US 30-year treasury yield hits fresh four-year high

• The long-duration treasury yields continue to rise.
• The yield curve steepening may embolden the hawks at the Fed.

The yield no the US 30-year treasury note rose to a fresh four-year high of 3.4302 percent in Asia.

Meanwhile, the spread between the 30-year yield and the 5-year yield 35 basis points - the highest level since May 29.

The steepening of the treasury curve - yields at the long end rise more than the yields at the short end - could embolden the Fed that it can continue to tighten further.