Ceridian-UCLA Pulse of Commerce Index

We all know the stock market can be irrational. It can be brazenly optimistic such as Nasdaq 5,000; and it can be completely despondent like last year's Dow 6,550. So, with the S&P 500 (SPX) falling 14% since it's April peak, is the stock market acting irrationally once again? A little-noticed...