The unreal intelligence (AI) playbook is acquainted by way of now: Construct a larger GPU cluster. Upload extra Blackwell chips. Throw extra electrical energy on the drawback. If the chips get sizzling, construct the information middle subsequent to a river. If the bandwidth runs out, lay extra copper.
This is how Amazon, Alphabet, Microsoft, and Meta Platforms are fixing AI in 2026. And it really works — till it runs into physics.
One corporate checked out that very same drawback and arrived at a distinct resolution. GlobalFoundries (GFS 0.82%) is having a bet that the actual bottleneck in AI infrastructure isn’t compute continual. It’s the twine connecting the chips and changing that twine with gentle.
As of late’s Alternate
(-0.82%) $-0.66
Present Worth
$79.97
Key Information Issues
Marketplace Cap
$44B
Day’s Vary
$79.27 – $82.79
52wk Vary
$31.51 – $92.55
Quantity
5.9M
Avg Vol
4.9M
Gross Margin
26.11%
The copper wall no one talks about
Inside of each and every AI information middle, 1000’s of chips will have to proportion knowledge at huge speeds. At the moment, maximum of that communique travels via copper, which is working out of room. It generates warmth, loses sign over distance, and consumes continual in ways in which turn out to be painful at scale. Each time an AI fashion will get larger, the copper drawback will get worse.
The business has identified this for years. The answer has a reputation: co-packaged optics (CPO). The speculation is to transport optical transceivers, parts that transmit information via gentle slightly than electrical energy, at once along the chip, shrinking the space information has to shuttle via copper to just about not anything. The result’s quicker, cooler, extra power-efficient AI infrastructure.
In Would possibly 2026, GlobalFoundries introduced SCALE — Silicon photonics Co-packaged Complicated Mild Engine resolution — the business’s first platform to fulfill the Optical Compute Interconnect Multi-Supply Settlement specs for AI scale-up architectures. The platform makes use of each coarse and dense wavelength-division multiplexing (DWDM) over every optical fiber to push bandwidth density and scalability previous what copper can do, and GlobalFoundries has already demonstrated 8λ and 16λ bi-directional DWDM natively on its platform — a milestone the corporate describes as basic to the entirety that follows.
Symbol supply: Getty Photographs.
The a part of the stack everyone seems to be chasing
This is the article about silicon photonics that will get misplaced within the GPU protection: This is a production drawback up to a physics drawback. Designing a silicon photonic chip is tricky. Development it at scale, with the precision required for optical fiber alignment, in quantity, for hyperscale information facilities is more difficult.
GlobalFoundries has spent years growing the method generation to do just that. Its silicon photonics platform helps 50 Gbps and 100 Gbps micro-ring modulators, broadband removable fiber interfaces, and flat insertion loss traits that future-proof the platform as wavelength counts scale. In November 2025, the corporate received Complicated Micro Foundry in Singapore, a specialised silicon photonics producer, including production property, highbrow assets, and engineering intensity that might take years to construct from scratch.
That acquisition gave GlobalFoundries manufacturing capability for silicon photonics in Singapore, a geography that issues for provide chain diversification amid increased U.S.-China semiconductor tensions. The corporate is development a platform that the hyperscalers want and only a few producers can if truth be told ship.
GlobalFoundries dropped 10% in sooner or later, however I am not nervous
GlobalFoundries fell just about 10% on Would possibly 27, dragged down by way of Mubadala’s alleged inventory sale. Mubadala is Abu Dhabi’s sovereign wealth fund and was once previously the controlling shareholder of GlobalFoundries. Regardless of the inventory drop, the long-term Motley Idiot framing wins right here.
GlobalFoundries’ tale is undamaged. The SCALE announcement despatched the fill up 12% in one consultation simply weeks in the past. A Q1 2026 profits beat adopted. Silicon photonics income is anticipated to just about double once more in 2026, with over 500 design wins logged in 2025 and momentum development. A sell-off does no longer exchange the ones information.
Additionally, the U.S. executive is backing GlobalFoundries with a proposed $375 million award to assist construct out home quantum production infrastructure.
Each primary hyperscaler is calling tips on how to teach larger fashions quicker. GlobalFoundries is calling a distinct query: How do you progress information between chips with out the infrastructure melting?
Co-packaged optics is the solution. The corporate development the producing platform to ship it at scale continues to be, on maximum days, filed underneath “semiconductor foundry.” On days it drops 10% for causes unrelated to its maximum necessary industry, that drop turns into a possibility.
