In 2008, the TLT (a bond ETF) went up in value, whereas the Dow crashed. In 2009, the TLT declined in value, whereas the Dow began its new bull market. But in 2011, that traditional correlation changed. In 2011, the bond market started to rise in correlation with the stock market. The bond market didn't rise in an escalator like fashion such as the stock market, but it did rise in correlation with the stock market. Read more