@Finixyta

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438 Posts
The world of financial markets, blockchain, and digital currencies. https://substack.com/@finixyta
The Laser Bottleneck: Mesh, Marvell, and the CW DFB Supply Chain That’s About to Get Very Expensive https://nexusfinance.substack.com/p/the-laser-bottleneck-mesh-marvell
The Laser Bottleneck: Mesh, Marvell, and the CW DFB Supply Chain That’s About to Get Very Expensive

“As bandwidth and reach continue to increase, every connection point in the data center must move from copper to optical.” — Marvell Technology, December 2025

Nexus Finance
The Laser Tax: Why AMD Is Begging for Photons and Who Gets Paid for Them https://nexusfinance.substack.com/p/the-laser-tax-why-amd-is-begging
The Laser Tax: Why AMD Is Begging for Photons and Who Gets Paid for Them

There’s a peculiar moment in every infrastructure buildout where the bottleneck stops being the thing everyone is watching and becomes the thing nobody priced in.

Nexus Finance
The Laser Nobody Sees Coming

Why $SIVE May Be the Most Structurally Important Stock in AI Infrastructure

Nexus Finance
The Light That Feeds the Machine: Inside the Photonics Supercycle Nobody’s Talking About https://nexusfinance.substack.com/p/the-light-that-feeds-the-machine
The Light That Feeds the Machine: Inside the Photonics Supercycle Nobody’s Talking About

Thesis: Photonics is not a thematic trade.

Nexus Finance
Why Data Center Thermal Management Is the Semiconductor Cycle’s Dirtiest Secret https://nexusfinance.substack.com/p/why-data-center-thermal-management
Why Data Center Thermal Management Is the Semiconductor Cycle’s Dirtiest Secret

The thesis in one sentence: The AI hardware arms race has quietly engineered a thermal physics problem that no amount of compute budget can simply buy its way out of — and the companies that own the cooling, the substrate, and the memory infrastructure are the real chokepoints of the next decade.

Nexus Finance
The Photon Gap: How a $130M Swedish Semiconductor Company Became the Unlikely Chokepoint in AI’s Next Great Arms Race https://nexusfinance.substack.com/p/the-photon-gap
The Photon Gap

How a $130M Swedish Semiconductor Company Became the Unlikely Chokepoint in AI’s Next Great Arms Race

Nexus Finance
HBM4 and the Quiet Monopolies Powering the Next Phase of AI Infrastructure https://nexusfinance.substack.com/p/hbm4-and-the-quiet-monopolies-powering
HBM4 and the Quiet Monopolies Powering the Next Phase of AI Infrastructure

A Deep Dive into the Supply Chain Monopolies Powering (or Breaking) the AI Revolution

Nexus Finance
The Black Hole at the Heart of Silicon Photonics

Why the $17 Billion CPO Revolution Hinges on a Test Problem Nobody Has Solved Yet

Nexus Finance
$HIMS: The Healthcare Platform Nobody Knows How to Value (And That’s Exactly the Point) https://nexusfinance.substack.com/p/hims-the-healthcare-platform-nobody
$HIMS: The Healthcare Platform Nobody Knows How to Value (And That’s Exactly the Point)

The bull case for Hims & Hers isn’t about GLP-1s.

Nexus Finance
The Boring Grid Just Became the Most Exciting Trade of the Decade https://nexusfinance.substack.com/p/the-boring-grid-just-became-the-most
The Boring Grid Just Became the Most Exciting Trade of the Decade

Why $XLU OTM 2-Year LEAPS might be the most asymmetric options trade in a generation — and why the market hasn’t priced it in yet.

Nexus Finance