MaxLinear, Inc. (MXL) | The Buildout — AI Infrastructure
The Verdict
MaxLinear designs communications systems-on-chip. In the AI buildout it supplies the data-movement silicon inside data centers: the PAM4 DSPs and SerDes that sit in 400G and 800G optical transceivers, the retimers and TIAs that carry signals over electrical cables, and storage accelerators that compress and move data. It does not make AI compute. It sells the plumbing that connects AI clusters, sitting one layer under the optical module vendors and two layers under the systems builders and hyperscalers.
| Market Cap | — |
| Revenue (TTM) | $569M |
| Revenue Growth | +50.5% |
| EBITDA Margin (TTM) | -5.2% |
| Net Debt | $75M |
| Earnings Beats | 4 of 7 |
| P/E (TTM) | — |
| EV/EBITDA (TTM) | — |
What We Like
- FY2026 optical data center revenue has been raised twice in two quarters — from $100M–$130M to $150M–$170M to the current guide — and management says it is all Keystone.
- Infrastructure revenue rose 145% YoY in Q2 2026 and is now the largest category. It was $26.561M in Q1 2025.
- Non-GAAP gross margin is guided to 60% at the Q3 midpoint, which management calls ahead of schedule, and non-GAAP operating income moved from 16% to 22% of revenue in one quarter against a 30–35% long-term target.
- Q3 2026 revenue is guided to roughly a 25–30% sequential step, with management citing order visibility of about six months.
- A next-generation wave is queued for 2027: Rushmore, Washington and Annapurna are sampling, the XGS-PON hyperscaler control-plane win is qualified for a 2027 ramp, and USB bridge controllers are design-won at two major hyperscalers.
What We’re Watching
- Rushmore timing. Initial 1.6T revenue is now 2027, slipped from 'production ramps beginning in late 2026.' Marvell's 1.6T optical DSP is already ramping and module makers are qualifying 1.6T in 2026.
- Customer concentration is expected to rise. There was no 10% customer in Q2 2026, but management expects a handful of customers to drive most volumes over roughly the next six quarters.
- Supply. There are no long-term supply contracts with most vendors including TSMC and UMC, and Vendor A was 50% of inventory purchases in Q1 2026. Input costs on wafer, packaging and test are rising.
- Governance. An 8-K filed 2026-06-01 titled 'Auditor change' was flagged material and negative in the source. The underlying text is not in the source material, so the reason is unresolved.
The thesis is strengthening on the reported numbers: two consecutive raises of the central forward figure, a Q2 guide delivered at the high end, and expanding margins driven by mix. The counterweights are structural rather than cyclical — the AI story is one product deep for at least four more quarters, the next generation has already slipped once, and supply is bought on rolling purchase orders instead of contract. The open question is the 2027 optical run-rate: management has raised 2026 but has given no 2027 figure.
Earnings Beat
MaxLinear reported Q2 2026 revenue of $168.8M, up 23% from $137.2M in the prior quarter and up 55% from $108.8M a year earlier. GAAP gross margin was 57.8% and non-GAAP gross margin 59.5%. The standout was guidance: management raised its FY2026 optical data center revenue outlook to $210M–$230M, the second raise in two quarters, and said it is all Keystone. GAAP EPS was $0.02, a return to GAAP profitability, against non-GAAP EPS of $0.35.
| Metric | Q2 FY2026 | Q1 FY2026 | Q2 FY2025 | YoY |
|---|---|---|---|---|
| Revenue | $169M | $137M | $109M | +55.1% |
| Gross margin | 57.8% | 57.5% | 56.0% | +180bps |
| EBITDA | $3M | −$8M | −$8M | −138.5% |
| EPS | $0.02 | $-0.51 | $-0.31 | −106.6% |
| Infrastructure revenue | ~$85M | ~$63M | n/a | +145% YoY |
The visibility is very good… It's going out on or about 6 months anyway. So naturally, that gives us the confidence to go and raise these numbers.— Steven Litchfield, CFO, 2026-07-23
Management tone: Management's language escalated across the two calls and in the same direction. In April the CEO called Q1 the beginning of a multiyear growth phase; in July he described an exciting inflection in the business trajectory. They also conceded the earlier optical guide had been conservative, volunteered that customer concentration will rise before it shows up, flagged cost inflation plainly, and owned the Rushmore timing slip with a technical explanation about longer qualification and interoperability cycles at higher speeds. On competitive position, the source's own read is that MaxLinear is a follower, not the leader, at 1.6 terabit, against two larger competitors.
Management Guidance
For Q3 2026 management guided revenue to $210M–$220M, GAAP gross margin to about 57%–60%, non-GAAP gross margin to 58.5%–61.5% with a 60% midpoint, non-GAAP operating expenses to $66M–$71M, and a diluted share count of about 99M. It guided growth from all four end-market categories with particular strength in infrastructure. For FY2026 it raised optical data center revenue to $210M–$230M, all Keystone, with no Washington or Annapurna revenue counted in 2026. Rushmore initial revenue is now expected in 2027, with ramps at one or two opportunities in the second half of that year.
Trajectory
Revenue was near flat sequentially in Q1, up 0.6%, then stepped up 23% in Q2, which is up 55% YoY, with Q3 guided higher again. The driver is mix: infrastructure supplied about 70% of the total sequential increase (estimated), and management says all optical growth is now 800G. Gross margin went from 57.5% GAAP in Q1 to 57.8% in Q2 and is guided to a 60% non-GAAP midpoint, which management attributes to a favorable shift toward infrastructure, where gross margins are historically well above the corporate average. Rising input costs on wafers, packaging and test are the offset.
The Model
The model projects FY+1 revenue of $760M with EBITDA of $71M, a 9.3% margin, and FY+2 revenue of $1,050.0M with EBITDA of $219M, a 20.9% margin. The five runs behind the FY+2 revenue median span $1,020M to $1,150M, a 12% spread. FY+1 rests on the Keystone 800G ramp and the FY2026 optical data center guide; FY+2 depends on Rushmore, Washington and Annapurna reaching volume, which management dates to initial revenue in 2027 and meaningful volume in 2028.
| Metric | FY2025 | Next FY (E) | Following FY (E) |
|---|---|---|---|
| Revenue | $468M | $760M | $1.1B |
| YoY Growth | — | +62.5% | +38.2% |
| EBITDA | −$62M | $71M | $219M |
| EBITDA Margin | -13.2% | 9.3% | 20.9% |
Projections are the median of 5 independent model runs. The model’s revenue sits 32.6% above analyst consensus.
For Q3 2026 management guided revenue to $210M–$220M, GAAP gross margin to about 57%–60%, non-GAAP gross margin to 58.5%–61.5% with a 60% midpoint, non-GAAP operating expenses to $66M–$71M, and a diluted share count of about 99M. It guided growth from all four end-market categories with particular strength in infrastructure. For FY2026 it raised optical data center revenue to $210M–$230M, all Keystone, with no Washington or Annapurna revenue counted in 2026. Rushmore initial revenue is now expected in 2027, with ramps at one or two opportunities in the second half of that year.
What Could Go Right — and Wrong
- Optical data center revenue tracks to the FY2026 guide and management adds a 2027 figure, turning the raised run-rate into a floor rather than a spike.
- Rushmore reaches initial revenue in 2027 and ramps at one or two opportunities in the second half, keeping the 1.6T socket open.
- Infrastructure mix carries non-GAAP gross margin from the 60% Q3 midpoint toward the 65% long-term target and operating margin into the 30–35% band.
- Panther revenue roughly doubles in 2026 and nearly doubles again in 2027, adding a second product line beyond optical DSP.
- Foundry and OSAT capacity scales with demand and input-cost inflation is passed through rather than absorbed.
- Rushmore slips again past the second half of 2027, and two larger incumbents absorb the early 1.6T sockets.
- Supply allocations move: there are no long-term contracts with most vendors, and one vendor took 50% of inventory purchases.
- Wafer, packaging and test costs rise faster than they can be passed along, flattening the gross-margin path.
- Revenue concentrates into a handful of hyperscaler or module-maker accounts, as management itself expects.
- Wafer prepayments and $219.177M of minimum purchase obligations become a working-capital drag if demand softens.
Looking Ahead
Over the next twelve months the story is the Keystone 800G ramp and whether the Q3 revenue guide is delivered. Behind it, Rushmore, Washington and Annapurna move through qualification for 2027 revenue, and the XGS-PON hyperscaler control-plane design win ramps beyond that. Management expects customer concentration to rise over roughly the next six quarters, and it has signed $219.177M of minimum purchase obligations, $129.556M of which falls in the remaining nine months of 2026, to secure supply against the demand it is guiding.
- Q3 2026Q3 results reported — Tests delivery of the Q3 revenue guide and the 60% non-GAAP GM midpoint.
- FY2026Panther revenue doubles — Storage accelerator revenue expected to roughly double in 2026.
- March 2027Singapore tax incentive expiry — Incentives effective through March 2027, conditional on thresholds.
- 2027Rushmore initial revenue — 1.6T PAM4 DSP initial revenue; ramps at one or two opportunities in 2H 2027.
- 2027–2028Washington and Annapurna volume — 200G TIA and retimer: initial revenue 2027, meaningful volume 2028.
- 2027 and beyondXGS-PON ramp — Hyperscaler control-plane design win qualified for a 2027 ramp and beyond.
Financials
Annual Summary
| Metric | FY2024 | FY2025 | TTM | YoY |
|---|---|---|---|---|
| Revenue | $361M | $468M | $569M | +29.7% |
| Gross Margin | 53.4% | 56.4% | 57.4% | +302bps |
| EBITDA | −$122M | −$62M | −$30M | +49.5% |
| EBITDA Margin | -34.0% | -13.2% | -5.2% | +2,073bps |
| Net Income | −$245M | −$137M | −$104M | +44.2% |
| Free Cash Flow | −$63M | $7M | $3M | — |
| Net Cash | — | — | — | — |
Key Ratios (Trailing)
- P/E TTM—
- EV/EBITDA TTM—
- EV/Revenue TTM—
- Price/FCF TTM—
- Gross Margin (TTM)57.4%
- EBITDA Margin (TTM)-5.2%
- Net Margin (TTM)-18.2%
- ROIC-9.3%
- SBC / Revenue11.8%
The Company
MaxLinear designs communications systems-on-chip. The 10-K describes the products as integrating radio frequency, high-performance analog, mixed-signal, digital signal processing, security engines, data compression and networking layers, and power management for broadband, mobile and wireline infrastructure, data center, and industrial applications. The AI linkage is product-specific: Keystone, a 5nm PAM4 DSP and SerDes, sits inside 400G and 800G optical transceivers and management says it drives essentially all current optical data center revenue. Panther storage accelerators with hardware compression sit in storage appliances. Rushmore, Washington and Annapurna extend the line into 1.6T optical and electrical links.
MaxLinear owns no manufacturing. It is fabless: wafers come from TSMC and UMC, certain products come from Intel on a turnkey basis, and assembly, packaging and test are handled by subcontractors including ASE, Greatek Electronics, SIGURD Microelectronics and Silicon Precision Industries. All facilities are leased — the Carlsbad, California headquarters at about 68,000 square feet with a lease running to December 2029, plus Irvine, California; Shenzhen and Shanghai, China; and Petah Tikva, Israel. Revenue is allocated by ship-to destination: Asia 77%, Europe 12%, the U.S. 10% and the rest of world 1%, with Hong Kong at 48%, Mainland China at 10% and Vietnam at 11%. Distributors accounted for 46% of net revenue in Q1 2026, up from 37% a year earlier.
Business Segments
Competitive Landscape
The source's read places MaxLinear in an effectively three-player PAM4 DSP market, and management claims Keystone is the only 5-nanometer SoC shipping in volume at 100 gigabits per lane. The company says it is comprehensively designed across all optical module players on 800G, which it frames as the footprint for 1.6T. The gap is at the next node: the source's read is that MaxLinear is a follower, not the leader, at 1.6 terabit against two larger competitors, and Marvell's 1.6T optical DSP is already ramping. The 10-K names Broadcom as a primary merchant semiconductor competitor.
- BroadcomThe 10-K names Broadcom as a primary merchant semiconductor competitor.
- Named in the 10-K as a competitor. The source's read-through has its 1.6T optical DSP business 'ramping rapidly' and TIAs and drivers on track toward >$1B annualized — the sharpest timing risk against Rushmore.
- Named in the 10-K as a competitor and listed separately in the supply-chain map as a customer; the source flags that tension. Read-through shows a record 1.6:1 book-to-bill and 10–20 active NPO projects.
- Named in filings; not discussed by the company. The source's read-through shows revenue of $5.5B, up 23% YoY, with data center revenue doubling and pricing increases started.
- Named in filings; not discussed by the company.
Supply Chain
MaxLinear sits one layer under the optical module vendors and two under the systems builders and hyperscalers. It is fabless, buying wafers from TSMC and UMC and turnkey products from Intel. No neighbor transcript in the source set names MaxLinear.
Related companies
See all Silicon Design companies → · How this layer works: Chapter 1, The Chip →
More on MXL: Earnings recap