Two Hypotheses About the Sage, by Victor Niederhoffer
Hypothesis One, by Victor Niederhoffer:
Whenever BRK big breaks through 100000 one way or the other it's wrong for the market.
Hypothesis Two, by Daniel Grossman:
Whenever Buffett pays stock rather than all cash (e.g., for General Re), he is bearish about the market. It's his only available way of selling BRK stock.