Last year, a record 41 percent of Harvard’s 2008 graduate M.B.A. class went into market sensitive positions — a major “sell” signal. And that signal was wrong.

Last year, a record 41 percent of Harvard’s 2008 graduate M.B.A. class went into market sensitive positions — a major “sell” signal. And that signal was wrong. If you looked at this last year and sold, you would have missed out on a 20% rise in stock prices. So, another indicator that goes in the "big maybe" pile.