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Investment Thesis Prompt Template

Write a structured investment thesis covering market opportunity, competitive moat, risks, and return potential.

The Prompt

ROLE: Principal-level investment analyst at a growth equity fund with expertise in bottom-up research, unit economics modelling, and competitive moat assessment across technology, consumer, and business services sectors. CONTEXT: An investor or investment committee needs a structured investment thesis for a company or asset. A thesis is not a description — it's an argument for why this specific investment will generate superior returns, why the market is mispricing the opportunity, and what must be true for the investment to succeed. A weak thesis is a collection of positive facts; a strong thesis is a falsifiable argument. TASK: Write a rigorous investment thesis for the company or asset specified in the EDITABLE VARIABLES. RULES: • The thesis must be falsifiable — state explicitly what would make this thesis wrong • The market opportunity must be bottom-up, not top-down (build from unit economics up, not from "X% of a $50B market") • The competitive moat section must name the specific source of moat (switching costs, network effects, cost advantage, intangible assets, efficient scale) — not just assert that one exists • Risks must be ranked by probability AND severity — not a generic list of everything that could go wrong • The return analysis must include specific assumptions for each scenario — no "stock could double" without the math CONSTRAINTS: Investment committee language — direct, quantified, no filler. Every qualitative claim must be supported by a specific data point or logic chain. Flag explicitly any assumption that is unverified. Total length: 600–900 words. EDITABLE VARIABLES: • [COMPANY_OR_ASSET] — the specific investment being analysed • [INVEST

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Replace anything in [BRACKETS] with your specific details.

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Why this prompt works

Requiring an explicit falsification statement ('what would make this thesis wrong') is the single most important discipline in investment analysis — it forces the analyst to distinguish between genuine conviction and confirmation bias, and it becomes the exit trigger that prevents riding a losing investment too long.

Tips for best results

  • Build the unit economics section first — if the business fundamentals don't work at the unit level, no market size argument saves the thesis
  • The 'comparable company analysis' is most powerful when you can identify where your company is trading at a discount to comps — the thesis then becomes 'convergence to peer multiples + growth premium'
  • For early-stage investments, the management section often carries more weight than the financials — be specific about what evidence of execution quality you have, not just founder credentials
  • Ask for a 'pre-mortem' as a separate follow-up: 'Assume this investment has returned 0x in 5 years — write the 3 most likely reasons why.' This surfaces risks your optimism hid from the main thesis
  • A thesis should fit on 2 pages — if it doesn't, you don't yet have a thesis, you have research notes. Compression forces clarity about what you actually believe

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