Nebius (NASDAQ:NBIS | NBIS Price Prediction) just handed the AI infrastructure trade a $27 billion reason to rally. The Amsterdam-based AI hyperscaler announced a five-year agreement with Meta Platforms (NASDAQ:META) valued at up to $27 billion, and investors are reading it as a green light for everything connected to the AI data center buildout.
Consequently, Lumentum (NASDAQ:LITE) stock is up 6%, SanDisk (NASDAQ:SNDK) shares jolted 8% higher, and IREN (NASDAQ:IREN) stock catapulted 7% in Monday morning trading.
The deal matters beyond Nebius itself. Investors are now pointing to what they call a “three-counterparty validation” from Microsoft (NASDAQ:MSFT), Meta Platforms, and NVIDIA (NASDAQ:NVDA), all of which have committed to Nebius’s AI infrastructure platform. When three of the largest technology spenders on the planet converge on the same infrastructure provider, the market takes it as a signal about the entire supply chain, not just one company.
Lumentum: Optical Networking Rides the Wave
Lumentum stock is up approximately 6% today, trading around $657. The stock is already up 11% over the past week and 69% year to date, making today’s move part of a broader rerating of optical networking names.
Lumentum is the kind of company that benefits quietly until suddenly it doesn’t. It manufactures the optical and photonic components that physically move data inside AI data centers, the fiber-optic interconnects that let thousands of GPUs talk to each other at the speed of light. Every new hyperscaler commitment to AI infrastructure is, indirectly, a commitment to buying more of what Lumentum makes.
Lumentum was recently added to the S&P 500, which could potentially brings a wave of buying from index funds. As we covered on March 12, the S&P 500 inclusion is a major catalyst for Lumentum. Notably, Lumentum also rose 8% on March 10 as part of a broader optical-technology rally.
The fundamentals back the momentum. Lumentum’s Q2 FY2026 revenue came in at $665.5 million, up 65.5% year over year, with non-GAAP EPS of $1.67 beating the $1.4085 estimate by 18.57%.
Furthermore, the company’s Q3 guidance calls for revenue of $780 million to $830 million, implying more than 85% year-over-year growth. Lumentum CEO Michael Hurlston called the company’s products “mission-critical to the world’s AI leaders.”
With an OCS backlog above $400 million and a new multi-hundred-million-dollar CPO order deliverable in the first half of calendar 2027, the pipeline is real. Analysts carry a consensus target of $661 for LITE stock with 14 buy ratings and zero sells.
SanDisk: Memory Built for the AI Era
SanDisk is the biggest mover of the three today, up approximately 8% to around $715. The stock has surged 22% in the past week and is up by an astounding 202% year to date.
SanDisk’s business is simple to understand once you frame it correctly. AI models need to store and retrieve enormous amounts of data at extreme speeds. NAND flash memory is the medium that makes that possible, and SanDisk is one of the few companies with the scale to supply hyperscalers at volume. The Meta-Nebius deal tells the market that demand for that capacity is not slowing down.
SanDisk’s Q2 FY2026 revenue hit $3.03 billion, up 61.2% year over year, with data center segment revenue up 76% year over year. Q3 guidance calls for revenue of $4.4 billion to $4.80 billion with non-GAAP EPS of $12 to $14 and gross margins of 65% to 67%.
CEO David Goeckeler announced a strategic shift to multi-year data center supply deals, and SanDisk’s manufacturing capacity is fully booked with long-term hyperscaler contracts. Analyst consensus for SNDK stock sits at a moderate buy with an average price target of $719.
IREN: The Neocloud Betting on Both Sides
IREN stock is up approximately 7% to around $44.58 today, building on a 13.3% gain over the past week. IREN operates at the intersection of energy infrastructure and AI compute, running large-scale renewable-powered data centers that support both Bitcoin mining and GPU-powered AI cloud workloads.
The Nebius-Meta deal is directly relevant to IREN because it validates the neocloud model IREN is building toward. IREN secured a $9.7 billion GPU cloud services contract with Microsoft, and NVIDIA has invested $2 billion in Nebius Group, the company that just signed the Meta deal. When the biggest GPU maker on the planet backs a competitor in your space, it confirms the whole category is real.
IREN secured $3.6 billion in GPU financing for its Microsoft contract and is targeting $3.4 billion in annual recurring revenue by the end of calendar 2026. Moreover, IREN’s AI Cloud revenue nearly tripled sequentially in the most recent quarter to $17.3 million, still small but accelerating fast.
CEO Daniel Roberts described the current environment as the “strongest demand environment to date.” Analysts carry a consensus target of $80 on IREN stock, with 10 buy ratings against just one strong sell.
The Bigger Picture
A $27 billion infrastructure commitment from Meta Platforms isn’t just a one-quarter event. Rather, it’s a multi-year signal about where the largest technology companies intend to spend, and it ripples through every layer of the AI stack, from optical interconnects to NAND flash to GPU-powered cloud compute.
Bulls see this as confirmation that the AI infrastructure supercycle has years left to run. Skeptics, however, will note that a single deal announcement doesn’t guarantee sustained returns for adjacent names, and that stocks like SNDK and LITE are already pricing in substantial growth.
Whether today’s gains hold into the close remains to be seen. High-beta names like these can extend moves quickly in constructive markets, and the same profile can amplify reversals if sentiment shifts.
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