Fib levels play a very important role when it comes to Bonds, Forex and the Dollar Index, the moving averages and Fib levels are respected and they are used even when Elliott Wave Theory is not used.
We can see on the 10 Year Yield chart that it is an EWT and Fib level dream to read and the $DXY is no different.
Rejected already at the 0.5 Fib and a depreciating dollar looks set to continue along our projection.