Reblog: Jim O’Shaughnessy: 25 Timeless Lessons From 30 Years Of Value Investing


One of our favourite value investors here at The Acquirer’s Multiple is Jim O’Shaughnessy.

O’Shaughnessy recently wrote an awesome series of tweets detailing twenty five investment lessons that he’s learned over thirty years of value investing. They’re a must read for all investors.

With Jim’s permission here are his twenty five timeless investing lessons:

  1. I have been a professional investor for over 30 years. What follows is some things I think I know and some things I know I don’t know. Let’s start with some things I know I don’t know.
  2. I don’t know how the market will perform this year. I don’t know how the market will perform next year. I don’t know if stocks will be higher or lower in five years. Indeed, even though the probabilities favor a positive outcome, I don’t know if stocks will be higher in 10 yrs.
  3. I DO know that, according to Forbes, “since 1945…there have been 77 market drops between 5% and 10%…and 27 corrections between 10% and 20%”. I know that market corrections are a feature, not a bug, required to get good long-term performance.
  4. I do know that during these corrections, there will be a host of “experts” on business TV, blogs, magazines, podcasts and radio warning investors that THIS is the big one. That stocks are heading dramatically lower, and that they should get out now, while they still can. Continue Reading