In one sentence: In a live recording after the 2018 Berkshire meeting, the author of Investing Between the Lines explains how to judge management's candor and culture from the words in annual letters: fewer clichés, more facts and detail, admitted mistakes, and changes in tone when culture or leadership shifts.
Key ideas
- Numbers aren't truth. Precise numbers can give a precisely wrong answer. Rittenhouse says that a long-term, partly subjective view of management and the business matters at least as much. [05:30–08:00]
- Management is the hardest of Munger's four filters. Phil recaps Munger's four (understandable, durable advantage, talented and honest management, a good price) and says management is the least numeric and the one students ask about most. [09:00–11:00, 31:00–32:00]
- Culture comes from leadership, and leadership shows in words. Her premise is that a leader's language shapes the future. She reads letters because they are the free-skate part of reporting: less lawyered than a 10-K. [10:00–11:00, 52:00–53:00]
- Measure "fog". Her acronym is fact-deficient obfuscating generalities. Low fog means plenty of facts and detail. Clichés ("employees are our greatest asset", "our brightest days are ahead") signal vagueness. [15:00–18:00]
- Amazon example. Bezos reprints the 1997 letter each year, and Amazon replaces slide decks with six-page memos. She says a drop in her ranking around 2005–06 coincided with R&D spending tripling, ahead of Kindle and AWS. Her account, not verified here. [17:00–23:00]
- Candor includes mistakes. At the meeting, Buffett and Munger talked about missing Amazon and Google. Danielle asks whether it's easy to admit mistakes after you've won. Rittenhouse gives extra credit to CEOs who say they were wrong. [23:00–25:00, 48:00–49:30]
- Jargon hides trouble. She says one bank's letter in 2009 broke into jargon exactly where it described a large counterparty exposure. A friend who didn't follow it thought he wasn't smart enough, which shows why fog is toxic: it switches off your critical faculties. [32:00–35:00]
- Watch for turns. A change of CEO is the key moment: look for whether the new letter shows a plan, a different tone or the old voice continuing. She cites Honeywell as a good handover and doubts Starbucks' and Wells Fargo's. [36:00–39:00]
- A missing letter is a signal. A company that stops writing one after a bad year is worth noticing. She also says many CEOs think fund managers don't read them. [38:00–41:30]
- Who the audience is. Shareholders, employees and potential acquirers all read them, and the letter should feel like meeting the CEO. [41:00–43:00]
- Letters aren't foolproof. Phil points out that a letter's mere existence doesn't mean it's informative, and that CEOs have incentives to blur. Rittenhouse counters that in her 100-company sample the candor scores form a bell curve, so some companies are clearly good. [43:00–52:00]
- Apple, ecosystems and the circle. They discuss Buffett's Apple stake as a bet on an ecosystem moat, with some disagreement about what he said at the meeting. [24:00–28:00]
How it maps to RuleOne
- The management stage of the stock page links letters and filings. Read the last two or three CEO letters, not just the numbers.
- A planned filings agent could flag CEO changes and quiet gaps (missing letters) as events.
- Insider-buy flags on the screen give a second check on whether words match behaviour.
Buffett, Munger and Graham links
- Buffett's Berkshire letters are the benchmark. Phil has said Buffett decided on Coca-Cola partly from reading its letter, which Rittenhouse repeats; check the sources before citing.
- Munger's BBC (2012) four filters appear here again (see 001).
- Buffett's admission of mistakes in the letters (for example the annual "mistakes" passages) is the candor standard.
Words to know
- Fog: Rittenhouse's measure, fact-deficient obfuscating generalities.
- Candor: plain, specific, honest disclosure including errors.
- Succession: the handover from one CEO to the next.
Try this
Open the most recent shareholder letter of a company on /stocks/ you hold or watch. Underline every cliché and every concrete fact or number. Count them, then write one sentence on whether you would trust the author with your money.
Check yourself
- What does "fog" stand for?
Answer
Fact-deficient obfuscating generalities: vague claims without facts. - Why is a CEO change a key moment for a letter reader?
Answer
The new letter shows whether the culture and candor continue, improve or fade. - Why does Rittenhouse prefer letters to 10-Ks?
Answer
Lawyers have less say in letters, so personality and candor show.
Short quotes
"The greatest CEOs write the greatest letters." (Rittenhouse, ~40:30, auto-transcribed)