DXY trip top on the weekly is a strong signal for USD reversal. In my opinion USD was already devaluing for some time but large group of speculators have kept it high longer than ever expected.
On this chart also my preferred equally weighted index (EWI) of USD, which simply measures USD strength against the basket of major currencies, each equally weighted. This is different from DXY which weighs more towards EUR and includes Swedish Krona and not all majors..
The EWI is making an interesting curve, different from DXY since mid June last year. It was likely the FED interest announcement speech at that time which caused speculators to keep buying the USD for a long time after that.