.
Against the companies it is compared to
| Company | Market cap | P/E | EV/EBITDA | Gross | Net | ROE |
|---|---|---|---|---|---|---|
| STRLSterling Infrastructure, Inc. | $16B | 36.5× | 21.7× | 23.6% | 12.5% | 37% |
| AYIAcuity Brands, Inc. | $9B | 19.8× | 12.0× | 49.3% | 10.3% | 17% |
| BLDRBuilders FirstSource, Inc. | $6B | 64.3× | 11.2× | 29.2% | 0.7% | 2% |
| HIIHuntington Ingalls Industries, Inc. | $11B | 16.1× | 12.2× | 12.6% | 5.0% | 13% |
| MLIMueller Industries, Inc. | $13B | 15.4× | 10.0× | 27.3% | 18.2% | 27% |
| TTEKTetra Tech, Inc. | $9B | 20.9× | 14.8× | 18.8% | 8.6% | 24% |
The median is of the 5 peers listed above and nothing else — check it against the column. This company trades 84.2% above it. The peer set is the vendor’s, so a company can appear here that a person would not have chosen.
What it has traded at
What its sector has traded at
Two scales, drawn separately on purpose: a sector median and one company’s multiple are not the same number and putting them on one axis invites a comparison neither series supports.
Every estimate on one scale
The vertical rule is the current price. Ranges and point estimates are the backend’s, published as they were calculated; an arrow means the estimate sits beyond this scale, and its number is on the right.