Segment / end-market revenue mix
Reporting note. GFS reports a single operating segment for IFRS purposes (Note 31 of the FY25 20-F: “the Company has a single reportable segment and operating segment structure”). The “end-market” disclosure is a management-defined disaggregation for investor-visibility purposes and appears in MD&A — it is not a segment in the IFRS-8 sense. Caveats: there are no segment-level operating-margin disclosures, no allocated capex by end market, and no goodwill segment allocation. Margin commentary by end market is qualitative/inferred.
1. Five-year end-market revenue trend (per FY25 20-F MD&A)
GFS discloses five end-market buckets: Smart Mobile Devices, Automotive, Home & Industrial IoT, Communications Infrastructure & Data Center, and Non-Wafer Revenue. There is no separate Personal Computing segment; PC-related revenue is consolidated within Comm/Infra/DC and Smart Mobile.
| End market | FY25 ($M) | FY25 % | FY24 ($M) | FY24 % | FY23 ($M) | FY23 % | FY24→FY25 $Δ | FY24→FY25 %Δ |
|---|---|---|---|---|---|---|---|---|
| Smart Mobile Devices | 2,678 | 39% | 3,048 | 45% | 3,023 | 41% | −370 | −12% |
| Automotive | 1,410 | 21% | 1,206 | 18% | 1,046 | 14% | +204 | +17% |
| Home & Industrial IoT | 1,189 | 18% | 1,267 | 19% | 1,604 | 22% | −78 | −6% |
| Communications, Infrastructure & Data Center | 745 | 11% | 577 | 9% | 863 | 12% | +168 | +29% |
| Non-Wafer Revenue | 769 | 11% | 652 | 10% | 856 | 11% | +117 | +18% |
| Total | 6,791 | 100% | 6,750 | 100% | 7,392 | 100% | +41 | +1% |
Sources: FY2025 20-F MD&A “Revenue by End Markets” table (acc. 0001709048-26-000022, doc gfs-20251231.htm). FY24 and FY23 figures are restated within the FY25 20-F three-year comparative.
2. End-market commentary
2.1 Smart Mobile Devices — 39% (down from 45% FY24)
The largest end market by dollars ($2,678M FY25), but the largest source of revenue compression: −$370M / −12% YoY. This reflects the well-documented mature-node smartphone-RF / display-driver / power-management headwind — Chinese OEM share consolidation, inventory destocking that ran through 2024 into early 2025, and pricing pressure on 22FDX, 12LP/+ trailing-edge nodes used for the broader smartphone front-end. Within Smart Mobile, GFS is materially exposed to RF SOI (front-end modules supplying Apple, Qualcomm, Skyworks, Qorvo) and 22FDX (display drivers, audio codec) — both of which face TSMC and UMC competition at trailing-edge SiGe and ULP CMOS.
The GF strategy is to defend ASP via single-sourced design wins secured through Long-Term Agreements (LTAs). Per FY25 20-F: “our ability to enter into LTAs has diminished, and the focus of our commercial operations has shifted to building a wider funnel of potential customers across a breadth of end markets, aiming to secure more single-sourced design wins.”
Read. Smart Mobile is the revenue-base headwind; until smartphone units inflect or GFS captures content (5G mmWave RF FEM, sensor hub) on premium handsets, this segment is range-bound at $2.5–3.0B annually. The strategic thesis assumes Smart Mobile flat-to-down through FY26 then stabilizing as inventory normalizes.
2.2 Automotive — 21% (up from 18% FY24, 14% FY23)
The fastest-growing end market for two consecutive years and now the second-largest contributor: $1,410M (+17% YoY). The compound annual growth rate FY23 → FY25 is approximately +16% per year. Drivers:
- ADAS sensor proliferation (radar, camera ISP) at 22FDX and 55nm BCDLite power management
- ECU consolidation onto fewer, more capable SoCs (incremental wafer demand)
- Single-sourced LTA awards from major Tier 1s (per management commentary across 6-Ks)
- BCD Power process node attractive for traction-inverter / 48V architecture
GFS holds a high market share of automotive specialty foundry for sub-65nm body-control / infotainment SoCs vs. TSMC and Tower/Intel.
Read. Automotive is the structurally premium-margin end market; at 21% mix and growing, it provides the most durable margin tailwind. Mid-teens CAGR is sustainable through FY27 if global vehicle production stabilizes.
2.3 Home & Industrial IoT — 18% (down from 19% FY24, 22% FY23)
Two-year compression from $1,604M FY23 to $1,189M FY25 (−26% cumulative). Reflects the post-COVID destocking cycle in industrial / consumer Wi-Fi / smart-home / appliance MCUs. Bottom of the cycle appears to have passed in late 2024; FY25 is closer to flat sequentially. Mix includes 22FDX MCU + RF (Bluetooth, Wi-Fi 6/7) and mature 65/55/40nm logic for utility metering, industrial automation, and consumer appliance silicon.
Read. IIoT is flat-to-modestly-up from cycle trough; downside is largely priced in. The bull case here is Wi-Fi 7 + 5G NR-Light ramp through 2026.
2.4 Communications Infrastructure & Data Center — 11% (up from 9% FY24)
The smallest end market by dollars but the most strategically important to the photonics thesis. +29% YoY to $745M. Drivers:
- Data center optical (Marvell, Ayar Labs, NLM Photonics, LWLG-enabled customers) on Fotonix 45CLO 9WG silicon photonics
- High-speed SerDes / ASIC for 5G base station radio units
- Multi-port Ethernet PHY at 28nm
- Optical-engine wafer demand from hyperscaler co-packaged optics roadmaps
Per FY25 20-F: “Communications, Infrastructure & Data Center end market demands bandwidth and performance.” This is where the Fotonix process and the Lightwave Logic electro-optic polymer integration show up in revenue — though at this scale, photonics-attributable revenue is likely <$100M of the $745M (sub-15% of the segment). That is consistent with photonics being early-cycle: PDK released March 2026, customer ramps not yet at production volume.
Read. Comm/Infra/DC is the highest-strategic-leverage end market even though smallest by dollars. A doubling of this segment (from $745M to $1.5B by FY28) would shift overall revenue mix materially toward higher-ASP datacenter content — and is the load-bearing input to bull-thesis valuation.
2.5 Non-Wafer Revenue — 11% ($769M FY25)
Engineering services, NRE (non-recurring engineering), mask sales, and ancillary services. +18% YoY as the customer-design-engagement funnel strengthened. Higher-margin than wafer revenue (services-economics) but lumpy quarter-to-quarter. The 2025 acquisitions (MIPS, Tagore, AMF, InfiniLink) likely contribute incrementally to this line as IP / design-services revenue, though MIPS / AMF / InfiniLink combined were <1% of FY25 revenue per the 20-F internal-controls disclosure.
Read. Non-Wafer is the services-revenue layer that pads gross margin and validates the customer-engagement model. Watch for MIPS / Synopsys partnership revenue to meaningfully expand this line through FY27.
3. Quarterly cadence (Q4’24 — Q4’25, per 6-K earnings releases)
| Quarter | Net revenue ($M) | YoY $Δ | YoY %Δ | IFRS gross margin | Non-IFRS GM |
|---|---|---|---|---|---|
| Q4’24 | 1,830 | n/d | n/d | 24.5% | 25.4% |
| Q1’25 | ~1,585 ⚠ | n/d | n/d | n/d | n/d |
| Q2’25 | 1,688 | n/d | n/d | 24.2% | 25.2% |
| Q3’25 | 1,688 | −51 | −3% | 24.8% | 26.0% |
| Q4’25 | 1,830 | 0 | flat | 27.8% | 29.0% |
Q1’25 derived from FY total: Q1’25 = $6,791M − $1,688M − $1,688M − $1,830M = $1,585M ⚠ (computed; not directly stated in 6-K filings extracted to date — verify against Q1’25 6-K).
Q4’25 sources: 6-K acc. 0001709048-26-000012, doc globalfoundries4q2025earni.htm (filed 2026-02-11). Q3’25 sources: 6-K acc. 0001709048-25-000069, doc globalfoundries3q2025earni.htm (filed 2025-11-12).
4. Geographic revenue (Note 31, FY2025 20-F)
| Region | FY25 ($M) | FY25 % | FY24 ($M) | FY24 % | FY23 ($M) | FY23 % |
|---|---|---|---|---|---|---|
| United States | 3,395 | 50.0% | 3,713 | 55.0% | 4,262 | 57.7% |
| Europe, Middle East and Africa | 1,710 | 25.2% | 1,423 | 21.1% | 1,533 | 20.7% |
| Other | 1,686 | 24.8% | 1,614 | 23.9% | 1,597 | 21.6% |
| Total | 6,791 | 100% | 6,750 | 100% | 7,392 | 100% |
Geographic-mix shift: US revenue declined from 57.7% (FY23) → 55.0% (FY24) → 50.0% (FY25), while EMEA grew from 20.7% → 25.2%. This reflects (a) European OEM auto/industrial customer share gain, and (b) the Smart Mobile decline being concentrated in US-headquartered handset front-end customers (Qualcomm, Skyworks, Qorvo).
5. Customer concentration (Note 32, FY2025 20-F)
GFS earned more than 10% of total wafer revenue from three customers in FY25:
- Customer A — 16.4% of wafer revenue (15.7% FY24, 17.0% FY23). Likely AMD (legacy Polaris / Stratix substrate at GF; AMD Cross-License). Receivable balance: $343M end FY25, $176M end FY24.
- Customer B — <10% FY25 (10.7% FY24, <10% FY23). Likely Qualcomm or Apple front-end RF.
- Customer C — 13.9% FY25 (<10% FY24, <10% FY23). Single-source LTA win likely automotive Tier 1.
Read. Top-3 customers ~30%+ of wafer revenue. This is moderately concentrated for a foundry. The shift in Customer C (entered the >10% category in FY25) is a positive read on the LTA-driven design-win pipeline.
6. Forward outlook
Q1 2026 guidance (issued 2026-02-11): revenue $1,625M ± $25M. Implied FY26 revenue trajectory at quarterly run-rate of $1,625M × 4 = $6.5B; sell-side consensus per most recent aggregator reads is approximately $6.8–7.0B FY26 / $7.5B+ FY27. Implied YoY growth: low single digits FY26 → mid-to-high single digits FY27 as Comm/Infra/DC + Auto compound and Smart Mobile stabilizes.
Mix shift expected:
- Smart Mobile: likely flat at $2.6–2.8B
- Automotive: $1.6–1.7B (+15%) by FY26 YE
- Home/IIoT: $1.2–1.3B (recovery)
- Comm/Infra/DC: $850–950M (+15–25%) — photonics + AI-data-center pull
- Non-Wafer: $850–900M (MIPS + services lift)
Sources
- FY2025 20-F, acc. 0001709048-26-000022, filed 2026-02-27 — SEC EDGAR — primary source for all FY end-market revenue, geographic revenue, and customer-concentration disclosures.
- Q4 2025 6-K earnings release, acc. 0001709048-26-000012, filed 2026-02-11 — quarterly financials and Q1 2026 guidance.
- Q3 2025 6-K earnings release, acc. 0001709048-25-000069, filed 2025-11-12 — quarterly financials.
- Earlier 6-K releases (Q1 2025 / Q2 2025) — referenced but not yet primary-source-captured for this section; flagged for backfill.
Cross-references
- quarterly trend — full P&L quarterly trail
- margins and pricing — gross-margin trajectory by mix
- overview — customer-concentration narrative
- overview — TAM and end-market backdrop
- overview — Fotonix / Comm-DC link