TBT stands for "The Bottom Trade".
We may be at a bottom in interest rates. There may be a period of change, but I think we are in the first stages of a world inflation. Most of the talking heads do not recognize that this is what is going on.
The negative interest rates in Europe is driving money to U.S. higher yields. This at a time when the U.S. economy is doing well. The Fed has no control over interest rates. They can not raise short term for fear of crashing the banks as long term rates are much too low. All this supports the US Dollar, paradoxically. As soon as it is recognized that there is a turnaround in Europe, the money flows will reverse and crash the Dollar and may well change the reserve currency status of USD. This will inflate the world. Probably a couple years off. In the mean time the U.S. markets will enjoy an increasingly hotter economy. Real Estate is already booming and no one is noticing.... Silver and Gold holding up very well as Brexit fears subside... China is starting to support the Yuan.....