TLT & SPY

For the past five years, TLT and SPY are completely complementary to each other. This graph shows that TLT and SPY are mirror image of each other.

http://www.google.com//finance?chdnp=1&chdd=1&chds=1&chdv=1&chvs=maximized&chdeh=0&chfdeh=0&chdet=1318384048431&chddm=494615&chls=IntervalBasedLine&cmpto=NYSE:TLT&cmptdms=0&q=NYSE:SPY&&fct=big