Thesis-First Investment Filter
Screen founders independently, then size each bet to the evidence
- Difficulty
- Advanced
- Time to result
- ~weeks to results
- Steps
- 5
- Confidence
- 90%
The filter separates founder persuasion from the investment decision. The investor first defines a thesis: target sectors, stages, strategic fit, return requirements, and acceptable risk. A qualified screener then receives the pitch, tests whether the company fits that thesis, verifies operating claims, studies the competitive landscape, and estimates the likelihood of a viable exit. The recommendation is not merely yes or no; it connects evidence quality and downside to position size, allowing a small conviction-limited bet when interest remains but risk is high. The screener can be paid a salary or receive a modest share of successful outcomes, but the incentive must support disciplined filtering. The mechanism protects an operator from substituting personal liking and founder charisma for diligence.
Origin
After joining Hampton and comparing notes with experienced founders and investors, Schafer recognized that he had been judging investments by whether he liked the people, brand, and product. Peers advised him to delegate screening to a specialist.
Core principles
- 01A likable founder is not independent evidence
- 02Every opportunity must fit a stated investment thesis
- 03The screener must verify the pitch rather than repeat it
- 04Position size should reflect downside and exit probability
- 05Compensation should align the filter with investment outcomes
How to run it
- 1
State the thesis
Define what kinds of companies fit, why you have an edge, what stage is acceptable, and what risks or sectors are excluded.
Pro tip Include the strategic help you can realistically provide.
Watch out A thesis written after seeing the deal is rationalization.
- 2
Install an independent screen
Use someone skilled in evaluating companies to receive pitches and filter them against the thesis before they reach the decision maker.
Pro tip Choose a screener who understands both financial diligence and the target sector.
Watch out Do not hire another salesperson to summarize the founder's story.
- 3
Verify the business
Check performance claims, economics, competition, funding history, and plausible exit routes independently.
Pro tip Distinguish revenue growth from profitability and investor-funded growth.
Watch out Founder charisma is not corroboration.
- 4
Translate risk into size
Recommend passing, making a small learning-sized investment, or committing a larger amount according to the evidence and downside.
Pro tip State what new evidence would justify a larger position.
Watch out Do not use the same check size for every appealing deal.
- 5
Align the incentive
Compensate the screener with a clear salary or a bounded share of successful returns so the relationship is explicit.
Pro tip Audit whether incentives reward selectivity as well as finding deals.
Watch out Pure deal-volume incentives can turn the filter into a funnel.
In the wild
A founder presents rapid revenue growth and a polished expansion story. Rather than investing because the product is appealing, the screener checks whether growth is investor-funded, tests margins and competition, estimates exit likelihood, and recommends either passing or a smaller position than the founder requested.
→ The investment amount reflects verified risk rather than enthusiasm generated by the pitch.
Schafer says his informal process was to invest when he liked the people, brand, and product. Experienced peers pointed out that company assessment was not his wheelhouse and recommended a specialist who could filter opportunities against his fitness-and-health thesis.
→ He paused new investments while learning a more disciplined screening approach.
Common mistakes
Investing in likability
A founder's ability to create trust and excitement can conceal weak economics or an unlikely exit.
Confusing growth with return
Revenue purchased with repeated funding rounds does not by itself prove profitability or investor value.
Binary sizing
Treating every accepted deal as the same-size bet ignores major differences in confidence and downside.
Is it for you?
Best for
Operators making repeated angel investments outside their own core diligence expertise.
Not ideal for
It is not sufficient for regulated investment management or a substitute for legal, tax, and financial advice.
From the transcript
“they understand your thesis we're looking for fitness health brands that have you know that are that are could grow with us or we can…”
“their job is to take that filter then go do their own homework”
“if you really really like it do 25 or I would suggest you pass on it”
From the episode
Episode 369: Mind Pump's Adam Schafer: Overcoming Childhood Adversity To Success in Business, Habits, and Relationships.
Mind Pump's Adam Schafer