An AI model trains across 100,000 chips that all have to talk at once. The stocks that wire them: Arista (ANET), Broadcom (AVGO), Coherent (COHR) and Astera Labs (ALAB)
Tens of thousands of GPUs have to act like one machine, and the network that connects them is a fast-growing slice of every AI buildout. Here's what Arista, Broadcom, Marvell, the optics makers and Astera Labs each do.
Coherent (COHR), Lumentum (LITE) and Applied Optoelectronics (AAOI) all beat on earnings. Coherent's stock dropped after hours after reporting.
Coherent beat on revenue and profit and guided higher, its seventh straight beat, capping a clean sweep of AI-optics earnings with Lumentum and Applied Optoelectronics. All three beat. But after a 44% run, Coherent's stock slipped after hours, the same sell-the-news reaction the group keeps showing.
The $5.5 billion optics startup in this week's headlines already has a public partner: POET Technologies (POET)
Lumilens emerged from stealth at a $5.5 billion valuation. POET Technologies (POET) is the public company that signed in May to build its optical engines, a $50 million order that can scale to $500 million.
Applied Optoelectronics (AAOI) did a double beat and guided up 42%. Why did the stock tank to $115 before clawing back?
AAOI did a double beat and guided Q3 up 42%. After the report the stock spiked to $142, tanked to $115, then clawed back to around $125. I own it, I'm holding, and here's why I think next week is the real move.
Sivers Semiconductors (SIVEF) jumped on a US plan to block Chinese transceivers. Sivers supplies the lasers inside them.
SIVE closed up 18.86% in Stockholm and the US line finished at $3.90, up 17.1%. Sivers announced nothing Tuesday. The connection runs through Jabil, which said in April it plans to build a 1.6T transceiver module using Sivers' DFB lasers, with no customer or revenue date disclosed.
The FCC may ban Chinese optical transceivers. Photonics stocks exploded, and Applied Optoelectronics (AAOI) has run nearly 70% in four sessions.
Reuters says the FCC is drafting a rule that would ban imports of all new optical transceiver models, then exempt many non-Chinese suppliers. The photonics group repriced on it Tuesday morning, and AAOI, down 66% since May, ran the hardest.
It is not just the chips: optics, memory and the neo-clouds all sold off this morning
The whole AI build-out sold off Monday morning, not just semiconductors. Optical names like Coherent (COHR) led the drop, memory (MU) and the neo-clouds fell hard, and Nebius (NBIS) was the lone holdout. What is going on.
AAOI cracks its floor: why photonics is getting routed today, and why the AI optics story holds
AAOI is down 14% into the $140s and the whole optical complex is bleeding. A deep dive into the sector rout, the broken chart, and why the long-term AI photonics thesis is still intact.
The AI stock map: every layer of the trade, from sand to software
A top-to-bottom deep dive on the AI supply chain, from the machines that make the chips down to the hyperscalers writing the checks, and how every layer pushes and pulls on the others.