Build Your Own Investing Compass
Synthesize proven ideas into a style you can follow consistently
- Difficulty
- Advanced
- Time to result
- ~ongoing to results
- Steps
- 6
- Confidence
- 94%
An investing compass is a coherent personal process assembled from many credible sources rather than copied from a single famous investor. The learner studies how different practitioners generate returns, extracts useful mechanisms, and tests them against personal temperament, analytical strengths, time horizon, and tolerance for volatility. Compatible elements are combined into explicit decision rules covering research, valuation, portfolio construction, and behavior under stress. The output is not originality for its own sake; it is a process the investor understands deeply enough to follow consistently when performance turns against it. Confidence comes from knowing why each component belongs. Changes should follow accumulated evidence or a changed environment, not the temptation to become a value investor, growth investor, or thematic trader whenever that style has recently outperformed.
Origin
Sandler credits his father, Morris Mark, David Herro, Warren Buffett, David Tepper, Julian Robertson, and other peers as inputs to the personal compass he built over his career.
Core principles
- 01Learn broadly without copying one investor wholesale
- 02Adopt only methods compatible with your temperament and skills
- 03Build confidence from a coherent process
- 04Remain consistent through inevitable drawdowns
- 05Do not switch styles to chase recent winners
How to run it
- 1
Gather diverse models
Study investors with different styles, markets, and strengths. Focus on how they make decisions rather than merely copying their holdings.
Pro tip Include practitioners whose approaches conflict so the trade-offs become visible.
Watch out Hero worship can conceal the conditions and temperament behind another investor's success.
- 2
Extract mechanisms
Identify the repeatable mechanism behind each useful practice, including its inputs, expected advantage, and failure conditions. Separate durable principles from period-specific tactics.
Pro tip Summarize each candidate idea as a decision rule you could test.
Watch out Past returns alone do not reveal whether a method is repeatable.
- 3
Test personal fit
Evaluate whether each method suits your skills, resources, horizon, and tolerance for uncertainty. Reject approaches you cannot execute consistently under pressure.
Pro tip Review how you behaved during previous losses, not how you imagine you will behave.
Watch out An intellectually attractive strategy can fail if it conflicts with your temperament.
- 4
Assemble coherent rules
Combine compatible practices into a unified research and portfolio process. Resolve contradictions before committing capital.
Pro tip Document what you buy, why you buy it, how you size it, and what changes your mind.
Watch out Mixing incompatible styles can produce hidden risks and inconsistent decisions.
- 5
Practice through cycles
Apply the process consistently and evaluate decisions across different market environments. Let repeated experience build justified confidence.
Pro tip Keep a decision journal that separates process quality from short-term outcome.
Watch out A sound process can underperform temporarily.
- 6
Evolve without chasing
Update the compass when evidence exposes a weakness or the market structure changes. Avoid switching styles simply because another approach recently performed better.
Pro tip Require a written reason and supporting evidence for material process changes.
Watch out Constantly adopting the latest winner destroys consistency and compounds behavioral errors.
In the wild
Sandler describes taking selected lessons from Warren Buffett, David Tepper, Julian Robertson, Tiger investors, mentors, peers, and colleagues. Rather than reproducing any one person's strategy, he combines elements that fit his own approach to durable businesses, valuation, short selling, and portfolio construction.
→ The synthesis produces a process he can execute with consistency and confidence across changing markets.
A young investor trained in bottom-up quality investing watches speculative growth stocks outperform for a year. Instead of replacing the entire process, the investor reviews missed opportunities, adds a clearly defined growth-assessment tool, and retains valuation and risk rules that fit their temperament.
→ The process evolves from evidence without becoming a reaction to recent returns.
Common mistakes
Copying one famous investor
Another investor's temperament, information, capital base, and time horizon may be impossible to reproduce.
Chasing the latest winner
Repeatedly switching between value, growth, and thematic styles creates inconsistent decisions and buys strategies after they have worked.
Confusing confidence with certainty
Confidence should come from a tested process, not from believing a position cannot be wrong.
Is it for you?
Best for
Students and developing investors who are exposed to many successful practitioners but have not yet formed a coherent personal process.
Not ideal for
People seeking a turnkey strategy that can be copied without experimentation, self-assessment, or sustained practice.
From the transcript
“I'm a big believer that investing's about finding your own compass, but I'm not reinventing a complete wheel.”
“The benefit of taking all this information in is to build your own investing compass, because what's really important investing is consistency and confidence.”
“We can't chase the latest trends.”
From the episode
From GameStop to Meme Stocks with Ricky Sandler
Ricky Sandler