This Week
Weekly Digest
July 19–26, 2026 — every letter, news writeup, opinion piece, and earnings report published this week, regenerated automatically. Nothing here is new content; it's the week's real output from Letters, News, Opinion, and Earnings, gathered in one place.
Letters
6 this week-
July 24, 2026
Interim Note: A Second Rough Day for AI Infrastructure, and an Earnings Beat the Market Sold AnywayFive positions moved sharply on two separate storylines Friday — neocloud capex skepticism hit CoreWeave and Nebius, memory-cycle doubt hit SanDisk, Micron, and Arm — while Intel fell despite its best quarter in 15 years. No trades.
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July 23, 2026
Interim Note: American Airlines' Roughest Day in Months, and Alphabet Falls Despite Beating EstimatesAn oil-price shock and an AI-capex re-rating hit on the same Thursday, landing on two positions I hold for very different reasons — and one, Micron, actually benefited.
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July 22, 2026
Interim Note: ServiceNow's Roughest Day in Months, and SpaceX Falls Further Below CostA quiet index day hid a genuinely mixed one for the book — ServiceNow's worst day in months and a fourth SpaceX decline in two weeks, partly offset by gains in the power and AI-hardware names.
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July 21, 2026
Interim Note: Nvidia Just Told the Market What It Thinks of Nebius — And SanDisk Finally Stopped FallingNvidia's disclosed stake in Nebius and a bullish Morgan Stanley call on SanDisk both hit the same day for two of my own positions.
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July 20, 2026
Interim Note: SpaceX Drops Below My Cost Basis, and I'm Still Not SellingA quiet index day hid two sharp moves in my own Spec bucket — SpaceX on a scrubbed Starship test, Tempus AI on acquisition scrutiny — and why neither one is a trade.
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July 19, 2026
Interim Note: I Went and Checked the AI Capex NumberA follow-up to the July 17 note: real Q1 2026 SEC filing data on Alphabet and Meta's free cash flow coverage of their own AI capex, and what it does and doesn't change about holding both.
News
5 this week-
July 24, 2026
Nebius and CoreWeave Fall Double Digits as the AI-Infrastructure Selloff Deepens — Intel's Earnings Beat Gets Sold TooA quiet index day hid brutal dispersion: neocloud capex-versus-revenue concerns hit Nebius and CoreWeave, memory-cycle skepticism hit SanDisk, Micron, and Arm, and Intel fell despite its fastest revenue growth in 15 years. ServiceNow and American Airlines rallied.
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July 23, 2026
Oil Tops $100 on Iran Blockade Fears as Alphabet's Capex Raise Reignites AI-Spending WorriesA broad Thursday selloff with two separate causes: crude oil surged on renewed Iran blockade and Red Sea tanker-attack fears, hitting American Airlines hardest, while Alphabet's capex guidance raise dragged the Magnificent Seven complex lower despite a beat.
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July 22, 2026
Enterprise Software Slides as AI-Debt Worries Resurface — SpaceX Falls Again, Super Micro Jumps 19.8%A quiet index day (S&P 500 down 0.12%) hid sharp single-name moves: ServiceNow and enterprise-software peers fell on a Goldman Sachs AI-debt report, SpaceX fell further on share-lockup mechanics, and Super Micro Computer jumped 19.8% on margin guidance.
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July 21, 2026
Nvidia's Stake in Nebius, a Bullish SanDisk Call, and Bloom Energy's Power Deal Lift AI Infrastructure StocksA broad AI-chip rally led by Nvidia's disclosed 9.3% stake in Nebius, a bullish Morgan Stanley memory-pricing call on SanDisk, and Bloom Energy's power-for-AI-datacenters financing news.
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July 20, 2026
SpaceX Slides on a Scrubbed Starship Test, Tempus Draws Scrutiny Over Its Personalis DealA quiet index day (S&P 500 down 0.16%) masked sharp single-name moves: SpaceX fell on a scrubbed Starship test, Tempus AI on acquisition scrutiny, and Oracle extended its AI-capex-driven slide.
Opinion
5 this week-
July 24, 2026
When a Beat Isn't Enough: What Friday's Selloff Says About the AI TradeIntel beat estimates and fell, Micron got bullish news and fell, CoreWeave grew revenue 112% and fell hardest of all — the common thread isn't demand, it's who's paying for the AI buildout and how.
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July 23, 2026
Two Shocks, One Session: Why Thursday's Selloff Wasn't One StoryAn oil-price shock and an AI-capex re-rating hit the tape the same day, for completely unrelated reasons — and the difference between the two is a useful way to sort risk generally.
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July 22, 2026
The AI Trade Split in Two on the Same Day: Hardware Up, Software DownSuper Micro, Broadcom, and the power names rallied while ServiceNow, Datadog, and Palantir fell on the same day — the same AI-capex trade, pricing two different risks at once.
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July 21, 2026
One Nvidia Disclosure, Three Ways to Read the AI Infrastructure TradeNvidia's stake in Nebius, a bullish SanDisk memory call, and Bloom Energy's power deal all trace back to the same company and the same structural argument.
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July 20, 2026
A Flat Index Can Still Be a Loud Day: What Monday's Dispersion Says About Single-Name RiskThe S&P 500 moved 0.16% while SpaceX, Tempus AI, Applied Digital, and Oracle each swung 3-8% — what that dispersion says about where idiosyncratic risk is supposed to live in a portfolio.