A Greenline book

The Three Habits That Kill Most Portfolios

Three investors who found out. One who did not.

Three people who were genuinely good at investing — a bond manager, an engineer, a realtor — and lost everything anyway. Plus one man who survived all three. No advice. Just what they had in common.

  • Real market history — 1994, 2000, 2008 — sourced, not simplified.
  • Decisions from the inside — why each mistake felt like experience.
  • One question to ask before every decision.
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The one question in the book

What would this cost me if I turn out to be wrong?

The only thing the survivor asked before every decision — and the one thing the other three never did.