John Montgomery, Bridgeway Capital Management - A Factors-Based World View Resonated With Me | #323

Episode Summary

Executive Summary: This episode of the MedFavor Show features John Montgomery, founder and CIO of Bridgeway Capital Management, a multi-billion dollar quantitative investment firm. The conversation covers his unconventional career path from urban transportation to launching a quantitative firm, his rules-based investment philosophy centered on factors like size, value, and low volatility, and the unique structure of Bridgeway which donates half its profits to charity with a focus on ending genocide. Key themes include the enduring power of small-cap and value investing, the behavioral challenges of staying disciplined, and the importance of saving and long-term perspective.

Main Topics: Origin Story and Path to Quantitative Investing (Priority: 5/5): John Montgomery's transition from urban transportation to founding a quantitative investment firm, inspired by a Harvard Business School case study and a behavioral finance insight about overconfidence. He started as a hobby investor before making it his career. Factor Investing Philosophy: Size, Value, and Low Volatility (Priority: 5/5): Exploration of Bridgeway's core investment pillars: small-cap (especially 'ultra-small' micro-cap stocks), value (buying cheap, contrarian), and low volatility. The discussion includes the surprising low-vol effect and its behavioral underpinnings. Unique Corporate Structure: Profit Sharing and Long-Term Thinking (Priority: 4/5): Bridgeway donates half its profits to charity (with a focus on ending genocide) and saves the rest for a 'rainy day fund' to avoid layoffs in downturns. The firm has a multi-generational ownership structure designed for permanence. Risk Management and Discipline in Investing (Priority: 4/5): Importance of avoiding leverage, having an appropriate asset allocation, writing down a plan and sticking to it, and having an emergency fund. Lessons from the Great Depression and the 2020 pandemic. Saving and Behavioral Finance for Individual Investors (Priority: 3/5): The single biggest factor in investment success is saving rate and starting early. Behavioral pitfalls like overconfidence and the disposition effect (selling winners too early) are discussed. Philanthropy and Peacebuilding Efforts (Priority: 4/5): Bridgeway Foundation's work to end genocide, including innovative methods like dropping leaflets with mothers' voices calling child soldiers home. The book 'To Stop a Warlord' details these efforts.

Key Arguments: Small-cap and value premiums persist, especially in ultra-small, less liquid stocks where large institutions cannot easily play. 'Teeny tiny' stocks offer a diversification and return advantage. The low-volatility effect challenges traditional risk-return models: lower risk (measured by standard deviation) stocks have historically performed better, likely due to behavioral factors. The single most important factor for individual investors is saving rate, not investment selection. Compounding works best when starting early and saving consistently. Leverage should be avoided. Historical analysis of the Great Depression shows an 86% peak-to-trough drop would wipe out leveraged investors. Bridgeway's structure of giving away half its profits and being a multi-generational firm is a competitive advantage, attracting like-minded talent and providing stability.

Data Points: Ultra-small market cap top end: $280 million - Approximate top end market cap for Bridgeway's 'ultra-small' strategy; average is significantly lower. Ultra-small stock representation in Russell 2000 microcap index: 17% - Only 17% of the Russell 2000 microcap index is represented in Bridgeway's ultra-small definition. Ultra-small share of total US exchange dollars: 0.33% - Ultra-small stocks represent about one-third of 1% of all dollars on US exchanges. Dow Jones peak-to-trough decline during Great Depression: 86% - Used to illustrate the risk of leverage and the importance of long-term horizon. Number of stocks in Bridgeway ultra-small strategy: 500 - The strategy holds around 500 'teeny tiny' stocks for diversification and factor exposure. Time to break even for Bridgeway as advisory firm: 3 years - Three years to break even, longer than the business plan of under half that time, teaching humility.

Pivotal Quotes: "You're saying that lower volatility, less risk, and lower risk companies do better in the long term. Like that, how can that be? That rocked my world. That's where behavioral finance got to be a bigger piece of the pie for me." — John Montgomery: Reacting to the low-volatility anomaly, which challenged his risk-based factor worldview and introduced behavioral finance. "The single biggest thing you can do over a lifetime that makes a difference is adjusting your spending relative to your revenues, which means save and invest." — John Montgomery: His core advice for individual investors, emphasizing the primacy of saving rate over investment performance. "We give half of our profits away and we save and invest the other half for what we call our rainy day fund. So, in a downturn, rather than laying everybody off or closing up shop, that's when we selectively hire because that's when great people are available." — John Montgomery: Explaining Bridgeway's unique structure and its rationale for long-term stability and competitive advantage.

Implications: For investors, the key takeaway is that factors like size, value, and low volatility can provide long-term returns, but require patience and discipline. For the industry, Bridgeway's model of charitable giving and multi-generational ownership offers an alternative to the typical exit-driven approach, potentially fostering more stability and purpose-driven investing.