Memo From the Chief Economist

Memo From the Chief Economist

Memo From the Chief Economist: Life On Mars?

The SpaceX IPO is the latest symbol of a market willing to overlook valuations, even as mounting risks point towards familiar boom-bust dynamics.

David Rosenberg's avatar
David Rosenberg
Jun 15, 2026
∙ Paid

Key Takeaways:

  • The SpaceX IPO pop of +19%, and the incredible 92x price-to-sales ratio, highlight a market driven by momentum, not fundamentals

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