So much for sell in May and go away. The S&P 500 has hit another all-time high and is on track for the best June in more than 60 years (since 1955). New public offerings have exploded, with Beyond Meat and Slack the most recent wunderkinder. Companies are racing to go to the market. They know that with valuations at all-time highs and the risks rising, now is the time to sell at the best price they will likely get.


