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Not investment advice. Educational reading. See Disclaimer.
L.1 · INTERMEDIATE · 2 MIN

Anatomy of an Investment Thesis

An investment thesis is not the same as an opinion. A thesis is a falsifiable claim about why the market price is wrong, supported by evidence and tied to a catalyst. If you can't state how you would know you were wrong, you don't have a thesis — you have a position.

Quiz · 5 questions ↓
§ 01

The 8-section memo: (1) snapshot, (2) business model, (3) situation, (4) my view, (5) items for further diligence, (6) risks and counter-thesis, (7) base / bull / bear scenarios, (8) target price and timing. Every serious investor writes some version of this — even if only in their own notebook.

§ 02
Pitch fragmentVerdictWhy
"It's cheap on EV/EBITDA."Observation, not thesisNames the symptom, not the cause or the cure
"Estimates are too low because the new CEO has a turnaround track record at Hartwood."ThesisVariant fundamental view + named catalyst (next earnings)
"It will work over the long term."HopeNo falsifiable claim, no catalyst, no horizon
§ 03

Worked example — Halton Industries (fictional regional logistics): trades at 6.2x LTM EBITDA vs peers at 9.8x. The thesis is not the multiple gap. It is: "New CEO Kerry Grimes broke a 5-year streak of missed earnings; my unit-level model shows 2026E EBITDA 12% above consensus, driving multiple expansion to peer level over 18 months. Catalyst: Q2 earnings, 45 days out. Bull $48 / Base $36 / Bear $22."

§ 04
Which of the following is the strongest thesis statement for Pelham Holdings, currently $52?
§ 05

If you cannot state your thesis in two sentences — what is mispriced, why, and what closes the gap — you do not yet have a thesis. Sit with the question until you do. Most professional analysts throw away more theses than they write up.

Five questions · AI feedback

Sit with the ideas.

An analyst tells a portfolio manager: "I'm long Halton Industries because it trades at 8x EBITDA while peers trade at 14x." What is the most accurate critique of this pitch?

Why:
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