The 10-year Treasury yield climbed to 5.01 percent on Monday, up 3.51 basis points on the session and the highest level since October 2023, as a jump in oil prices revived bets that the Federal Reserve will hold rates higher for longer and a wave of corporate debt issuance flooded the market with fresh supply.

The oil catalyst

Oil's surge put inflation back in focus. Price pressures were already running well above the Fed's 2 percent target before the latest energy move, giving traders reason to price in a more restrictive path.

The supply side

Heavy issuance amplified the backup. Companies financing record spending on artificial intelligence have added to the volume of bonds competing for buyers, limiting the prices sellers can command.

The equity threshold

Some analysts treat 5 percent on the 10-year as a line where bonds start to compete more seriously with stocks, potentially drawing capital out of equities.

The pass-through

Higher yields feed directly into mortgages, auto loans, consumer credit, and borrowing costs for corporations and municipalities, tightening financial conditions across the economy.