IDEX Corporation (IEX) | The Buildout — AI Infrastructure
The Verdict
IDEX designs and makes mission-critical components — pumps, valves, flow control, filtration, sealing and optical parts — and sells them into expensive systems, often as small-dollar content. Its AI-infrastructure link is indirect: behind-the-meter power generation and liquid-cooling flow control for data centers, high-purity fluid, gas and optical components for semiconductor fabs and process tools, and parts used in optical switching. The company does not sell AI and does not position itself as an AI company; the exposure is demand pulled through by customers' capital spending.
| Market Cap | — |
| Revenue (TTM) | $3.6B |
| Revenue Growth | +7.3% |
| EBITDA Margin (TTM) | 26.7% |
| Net Debt | $1.3B |
| Earnings Beats | 7 of 7 |
| P/E (TTM) | — |
| EV/EBITDA (TTM) | — |
What We Like
- Two guidance raises in the same fiscal year: FY2026 organic growth went from 1-2% to 3-4% to 5-6%, and adjusted EPS from $8.15-$8.35 to $8.70-$8.85.
- Order inflection: consolidated organic orders accelerated from +10% in Q1 to +28% in Q2, with HST at +47% and record orders over $1 billion.
- Mix shift: data center, semiconductor and space & defense now represent over 1/3 of HST revenue, and about 50% of HST's semiconductor portfolio is recurring revenue.
- Forward visibility: a big chunk of data-center Pneumatics business was booked in Q2 and is positioned for 2027; management says it has twice the business set up for the following year versus this point last year.
- HST margin flow-through reached about 40% excluding tariff refunds, versus a historical low-to-mid 30s; gross leverage fell to 1.9x from 2.1x, with liquidity over $1.1 billion.
What We’re Watching
- Order-to-revenue gap: HST orders grew +47% while HST revenue grew +12%, and customers are pre-booking capacity; management does not directly address the double-ordering risk.
- Legacy segments: FMT organic revenue +1% and FSDP -1% in Q2, with FMT margin -20 bps and FSDP -50 bps year over year — the beat-and-raise is largely an HST story.
- IEEPA tariff refunds are nonrecurring: they added $0.08 to EPS and 130 bps to EBITDA margin, and cut organic growth by 2%; management says the effect should be confined to Q2.
- Two September 8-Ks postdate the July call — 2026-09-03 (material agreement and new debt) and 2026-08-17 (officer change) — and are not described in the evidence.
On the evidence, IDEX's business direction has inflected: two consecutive guidance raises in one fiscal year, an order book that accelerated to +28% overall and +47% in HST, record orders over $1 billion, and a capex step-up aimed at 2027-2028 output. Management's own framing keeps it honest — it calls the durable-visibility portion a relatively narrow corridor and says much of IDEX still runs on quick lead times and rapid replenishment. The open question is whether the pre-booked orders convert into 2027 revenue at the pace management describes, or whether some of it is pull-forward that reverses.
Earnings Beat
IDEX reported Q2 FY2026 revenue of $920.6 million and gross margin of 46.4%, up 110 basis points year over year. Organic sales grew 5%, held back by 2 points of IEEPA-related customer rebates. Organic orders rose 28% and were a record over $1 billion, led by HST at +47%. Adjusted EPS was $2.32, up 12% year over year, and management said results were meaningfully ahead of the $2.07-$2.12 guide even excluding the $0.08 IEEPA benefit.
| Metric | Q2 FY2026 | Q1 FY2026 | Q2 FY2025 | YoY |
|---|---|---|---|---|
| Revenue | $921M | $887M | $865M | +6.4% |
| Gross margin | 46.4% | 44.9% | 45.3% | +110bps |
| EBITDA | $253M | $226M | $241M | +5.0% |
| EPS | $1.93 | $1.61 | $1.74 | +11.2% |
| Organic order growth | +28% | +10% | n/a | — |
| HST organic order growth | +47% | +17% | n/a | — |
We've kind of got twice the business set up for the following year than we had at this point last year.— CEO, 2026-07-29
Management tone: The Q1 FY2026 call was confident but guarded on the legacy industrial recovery, with management saying it was 'pretty reasonably guarded' and 'we are not seeing an inflection point.' By the Q2 call the tone shifted to measured confidence: management described both longer-cycle project orders and typical distribution order flow improving at the same time — 'both sides firing' — while repeating that the visible, durable portion is a relatively narrow corridor. Management was candid about isolating the nonrecurring IEEPA benefit and the acquired-business margin dilution, and declined to extrapolate the order strength fully into revenue.
Management Guidance
For FY2026, management guides organic growth of 5-6%, adjusted EBITDA margin of 27-27.3% and adjusted EPS of $8.70-$8.85. The Q3 2026 guide is 5-7% organic growth, 27-27.5% adjusted EBITDA margin and $2.20-$2.25 adjusted EPS. Segment outlooks were raised to 'approximate low double-digit' growth for HST and 'slightly up year-over-year' for FMT and FSDP. Capital expenditures were raised from $90 million to approximately $110 million, predominantly in HST, for 2027-2028 capacity. Share repurchases were reaffirmed at about $75 million per quarter through the rest of 2026, and free cash flow conversion of at least 100% was reaffirmed. The FY2026 effective tax rate of about 24% guided in Q1 was not repeated at the Q2 call.
Trajectory
Revenue has been roughly flat across the last four quarters — $879 million, $899 million, $887 million and $921 million — with trailing-four-quarter growth averaging about 7.4%. Margins moved up in Q2 FY2026: gross margin was 46.4% versus 44.9% in Q1 and 45.3% a year earlier, helped by productivity, volume leverage and tariff refunds. The change underneath is the order book: consolidated organic orders went from +10% in Q1 to +28% in Q2 and HST orders from +17% to +47%, which builds backlog but has not yet shown up in HST revenue growth of +12%. FMT (+1%) and FSDP (-1%) organic revenue were flat to down, so the improvement so far is concentrated in HST.
The Model
The model projects FY+1 revenue of $3,708.75 million with EBITDA of $1,010 million, a 27.225% margin, and FY+2 revenue of $4,061.9 million with EBITDA of $1,147 million, a 28.25% margin. The near-term anchor is the backlog management says is positioned for 2027 — a big chunk of data-center Pneumatics business booked in Q2, HST visibility into 2027, and 'twice the business set up for the following year' versus this point last year. FY+2 depends on the capacity being added now (capex of roughly $110 million, predominantly HST) coming online for 2027-2028 output, and on the recurring half of the semiconductor portfolio holding.
| Metric | FY2025 | Next FY (E) | Following FY (E) |
|---|---|---|---|
| Revenue | $3.5B | $3.7B | $4.1B |
| YoY Growth | — | +7.3% | +9.5% |
| EBITDA | $929M | $1.0B | $1.1B |
| EBITDA Margin | 26.9% | 27.2% | 28.2% |
Projections are the median of 4 independent model runs. The model’s revenue sits 5.7% above analyst consensus.
For FY2026, management guides organic growth of 5-6%, adjusted EBITDA margin of 27-27.3% and adjusted EPS of $8.70-$8.85. The Q3 2026 guide is 5-7% organic growth, 27-27.5% adjusted EBITDA margin and $2.20-$2.25 adjusted EPS. Segment outlooks were raised to 'approximate low double-digit' growth for HST and 'slightly up year-over-year' for FMT and FSDP. Capital expenditures were raised from $90 million to approximately $110 million, predominantly in HST, for 2027-2028 capacity. Share repurchases were reaffirmed at about $75 million per quarter through the rest of 2026, and free cash flow conversion of at least 100% was reaffirmed. The FY2026 effective tax rate of about 24% guided in Q1 was not repeated at the Q2 call.
What Could Go Right — and Wrong
- HST order growth holds near the Q2 pace and converts into revenue in 2027, validating the 'twice the business set up' claim.
- FMT's +11% order growth turns into above-1% revenue growth, releasing the high-30s to 40-ish percent flow-through management quantified.
- FSDP's BAND-IT aerospace blanket order and multiyear North American fire backlog produce durable revenue rather than a one-quarter bump.
- 8020 margin work at Muon, Micro-LAM and Mott lifts those units toward segment margins, and HST flow-through holds near 40%.
- Bolt-on M&A adds adjacent data-center, semiconductor or space/defense technology, extending the growth runway.
- A demand air pocket in data center, semiconductor or space & defense hits the concentrated cluster that is now over 1/3 of HST revenue.
- Pre-booked orders turn out to be double-ordering or pull-forward, and HST order-to-revenue conversion stalls.
- FMT and FSDP revenue stay flat to down, leaving the entire growth story dependent on one segment.
- The IEEPA benefit does not recur and comparison traps make Q3 and Q4 reported growth and margins look weaker.
- Life-sciences pressure persists, the optical-systems platform transition extends, or China pricing pressure spreads through more of the portfolio.
Looking Ahead
Over the next 12 months the tests are conversion and clean comparisons. IDEX must turn a record order book into revenue — HST orders grew 47% against 12% revenue growth — and show that the underlying trend holds after the nonrecurring IEEPA benefit rolls off. Management's stated checkpoints are FY2026 organic growth of 5-6%, adjusted EBITDA margin of 27-27.3%, capex landing near $110 million, and repurchases of about $75 million a quarter. Two September 8-Ks — a material agreement with new debt and an officer change — have not been described in the evidence and may need follow-up.
- 2026-10-16Quarterly dividend paid — $0.73/share; 128th consecutive regular quarterly dividend.
- Q3 2026Q3 results vs. guide — Organic 5-7%, EBITDA margin 27-27.5%, EPS $2.20-$2.25.
- Rest of 2026Buyback pace — About $75M per quarter reaffirmed, with flex around bolt-on M&A.
- FY2026Full-year guide test — Organic 5-6%, EBITDA margin 27-27.3%, EPS $8.70-$8.85.
- 2027Data-center order converts — Pneumatics data-center business booked in Q2 positioned for 2027.
- 2027HST backlog conversion — Management says twice the business is set up for 2027 vs. last year.
Financials
Annual Summary
| Metric | FY2024 | FY2025 | TTM | YoY |
|---|---|---|---|---|
| Revenue | $3.3B | $3.5B | $3.6B | +5.8% |
| Gross Margin | 43.3% | 44.5% | 44.7% | +127bps |
| EBITDA | $872M | $929M | $957M | +6.4% |
| EBITDA Margin | 26.7% | 26.9% | 26.7% | +17bps |
| Net Income | $505M | $483M | $520M | -4.3% |
| Free Cash Flow | $603M | $617M | $642M | — |
| Net Cash | — | — | — | — |
Key Ratios (Trailing)
- P/E TTM—
- EV/EBITDA TTM—
- EV/Revenue TTM—
- Price/FCF TTM—
- Gross Margin (TTM)44.7%
- EBITDA Margin (TTM)26.7%
- Net Margin (TTM)14.5%
- ROIC11.1%
- FCF Conversion67.0%
- SBC / Revenue0.8%
The Company
IDEX describes itself in its 10-K as 'a global applied solutions provider serving niche markets with mission critical components for everyday life.' It reports in three segments: Health & Science Technologies, which makes precision fluidics, pumps, sealing, filtration, optics and photonic components; Fluid & Metering Technologies, which makes pumps, valves, flow meters and fluid-handling systems; and Fire & Safety / Diversified Products, which makes firefighting equipment, rescue tools, BAND-IT banding and precision dispensing gear. The AI-infrastructure connection sits mostly inside HST — power-generation and liquid-cooling flow control, plus high-purity filtration, sealing and optics for semiconductor fabs and process tools.
The business runs through over 50 wholly-owned subsidiaries operating with a high degree of autonomy under a shared philosophy ('The IDEX Difference') built around the 8020 principle — a focus on the small share of products and customers that drive most of the results. Management says it deliberately sells small-dollar content into expensive systems, and that it is increasingly using 8020 as a growth-allocation tool, moving capital and talent toward the highest-growth platforms. Named sites include IH&S operations in Connecticut, California, Massachusetts, Washington, New York, Germany and Japan; Viking Pump in Cedar Falls, Iowa with locations in Canada, Ireland and England; and Fire & Safety operations in Florida, England, Ohio, Germany, North Carolina and China. Management still describes the model as asset-light even after the capex step-up.
Business Segments
Competitive Landscape
IDEX sells small-dollar content into expensive systems, a position the material describes as giving it specification-point stickiness and pricing resilience. In Q&A management argued the company is not simply riding secular waves, saying it develops technology and solutions with 'no real natural direct competitor, at least in terms of the technical solution' in many cases. The named competitive set spans industrial pump and fluid-handling makers, filtration and sealing suppliers, and diversified industrial conglomerates. Only two — Dover and Ingersoll Rand — carry documented filing quotes, and those quotes come from the competitors naming IDEX rather than the other way around.
- Dover (DOV)Documented competitor; Dover names IDEX in filing quotes.
- Ingersoll Rand (IR)Documented competitor; names IDEX in filing quotes. IR has called China the most challenged market from a pricing perspective.
- Crane (CR)Named in filings; not discussed.
- Parker-Hannifin (PH)Named in filings; not discussed.
- Xylem (XYL)Named in filings; not discussed.
Supply Chain
IDEX buys castings, ceramics, optics hardware, electronic components and purifier media, then sells flow control, filtration, sealing and optics into data-center power and cooling, semiconductor fabs and defense programs. No neighbor transcript mentions IDEX by name.
More on IEX: Earnings recap