
The S&P 500 posted its first negative "named" decade ever from 2000 to 2009. That means, if you invested $1 in the S&P 500 at the beginning of '00, you would have had 91 cents at the end of '09. So, were the 2000s the "lost decade" for investors? Not for all -- investors who maintained diversified portfolios actually fared much better.












