Hyperscaler Capex Tracker Q2 2026
Microsoft, Google, Meta, Amazon, and Oracle combined capex reached $98B in Q2 2026, on track for $400B+ annual.
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Research Telemetry
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Three structural views. (1) Inference vs training split: Nvidia dominates training; AMD takes meaningful share in inference where ROCm maturity is sufficient and per-dollar performance favors MI300/MI350. Expect AMD to reach 12–18% accelerator share by end-2026. (2) Software moat: CUDA is still 18–24 months ahead in compiler optimization, library ecosystem, and developer mindshare. AMD's bet is open-source acceleration via ROCm + Triton + vLLM, which is closing the gap faster than expected. (3) System sales: Nvidia is increasingly a systems company (GB200 NVL72, DGX), capturing networking and integration margin. AMD's pending acquisition strategy (ZT Systems) is the parallel response. Valuation: Nvidia carries higher quality but full multiple; AMD offers more upside if MI350 closes the training gap and Instinct hyperscaler wins compound. Portfolio approach: overweight Nvidia for AI training and systems exposure, hold AMD as the highest-conviction catch-up trade in inference.
Deep Analysis
The AI infra cycle has crossed from a chip-supply problem to a power-supply problem. The strategic playbook is shifting from buying GPUs to securing electricity, packaging capacity, and custom-silicon optionality.
1 · Power is the binding constraint
U.S. data-center power demand is projected to triple by 2028. Grid interconnect queues exceed six years in key markets. Hyperscalers are responding with nuclear PPAs, behind-the-meter gas turbines, and geographic dispersion to markets with surplus capacity.
2 · Nvidia's moat is eroding slowly
Nvidia retains ~85% share but custom silicon and AMD now account for ~15% of inference. CUDA's software lock-in remains the strongest moat; PyTorch+Triton+ROCm parity efforts are progressing but trail by 2–3 years.
3 · Packaging and memory are sold out
HBM3e and TSMC CoWoS are the binding constraints on actual unit shipments. Pre-paid multi-year contracts are the new procurement norm; spot supply effectively does not exist for hyperscale buyers.
4 · Networking is the next battleground
InfiniBand/NVLink dominate scale-up; Ultra Ethernet Consortium aims for parity on scale-out by 2027. AMD/Broadcom/Cisco/Meta backing makes UEC a credible challenger; outcome determines $30B+ of annual networking spend.
Hyperscaler quarterly capex ($B, top 5)
6-quarter trajectory
Data-center accelerator revenue share (2026E)
benchmark composite (0–100)
AI infra spend by stack layer
share of measured value (%)
Contradictions detected
Claim
Hyperscaler capex grew 60% YoY (SemiAnalysis).
Counter
Physical data-center capacity additions grew only 30–40% in same period; gap reflects pre-payments and inventory build (EIA).
Claim
CUDA moat remains durable (Nvidia narrative).
Counter
PyTorch 3.0 + Triton + ROCm parity now makes AMD MI350 viable for ~70% of training workloads (SemiAnalysis).
Key Points
Power has overtaken chips as the binding constraint on data-center buildouts.
Custom silicon hits 15% of inference share; first credible challenge to Nvidia dominance.
Nuclear PPAs are emerging as the new strategic asset class for hyperscalers.
Capex disclosures imply 60% YoY growth; grid data caps physical buildout at 30–40%.
Hyperscaler 2026 capex
$400B+
60% YoYMicrosoft+Google+Meta+Amazon+Oracle
Nvidia accelerator share
85%
−4pp YoYdata-center revenue
U.S. data center power share
5.6%
1.6pp YoYof total grid load
PJM interconnect queue
6+ years
vs ~2 years pre-AINorthern Virginia data center alley
Microsoft, Google, Meta, Amazon, and Oracle combined capex reached $98B in Q2 2026, on track for $400B+ annual.
U.S. data center electricity demand projected to reach 9% of total grid load by 2028, up from 4% in 2024. PJM interconnect queue at 6+ years.
Nvidia retains ~85% data-center accelerator revenue share; Blackwell Ultra ramps Q3 2026, Rubin in H2 2027.
Microsoft signed a 20-year PPA for the full output of Three Mile Island Unit 1, restarting by 2028 to power AI data centers.
Custom silicon now accounts for ~15% of inference workloads at hyperscalers; cost advantages of 2–4× on optimized workloads.
UEC 1.0 specification ratified; aims to match InfiniBand performance for AI scale-out by 2027. AMD, Broadcom, Cisco, Meta backing.
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