Sizemore Investment Letter

From Infrastructure to Adopters: The Next Phase of the AI Boom

Back in October, I shared research from Kai Wu, founder of Sparkline Capital, that pointed out the Achilles heel of the AI Boom. The builders of AI…

Feb 4 • Charles Sizemore

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January 2026

Why the “Death of Google” Was the Greatest Head-Fake in Market History

I’m not too proud to admit when I’m wrong…

Jan 28 • Charles Sizemore

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There is NO Solution to this Problem

AI can replace workers... but it cannot replace shoppers.

Jan 28 • Charles Sizemore

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What Airline Earnings Say About the American Consumer

For the top tier of income earners — and those who own significant assets — life has never been better.

Jan 9 • Charles Sizemore

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December 2025

Sometimes They Really Do Ring a Bell, Part II

Back in October, I asked if Oracle (ORCL) was the canary in the coalmine signaling trouble in AI land.

Dec 19, 2025 • Charles Sizemore

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AI's Achilles Heel, Revisited

Microsoft now spends more on capex than ExxonMobil

Dec 4, 2025 • Charles Sizemore

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November 2025

AI's Fatal Flaw

AI bots can replace a worker but not a shopper

Nov 21, 2025 • Charles Sizemore

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Warren Buffett's Last Letter to Investors (Maybe)

The Oracle of Omaha considers the role that luck played in his success

Nov 12, 2025 • Charles Sizemore

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Is the Air Starting to Seep Out of the AI Bubble?

Wall Street suddenly seems concerned about tech valuations

Nov 12, 2025 • Charles Sizemore

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Happy Guy Fawkes Day

A tribute to the last man to enter parliament with honest intentions

Nov 5, 2025 • Charles Sizemore

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October 2025

Singularity... or Extinction?

Apparently the Fed believes there is a non-zero chance AI kills us all

Oct 27, 2025 • Charles Sizemore

The Achilles Heel of the AI Boom

Technology companies are transforming from asset-light to asset-heavy businesses

Oct 24, 2025 • Charles Sizemore

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