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Investor’s (Valid) Capex Concerns w/AI

Large-cap tech’s planned capex for 2025 is worrying investors. What will be the return on that capital? Never before have these companies made such large bets. Before DeepSeek, it was assumed the tech giants – with their deep pockets and almost limitless resources – would enjoy a wide moat in the AI arena. And from there, that justified the high valuation multiples. Not now. DeepSeek’s arrival challenges those long held assumptions (and valuations).

Investors Starting to Question AI’s ROIC

AI investors were caught off guard this week on news of China’s ChapGPT rival “DeepSeek”. It’s alleged DeepSeek was developed far more cost-effectively (millions vs billions) than OpenAI’s ChatGPT (and similar large language models). If true (and we don’t know) – this raises questions about the sustainability of current U.S. AI infrastructure investments – forecast to top $1 Trillion next year. All of a sudden – valuations for these AI stocks are being questioned.

Why Did Buffett Add to SiriusXM?

Recently Warren Buffett increased his stake in SiriusXM (SIRI) to over 32% of all available stock. However, with the company losing subscribers – where revenue and earnings in decline – why would the Oracle of Omaha increase his ownership? Two reasons: (a) first its return on invested capital and free cash flow; and (b) the value offered. This post explains both the quality and value arguments for Buffett choosing to increase his exposure to this unloved stock…

Simplifying Quality & Value

Charlie Munger once joked “all I want to know is where I’m going to die, so I’ll never go there.” Jokes aside – it’s the same approach you should apply with investing. And it’s not difficult to do. The math is very simple — addition, subtraction, division and multiplication. If you have access to a calculator – you’re all set. The challenge is mastering your emotions (and any self-defeating behaviors). A calculator (or AI) can’t help you with that. This game is more EQ than it is IQ. Think of it as a test of your character versus your intellect. For e.g. – many highly intelligent people get investing wrong (e.g., due to emotions such as greed, fear or some inherent bias). This post talks about how we can simplify our approach to avoid taking excessive risks

For a full list of posts from 2017…