New York, Jan 20, 2026, 07:35 (EST)
- Nvidia’s market cap has jumped to about $4.5 trillion, rivaling the economic scale of some countries
- The company is diving deeper into full AI systems, increasingly bundling networking gear into the mix
- Nvidia’s CFO reported an attach rate close to 90% for networking alongside AI system sales
Nvidia’s market cap has surged to roughly $4.5 trillion, leading data outlets to stack it up against entire countries. This underscores the intense focus of investment on AI infrastructure.
Nvidia’s valuation isn’t driven solely by chip sales. It’s also expanding into rack-scale systems—pre-built, data-center-sized units—and growing its high-margin networking hardware segment.
At CES 2026, Nvidia CFO Colette Kress said the “attach rate” — the share of customers buying Nvidia AI systems who also grab its networking gear — is closing in on 90%. This signals a shift in Nvidia’s growth, leaning more on the infrastructure supporting its chips rather than just the chips alone. (Attach rate measures how often an add-on sells alongside the main product.) Nasdaq
This shift matters because AI data centers require much higher network capacity than typical cloud environments. Training AI models means shuffling huge volumes of data rapidly between processors to avoid slowdowns. Scaling up model inference also hits tough bandwidth and latency hurdles.
Nvidia’s networking revenue hit $8.2 billion in Q3 of fiscal 2026, a staggering 162% increase year-over-year, data cited in a Motley Fool article on Nasdaq.com shows. The boost comes from NVLink, which links GPUs, plus InfiniBand switches and the Spectrum-X Ethernet platform.
Nvidia pointed to robust demand from leading AI data center operators. Meta, Microsoft, Oracle, and xAI are said to be building sizable facilities that will use its Spectrum-X Ethernet switches, according to the report.
The market is crowded by design. IDC data featured in the report shows revenue from ultra-fast 800GbE switches nearly doubled quarter-over-quarter in Q3 2025. Nvidia commands an 11.6% share of the data-center Ethernet switch market, behind Arista Networks and Cisco Systems.
A Motley Fool report dropped late Monday, flagging 2026 as another heavy spending year for the “hyperscalers” — the giant cloud providers powering global data centers. Based on FactSet Research and Goldman Sachs data, it estimates Microsoft, Alphabet, Meta, Amazon, and OpenAI might pour as much as $527 billion into capital expenditures this year. (Capex covers investments in long-lived assets like data centers and servers.) The Motley Fool
The analysis highlighted that Nvidia CEO Jensen Huang previously estimated the backlog—orders waiting to be fulfilled—at roughly $500 billion. At the same time, CFO Kress told investors the backlog is growing rapidly, with clients locking in multi-year buildouts.
The risk is obvious: if the AI data center buildout overshoots, spending might abruptly halt, leaving suppliers holding excess capacity and investors too bullish. Nvidia also faces the threat of major clients ramping up their own in-house AI chips, which could pressure pricing. Adding to the challenge, sustaining gains in networking may become harder as established players in switching and optics push back.
Nvidia’s current valuation rests on continued heavy investment in AI infrastructure. The firm aims to capture a growing share of each new data-center build by delivering the full suite: both compute power and the ultra-fast connections that drive performance.
