
FP&A Today Secrets to a Simple Model: Peter Lynch
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Oct 8, 2025 Peter Lynch, founder of ASimpleModel.com and Chief Strategy Officer at Stephen Gould, shares his journey from investment banking to simplifying financial concepts. He explains the nuances of private equity, common modeling mistakes, and his innovative approach to teaching. Peter discusses the importance of mastering three-statement models, and how AI influences his work. Plus, he reveals his strategies for capital allocation and insights from the global financial crisis, all while emphasizing the value of community engagement in learning.
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Jumping To South America For Banking
- Peter moved to South America after cold-calling ~200 firms to land interviews and internships.
- He worked at J.P. Morgan in Santiago and Buenos Aires and experienced literal paper data rooms and 10-keying data for weeks.
Build Models From First Principles
- Rabobank taught Peter deep Excel skills and an 'A approach' of building models from scratch.
- He argues starting from fundamentals builds a stronger modeling foundation than relying on templates.
Cutting Teeth During The Financial Crisis
- Peter witnessed the financial crisis firsthand, walking home late with spikes of BlackBerry keys under his phone as layoffs happened.
- The experience taught him there is no certainty regardless of company scale.







