Michael Mauboussin

Mauboussin: Frequency vs. Magnitude

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March 17, 2014

Our last article on the uncontrollable nature of luck was just downright depressing. To lift spirits & morale, this article showcases more comforting content on factors that are within an investor’s control. The following excerpts are extracted from a piece by Michael Mauboussin written in 2002 titled The Babe Ruth Effect – Frequency versus Magnitude. […]

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More Than You Know: Chapter 1

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June 1, 2013

Below are numerous psychological gems extracted from Chapter 1 of More Than You Know by Michael Mauboussin. Also be sure to check out his thoughts on Process Over Outcome. Psychology, Sizing “The behavioral issue of overconfidence comes into play here. Research suggests that people are too confident in their own abilities and predictions. As a […]

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Mauboussin on Position Sizing

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May 1, 2013

Below are excerpts from an article written by Michael Mauboussin in 2006 on the importance of position sizing (Size Matters). For fans of the Kelly formula, this is a must-read. Mauboussin highlights a few very important flaws of the Kelly formula when applied to our imperfect, non-normally distributed world of investing. Sizing, Diversification “To suppose […]

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Montier & Mauboussin: Process Over Outcome

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April 16, 2013

James Montier’s Value Investing: Tools and Techniques for Intelligent Investment is a book I often recommend to others – Montier does a wonderful job of pulling together a range of topics related value investing. Below are excerpts from Chapter 16 titled “Process not Outcomes: Gambling, Sport and Investment.” Montier derived much of the content below […]

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Mauboussin on Portfolio Management

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December 27, 2012

Michael Mauboussin, author & former Chief Investment Strategist at Legg Mason, recently joined Consuelo Mack for an interview on WealthTrack (one of my favorite resources for interesting conversations with interesting people; the transcripts are economically priced at $4.99 per episode). Their conversation touched upon a number of relevant portfolio management topics. For those of you […]

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