Data Centers & Cloud

The buildout behind the AI bill

Hyperscaler capex, colocation supply, power, cooling and networking — where the money goes after the GPU order, and which companies book it.

2026-07-19

2026-07-18

2026-07-16

2026-07-15

An Oracle data center skyline next to a bond rating ticker showing BBB and a falling-angel warning sign, with AI capex scaffolding
AI & Software / Hyperscaler Credit
ORCL•12 min read

Oracle's 63% Slide From Its 52-Week High Is the First AI-Infrastructure 'Fallen-Angel Watch' the Bond Market Has to Price

Oracle is down roughly 13% over the last 10 sessions and ~63% from its 52-week high of $345.72, with the 52-week low of $127.60 set on July 14, 2026. After the June 11, 2026 8% tumble on a $20 billion capital-raise disclosure and the June 23, 2026 disclosure that Oracle shed ~21,000 roles over the past year, the equity is now pricing the risk that AI-infrastructure capex commitments are pushing the balance sheet toward fallen-angel territory. With debt-to-equity at 322.86%, the question for the bond market is no longer whether Oracle can fund the AI build, but whether the cost of capital will move before the next earnings print on September 7.

Prior close: $127.9452-week low: $127.60
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AWS data center skyline at sunset with a departing executive silhouette, $25B bond sale banner, and Amazon ticker showing 28% AWS growth
AI & Software / Cloud Leadership
AMZN•13 min read

Amazon Just Lost a 19-Year AWS S-Team Veteran Right When the AI Capex Cycle Is at Its Peak

Dave Brown, an Amazon Web Services SVP who helped assemble the original EC2 service in South Africa in the 2000s and oversaw AWS's compute and machine learning units including Bedrock and SageMaker, plans to leave the company at the end of July 2026 after nearly 19 years. He will be replaced by Dave Treadwell from the e-commerce division. Brown's exit from Jassy's 28-person S-team comes as AWS recorded 28% revenue growth in Q1 2026 and as Amazon raised at least $25B in a bond sale to fund its AI capex - the worst possible timing for a leadership transition.

Tenure: ~19 yrsS-team count: 28 execs
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A data center cold plate liquid cooling loop on a server rack, a dielectric coolant reservoir in the foreground, an AI GPU cluster with cold plates attached, and a high-density server hall in a hyperscaler data center
AI & Software / Data Center Thermal Deep-Dive
VRT · ASTK.OL•21 min read

Liquid Cooling Deep Dive: How Vertiv, Boyd, Rittal, CoolIT Systems, and Asetek Built the Most Concentrated AI Data Center Thermal Stack of the Cycle

Liquid cooling is the binding AI data center thermal stack of the cycle - air cooling is no longer sufficient for AI accelerators >700W TDP, and the 2026-2028 liquid cooling demand is the cleanest single read on the AI capex cycle's thermal leg. Vertiv leads with ~30% liquid cooling share, Boyd at ~10%, Rittal at ~10%, CoolIT Systems (the cleanest pure-play, recently acquired by Eaton) at ~8%, and Asetek at ~5%. This is a full-stack deep-dive into liquid cooling: cold plate (DLC) vs immersion (single-phase + two-phase) vs rear-door heat exchanger (RDHx), the coolant chemistry (PG-25, dielectric fluids), the customer base (Microsoft, Alphabet, Amazon, Meta), the top experts, the capex, the 2026-2028 supply-demand, and the read-through for the AI capex stack.

Liquid cooling market 2025: ~$7BAI data center power density 2026E: 100+ kW/rack
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2026-07-14

2026-07-13

2026-07-02

2026-07-01

2026-06-30

2026-06-24

What to expect

Evidence-first notes with a visible point of view.

This section collects sharp takes on earnings, shareholder meetings, and market structure. Each new piece should make the thesis, the facts, and the implications obvious within the first few screens.

Expect direct analysis, not generic commentary.

Expect the data to be explicit and the argument to be easy to follow.