Stocks Vs Bonds: Who's Lying?

 | Jun 10, 2016 11:14AM ET

Common wisdom tells investors that bond prices drop when stocks go up and vice versa; also know as risk on vs risk off. This is for most of the time a true negatively correlated relationship. But, what happens when this correlation disappears? Lets take a look at the S&P 500, SPY (NYSE:SPY), and iShares 20+ Year Treasury Bond (NYSE:TLT) since TLT's inception in 2002; see figure below.