13 Jun 2026
Signal Headquarters
Vol. I
No. 16
Reference

What is Warren Buffett

Warren Buffett is an investor often referred to as the ‘god of investing,’ known for a concentrated portfolio where a small number of decisions drive most of his wealth. The material tracks his investment philosophy, his long-term holding approach, and his recent foray into Japanese equities.

  • Mar 2026 - Mohnish Pabrai said Buffett has a 4% hit rate, with only 12 out of at least 400 investment decisions mattering.
  • Mar 2026 - Mohnish Pabrai noted that for Buffett, the key was not the buy decision but that he never sold.
  • May 2026 - Neeraj said Buffett created 98-99% of his total wealth after age 65.
  • May 2026 - Mohnish Pabrai said Buffett had been going through the Japan Company Handbook for at least 20 years before making his Japanese bets.
  • Jun 2026 - Luke Gromen said the adjusted Warren Buffett metric is higher than in 1Q2000 and 4Q21, the only time in 65 years.
  • May 2026 - Kai Wu said 84% of Buffett’s investments were purchased with a price-to-book above one.
Signal Headquarters · reference note, compiled from attributed expert discussion.