Thesis Validation and Exit System

The hardest skill in contrarian investing is distinguishing between being early — which requires patience — and being wrong — which requires an exit. Both look identical from the inside: the price is falling and the world disagrees with you.

Why This Matters

Marks identifies two failure modes that destroy contrarian investors: holding too long on a broken thesis (hoping to recover), and selling too early on an intact thesis (capitulating to price pain). The Thesis Validation and Exit System provides a quarterly review process that evaluates thesis status from the evidence — not from the price — and makes hold, trim, or exit decisions on that basis.