While the Fed may be raising rates, there is still a flight to quality underway that is giving a bid to US Treasury issues. Low Treasury yields may remain the norm even if the Federal Reserve raises rates again. At about 2.25%, 10-year yields have dropped to 2017 lows, even with the central bank signaling an imminent rate hike. Many still see the stock market crash and that also supplies a bit of an underlying bid right now. However, The Fed has also made it clear it will maintain a gradual approach to shrinking its massive bond portfolio thereby reversing the Quantitative Easing. We are in never-never-land where the Fed tightening will not yet have a direct impact upon the bonds on a one-for-one relationship.
....related from Martin: