Date: 2026-03-03 | Analyst: wsm007 | Type: Supplementary Analysis
| Customer | Evidence | Confidence |
|---|---|---|
| Amazon (AWS) | Named in SEC warrant filing ($201M cumulative threshold), CFO named on Q3 FY25 call, AWS CEO LinkedIn purple cable photo | Confirmed |
| Microsoft | Barclays analyst named (CEO unchallenged), HiWire SWITCH press release quotes MSFT exec, Needham analyst confirmed, SemiAnalysis 2023 report | Confirmed |
| xAI | CEO named at Barclays conference (Sept 2025), Colossus 2 purple cable photos from Musk, Needham analyst confirmed | Confirmed |
| Meta | CEO confirmed at Goldman conference ("purple cables... all NVIDIA gear"), OCP Summit rack display | Confirmed |
| Oracle | CEO named at Barclays (ZF Optics customer, links too long for AEC), co-chair OCP Optics Reliability Workstream | Confirmed (ZF Optics, not AEC) |
| No direct evidence found | Speculative (likely 5th hyperscaler) |
Key sources:
| Customer | Q3 FY25 (Jan-25) | Q4 FY25 (Apr-25) | Q1 FY26 (Jul-25) | Q2 FY26 (Oct-25) | Q3 FY26 (Jan-26) | QoQ Q3 | 4Q Growth |
|---|---|---|---|---|---|---|---|
| Total | $135M | $170M | $223M | $268M | $407M | +52% | +201% |
| Amazon (AWS) | ~$81M | ~$104M | ~$74M | ~$80M | ~$130M | +63% | +61% |
| xAI | ~$7M | ~$20M | ~$78M | ~$54M | ~$159M | +196% | +695% |
| Microsoft | ~$20M | ~$19M | ~$45M | ~$67M | ~$69M | +3% | +245% |
| Meta | — | — | ~$10M | ~$32M | ~$33M | +3% | N/A |
| Google? (5th) | — | — | — | ~$5M | ~$8M | +60% | N/A |
| Others/IC/Optical | ~$27M | ~$27M | ~$16M | ~$30M | ~$8M | -73% | -70% |
| Customer | Q3 FY25 | Q4 FY25 | Q1 FY26 | Q2 FY26 | Q3 FY26 |
|---|---|---|---|---|---|
| Amazon (AWS) | ~60% (#1) | 61% (#1) | 33% (#2) | ~30% (#1) | 32% (#2) |
| xAI | ~5% | ~12% (#2) | 35% (#1) | ~20% (#3) | 39% (#1) |
| Microsoft | ~15% (#2) | 11% (#3) | 20% (#3) | ~25% (#2) | 17% (#3) |
| Meta | — | — | ~4% | ~12% (#4) | ~8% |
| Google? (5th) | — | — | — | ~2% | ~2% |
$7M → $20M → $78M → $54M → 159M.MostvolatilecustomerrampinanycompanyIfollow.Colossusbuildoutcomesinwaves—massiveordersperdeploymentphase, thenpause, thensurge.Q2 → Q3jumpof+105M QoQ drove most of the $139M sequential revenue add. Brennan's "quite a large increase" was diplomatic.
$81M → $104M → $74M → $80M → 130M.DippedQ1 − Q2(AWSdeploymentcycle), surgedQ3. 500M+ annual run-rate. $201M cumulative warrant fully vested — relationship deep and multi-year. Uses AECs for both back-end and front-end connections.
$20M → $19M → $45M → $67M → $69M. Steady, predictable, upward. "First to ramp" customer provides baseline revenue. Share declining in % terms (15% → 17% of a much larger base) because others grow faster. In absolute dollars: 3.5x in four quarters. Front-end AEC adoption extending to back-end AI clusters.
Crossed 10% briefly in Q2 (32M), heldflat(33M) in Q3. OCP Summit and Goldman conference confirm real engagement. Potential next xAI-type surge if Llama infrastructure buildout accelerates.
When top-3 = 88%, it's because xAI's orders are so massive and lumpy they periodically dominate the mix. If Colossus 2 build completes and orders pause, ~$159M could drop to $50-80M in a single quarter. That's the real risk embedded in the 88% number.
Bull: Four confirmed hyperscalers ramping simultaneously, 5th starting. Amazon and Microsoft provide steady baseline. xAI lumpiness masks the fact that ALL customers are growing independently. If Meta follows xAI's trajectory with a 6-month lag, another $100M+ quarterly customer is emerging.
Bear: xAI concentration is extreme and unpredictable. One Colossus build pause = ~$100M quarterly revenue swing. "Diversification" narrative is partially illusion — three customers do 88% and the lumpiest one drives QoQ variance.
WSM verdict: Bull case stronger because all four customers are independently growing. xAI lumpiness creates volatility, not vulnerability. Infrastructure buildouts take years. But need Meta to cross $50M/quarter and 5th hyperscaler to reach 10% before concentration problem is solved.
| Facility | Status | GPUs | GPU Type | Power | Timeline |
|---|---|---|---|---|---|
| Colossus 1 | Operational | ~230,000 | H100/H200 + 30K GB200 | ~300 MW | Complete |
| Colossus 2 | Ramping | ~550,000 (target) | GB200/GB300 Blackwell | ~1.1 GW (target) | GPU install Q1-Q3 2026; full power Q2 2027 |
| Building 3 (MACROHARDRR) | Converting | ~200-300K (est.) | Blackwell / next-gen | ~500 MW | Conversion started Q1 2026 |
| Total Target | ~1,000,000 GPUs | ~2 GW |
Funding: $20B Series E (Jan 2026), $10B round (Sep 2025), NVIDIA $2B equity stake, Tesla $2B stake. Stated 2026 infrastructure spend: "at least $30B."
CRDO revenue implications:
→ xAI demand runway: 4-6 more quarters of elevated orders (through mid-FY28), with possible brief dips between build phases.
| Metric | CY2025 | CY2026 | CY2027 |
|---|---|---|---|
| Total CapEx | ~$105B | $200B guided | TBD (capacity doubling) |
| Installed IT Capacity | ~15 GW | Ramping | >31 GW target |
| Trainium2 Deployed | ~500K (Rainier) | Expanding | Trn3/Trn4 transition |
| Trainium3 | Launched Dec 2025 | 80% production by end-2026 | GA |
| NVIDIA GPU clusters | Active (P5/P6) | GB200 + Blackwell | Vera Rubin |
Key facilities:
CRDO revenue implications:
→ Amazon demand runway: Multi-year, steadily growing. The $200B capex year is just starting. Expect Amazon to be a $600-800M annual CRDO customer by FY28.
| Metric | FY2025 (Jun) | FY2026 (in progress) | FY2027 |
|---|---|---|---|
| Total CapEx | ~$88B | $120-145B tracking | TBD |
| H1 FY2026 CapEx | — | $72.4B (already spent) | — |
| Maia 200 | In development | Launched Jan 2026 (Iowa) | 2nd-gen in dev |
| Datacenter footprint | 400+ DCs, ~2GW | Targeting 80% capacity increase | Doubling vs FY2025 |
Key dynamics:
CRDO revenue implications:
→ Microsoft demand runway: Steady growth, power-paced. Expect $80-100M/quarter by FY27, $100-120M by FY28. The most predictable of the four customers.
| Metric | CY2025 | CY2026 | Long-term |
|---|---|---|---|
| Total CapEx | $72.2B | $115-135B guided | "Tens of GW this decade" |
| GPU Equivalents | ~600K H100-eq (end-2024) | Millions (NVIDIA deal) | Multi-GW clusters |
| Prometheus (Ohio) | Under construction | Coming online 2026 | 500K GPUs, 1GW |
| Hyperion (Louisiana) | Land acquired | Breaking ground | Up to 5GW by ~2030 |
| NVIDIA Deal | — | "Millions" of Blackwell + Rubin | Tens of billions $ |
Key dynamics:
CRDO revenue implications:
→ Meta demand runway: Accelerating. $33M today → $80-150M/quarter by mid-FY27 as Prometheus comes online. Hyperion extends the runway through FY30+. This is the next big ramp.
No confirmed AEC relationship. Currently ~$8M/quarter. Google's TPU architecture uses custom interconnects (OCS + optical), which may limit AEC adoption vs NVIDIA-based hyperscalers. However, Google does deploy NVIDIA GPU clusters for some workloads, and those would use standard Ethernet networking with AECs.
→ Small but could grow if Google expands NVIDIA GPU deployments. Not a material driver near-term.
| Customer | Q3 FY26 Run-Rate | FY27 Est (Quarterly Avg) | FY28 Est (Quarterly Avg) | Buildout Driver |
|---|---|---|---|---|
| xAI | $159M | $100-140M | $80-130M | Colossus 2 completion → Building 3 ramp. Possible dip between phases. |
| Amazon | $130M | $150-200M | $180-220M | $200B capex, capacity doubling. Steady, predictable growth. |
| Microsoft | $69M | $80-100M | $100-120M | Power-paced expansion. 1.6T upgrade cycle. Most predictable. |
| Meta | $33M | $60-120M | $100-180M | Prometheus online 2026. NVIDIA Spectrum-X deal. Hyperion begins. |
| Google/Other | $16M | $20-40M | $30-60M | Speculative. Depends on NVIDIA GPU cluster expansion. |
| New products (ZF Optics, etc.) | ~$0M | $50-100M | $100-200M | ZF Optics FY27, ALCs/OmniConnect FY28. |
| Total | $407M | $460-700M | $590-910M | |
| Annualised | $1.63B | $1.84-2.80B | $2.36-3.64B |
Fleming guided FY27 to "nearly $2B" (>50% YoY from ~$1.33B). My per-customer build suggests $1.84-2.80B is the range, with $2.0-2.2B as the central case. The upside comes from Meta ramping faster than expected and ZF Optics exceeding "material component" guidance.
1. The infrastructure buildout is not peaking — it's accelerating.
2. Each customer is at a different stage of their buildout cycle.
3. Custom silicon doesn't reduce AEC demand.
4. The demand staggering makes Fleming's "mid-single-digit sequential quarterly growth" conservative.
-wsm (Long CRDO 11.0% equity + 2.8% LEAPS Jan'28 $115C)