We revised our prior assumption that proprietary InfiniBand would hold >80% of back-end AI training fabrics through FY26 after verified hyperscaler Ethernet switching deployments, deferred revenue growth at Arista (ANET), and Broadcom (AVGO) AI Ethernet silicon shipments proved faster commercial crossover.
Transparently documents an evidence-driven revision where primary 10-Q/10-K deferred revenue and hyperscaler architecture disclosures disconfirmed our narrower initial switching share ceiling.
Arista Networks (ANET) Form 10-K and quarterly filings documented surging product deferred revenue and raised AI back-end + front-end Ethernet switching revenue targets backed by production hyperscaler cluster trials transitioning to scale.
Broadcom Inc. (AVGO) confirmed rapid shipment growth of Tomahawk 5 (51.2 Tbps) and Jericho3-AI Ethernet fabric silicon across hyperscale AI clusters seeking multi-vendor open-standard fabrics.
NVIDIA Corporation (NVDA) simultaneously expanded its own Spectrum-X Ethernet AI networking platform into multi-billion-dollar annualized run-rate revenue, confirming that even the InfiniBand leader recognizes hyperscaler Ethernet migration.
Our original model underestimated how aggressively hyperscalers (led by META and MSFT) would deploy RDMA over Converged Ethernet (RoCEv2) and scheduled fabric congestion control ahead of final Ultra Ethernet Consortium specs to avoid single-vendor switching lock-in. Even more telling: NVDA scaling Spectrum-X Ethernet proves the TAM expansion is shifting toward Ethernet across both merchant silicon (AVGO/ANET) and bundled systems.
The debate is no longer "InfiniBand vs. Ethernet," but rather market-share split inside AI Ethernet between Arista/Broadcom merchant white-box/EOS architectures and NVIDIA Spectrum-X bundled racks.
While Ethernet won the protocol debate faster than expected, ANET still derives roughly one-third of total revenue from just two hyperscale titans (Meta and Microsoft per 10-K concentration footnotes). If NVIDIA bundles Spectrum-X Ethernet switches directly alongside Blackwell rack allocations, Ethernet protocol victory does not automatically guarantee unchallenged margin capture for standalone switch vendors.
ANET top-two customer concentration revenue declining YoY in annual 10-K footnote disclosures or gross margin slipping below 61% on white-box ODM competition.
ANET prices ±7.9% around quarterly prints due to lumpy hyperscaler acceptance timing on deferred revenue.
Monitored via quarterly ANET product deferred-revenue balances and AVGO AI networking revenue mix.
| Symbol | Status | Setup Structure | Spot | Trigger | Invalidation | Pre-Published Rule / Audit Note |
|---|---|---|---|---|---|---|
| META | DEVELOPING | Relative-Strength Leader Pullback Shelf | $614.99 | $628.52 | $583.01 | Daily RTH close >= $628.52 resuming primary uptrend above prior swing high. |
| AVGO | DEVELOPING | Custom ASIC Base Flag Continuation | $326.08 | $335.21 | $308.47 | Daily RTH close >= $335.21 clearing upper consolidation rail. |
| NVDA | DEVELOPING | 50D SMA Consolidation Breakout | $204.64 | $211.19 | $192.77 | Daily RTH close >= $211.19 on >= 1.15x 20D avg dollar volume while holding above 50D SMA ($221.75). |
| ANET | TRIGGERED | 800G Ethernet Post-Revision Reclaim | $184.22 | $182.01 | $170.96 | TRIGGERED: Reclaimed 50D pivot aligned with Mara Quenwick AI Ethernet revision; holding above invalidation floor. |
Original thesis projected proprietary InfiniBand would retain >80% share of back-end AI training cluster fabrics through FY26.
Added Broadcom Tomahawk 5 shipment data and NVIDIA Spectrum-X Ethernet revenue disclosures showing accelerating hyperscaler Ethernet trials.
What Changed Our Mind Revision: Upgraded AI Ethernet back-end switching adoption curve after Arista Form 10-K deferred revenue and multi-cluster production rollouts disconfirmed our slower FY26 crossover assumption.