The US 30-year yield climbed to its highest level so far this year Wednesday after poor demand for an auction of five-year notes, a week before the Treasury is expected to announce a heavier borrowing schedule for the February-to-April period. The longest-maturity Treasury yield rose more than 4 basis points to 4.407%, its highest level since Dec. 5. Yields across maturities were already higher on the day before the $61 billion auction at 1 p.m. New York time and propelled by stronger-than-expected gauges of economic activity in January. Bonds eroded further after the auction drew a yield of 4.055%, compared with an ... (full story)