Famous names think the market is about to Crash at any moment : George Soros, Marc Faber-
Others like the famous twin 2007-2008 - crash- realstate crash forescaster Nouriel Roubini think the market is not yet overvalued and it will hold for perhaps two more years.
Others like Prof. Jeremy Siegel think that the stock market could finish 2013 above 17000 due to market yield comparison against interest rates ,etc. . In fact he advises to keep investing saying that you cant go wrong.
Other less well know names think that when most market participants think one way the market usually turns the other way.
i believe that Teva has the potential to endure most market conditions due to his low beta .So it did endure fantastically well 2007-2008 market slide. Please check historical charts.