10-year Treasury yield rose nearly 50 basis points in September to above 5.27%

The benchmark 10-year U.S. Treasury yield rose nearly 50 basis points in September 2026 to above 5.27% on September 29, Reuters reported, a 19-year high. A basis point is 0.01 percentage point. Higher long-term yields tend to raise borrowing costs for mortgages and businesses. I see the pace of the rise as the key pressure to watch.