Municipal bonds are currently undergoing a substantial selloff, leading to benchmark yields reaching their highest points since at least 2011. This "violent" rout is largely attributed to renewed inflation concerns, anticipation of further interest rate increases, and a surge in oil prices, all of which are exerting considerable pressure on financial markets.

Specifically, the yield on 10-year state and local debt increased by nine basis points, reaching 3.87% as of 4 p.m. New York time. This marks the highest yield recorded since January 2011. Similarly, benchmark 30-year municipal bond yields jumped eight basis points to 4.96%, a level not seen since February 2011.

This trend in the municipal bond market mirrors a broader selloff in US Treasuries, which has also driven benchmark yields higher across the board. The collective impact of these factors suggests a challenging environment for fixed-income investors as they grapple with evolving economic indicators.