Is the market run-up sustainable? Probably not, says Doug Kass. February 1, 2013 Jack The Big Picture Comments Off on Is the market run-up sustainable? Probably not, says Doug Kass. Too many investors are bullish, and happy right now says Doug Kass. Did you enjoy this article? Join our FREE Newsletter! I agree to have my personal information transfered to MailChimp ( more information ) Join over 100,000 investors and business leaders worldwide. Get the latest actionable business and investing intelligence before the rest of the crowd.We hate spam. Your email address will not be sold or shared with anyone else.