AI Infrastructure —
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What changed in the AI trade, and why it mattered.
Semicap strength collapsed from 100% to 33% in a week, with Applied Materials, Onto Innovation, and KLA all crossing below their 200 EMA.
A sub-sector that was uniformly above trend just a week ago now has only 3 of 9 names above it, and the fresh EMA crosses in the equipment names most levered to fab capex suggest the market is repricing semicap despite AI capex headlines elsewhere in the chain.
Overall AI infrastructure sector strength fell from 77% to 60% above the 200 EMA in a week, with networking, power, dc-infrastructure, and neocloud all weakening alongside semicap.
The decline is broad rather than confined to one link in the chain: networking dropped from 62% to 38%, power from 58% to 44%, dc-infrastructure from 67% to 50%, and neocloud from 100% to 50%, so the pullback in trend strength is a sector-wide rotation, not a single-name story.
Networking · Data-centre infrastructure · Power · Neoclouds
Compute and hyperscaler names are the holdouts, with compute strength at 89% and hyperscaler strength rising from 60% to 80% even as most other sub-sectors weakened.
The divergence points to capital still favoring the chip designers and the hyperscalers buying their output, even as the equipment, networking, and power names that build out the physical layer lose trend support.
Compute · Hyperscalers
Qualcomm rose 4.2% on a reported Amazon AI chip deal, while Meta advanced plans for proprietary chips including 2027 deployment of Arke and Astrid aimed at beating Nvidia on efficiency.
Both stories point to hyperscalers and merchant chip vendors pushing further into custom silicon, a trend that could pressure Nvidia's share of AI compute spend over time even as near-term demand for its chips remains strong per the TSMC 2nm story.
Compute · Hyperscalers· QCOM, AMZN, META, TSM, NVDA· Source 1· Source 2· Source 3· Source 4· Source 5
Networking saw a sharp single-day move as Ciena gained 4.6% while Corning and Coherent both crossed below their 200 EMA a day earlier, and sector strength fell from 62% to 38%.
The mixed signal, one networking name rallying hard while two others lose trend support and the group's overall strength nearly halves, suggests dispersion within networking rather than a uniform read on demand.
GE Vernova crossed below its 200 EMA as power sector strength fell from 58% to 44% on the week.
Power names are a proxy for the physical buildout supporting AI data centers, and a weakening trend picture here, even as Vantage Data Centers raised $2 billion for new data center development, points to a gap between announced capital commitments and market price action in the power supply chain.
Memory and servers held steady with 100% of names above the 200 EMA and unchanged on the week, even as Western Digital fell 3.5% on the day.
These two sub-sectors are the quiet spot in an otherwise weakening sector, showing no change in trend strength this week despite the single-day drop in Western Digital.
Memory · Servers· WDC
Published 16/09/2026, 07:01 UTC · claude-sonnet-5