Timing is difficult even if your fundamental analysis is right.  Stocks may be overvalued and still go up several years.<p>Shiller PE is over 26, stocks are clearly valued very high.<p><a href="http:&#x2F;&#x2F;www.multpl.com&#x2F;shiller-pe&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.multpl.com&#x2F;shiller-pe&#x2F;</a>