Microsoft

The market rewards growth. It under-prices the discipline that decides where growth gets reinvested. Microsoft’s second act is, at heart, a capital allocation story dressed up as a cloud story.

Reinvestment beats revenue

A business that grows revenue 15% while reinvesting at mediocre returns destroys value. A business that grows 8% while reinvesting at high returns compounds.

Growth is only valuable in the presence of returns on the capital that funds it.

The flywheel

1. Enterprise relationships generate durable cash flows.
2. Cash flows fund infrastructure with long useful lives.
3. Infrastructure lowers the marginal cost of every future product.

flowchart LR
A[Enterprise cash flow] --> B[Infrastructure]
B --> C[Lower marginal cost]
C --> A

Valuation note

What compounds value is the spread between return on invested capital and the cost of that capital — growth only matters when that spread is positive:

The interesting question is not whether the multiple is high. It is whether the incremental return on invested capital justifies it — the same discipline traced in Notes on Durable Advantage. On that test, the durable ones almost always look expensive, right up until they look cheap in hindsight.