The yield on 10-year Treasury notes was trading at 4.695% on Tuesday, the highest since April, after closing at 4.616% on Monday. The latest pop in yields came after economic data showed activity in the U.S. services sector has picked up more than expected, posing a risk of renewed inflation as the Federal Reserve continues to loosen up monetary policy. At the same time, the Treasury Department is getting ready to sell $39 billion worth of 10-year notes and $22 billion in 30-year bonds on Tuesday and Wednesday, respectively.