The Most Extreme Mistakes in Berkshire's History

The mistakes that have been most extreme in Berkshire's history are mistakes of omission. They don't show up in our figures, they show up in opportunity costs. In retrospect, we can tell that we were very much mistaken not to do it. When I was somewhat younger, I was offered 300 shares of Belridge oil. An idiot could have told it was no possibility of losing money and a large possibility of making money. But this time I had to sell something to buy the damn BelridgeOil. That mistake, if you traced it through, has cost me 200 million dollars. And I had to go to a slight inconvenience and sell something. It's an awesome amount of money. We