Chit Chat Stocks Investing Through The Capital Cycle And a Warning For AI Stocks? (Marathon Asset Management)
Mar 18, 2026
Discussion of Capital Cycle Theory and how booms, oversupply, busts, and consolidation shape returns. Tales from the telecom bubble and beer industry consolidation illustrate cycle dynamics. Debate on AI and data‑center capital intensity and whether hyperscalers can weather oversupply. Reviews of Marathon Asset Management’s long‑term approach and portfolio themes like semiconductors and commodities.
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Capital Cycle Theory Explains Industry Booms And Busts
- Capital Cycle Theory explains booms as rising returns attracting entrants, which increases supply and eventually destroys returns until consolidation restores profitability.
- Marathon tracks supply changes (CapEx, industry entrants) because supply is easier to observe than future demand and predicts when returns will recover.
Earnings-Per-Share Focus Distorts Management Behavior
- Quarterly EPS focus corrupts capital allocation as management chases 'the number' and sandbags guidance to beat expectations.
- Marathon argues long-term shareholder value is driven by return on capital deployed, not short-term EPS beats.
Telecom Bubble Shows How Excess CapEx Destroys Returns
- The 1990s telecom boom saw $500 billion of planned telecom equipment spending and rampant new entrants who assumed $1 invested would generate $1 of sales.
- Marathon used this telecom example to show how excess supply from eager entrants precipitated the bust and severe shareholder losses.
