The average long-term U.S. mortgage rate climbed this week to its highest level in nearly nine months, driving up borrowing costs for homebuyers during what’s traditionally the housing market’s busiest time of the year.

The average long-term U.S. mortgage rate climbed this week to its highest level in nearly nine months, driving up borrowing costs for homebuyers during what’s traditionally the…

Turmoil in the bond market, fueled by the war with Iran, is sending US mortgage rates higher and threatening to make buying a home even more expensive.