The US 10-year Treasury yield topped 5% on Tuesday — a level it hasn't seen since July 2007. Investing.com put the peak at 5.0266%, up roughly 86 basis points this year. The 30-year went with it to 5.3858%, and the 2-year hit 4.6819%, its highest since mid-2024. Trading Economics still had the 10-year around 5.01% this morning, so this isn't a spike that already unwound.

Why it broke now

Two separate things are pushing, and they're worth keeping apart.

The front end is a Fed story. Futures put 92–94.5% odds on a 25bp hike when the FOMC wraps today, taking the target from 3.50–3.75% to 3.75–4.00%. That would be the Fed's first increase since July 2023. Those odds were 87.3% a day earlier — the jump came from energy: Brent is near $109 after Saudi Arabia's Hormuz-bypass route went dark, and that lands on a CPI already at 3.4% and a PPI at 5.4%.

The long end is a supply story, which is the part the headlines skip. The 30-year at 5.39% sitting well above the 10-year says this isn't only about the policy rate. Governments worldwide are issuing more paper, and tech companies are floating large high-yield deals to fund AI infrastructure. All of it competes for the same pool of buyers.

Who actually feels it

Mortgages are priced off the 10-year. Freddie Mac's 30-year fixed averaged 6.76% in its September 10 survey — taken when the 10-year was near 4.8%. The ~20bp added since then hasn't shown up in that number yet, so the next print is the one to watch. That's a direct hit to order books at D.R. Horton, Lennar and PulteGroup. Auto lenders index to the 5-year, where 60-month loans already run near 7% — that's GM and Ford financing more expensive metal into a weaker buyer. Full board on movers.

The one thing that flips it

The FOMC statement and dot plot at 2pm ET today. If the Fed hikes and the dots signal that's the last one, the long end has room to unwind. If it hikes and leaves the door open — or holds, which Trading Economics notes markets could read as going soft on inflation — 5% becomes the floor rather than the ceiling. Then the Bank of Japan on September 17–18, also above 90% odds: the first simultaneous US–Japan hike since July 2006 would give Japanese capital a reason to stay home instead of buying Treasuries. Both are on the calendar.

As of 14:45 IST / 05:15 ET, Wed 16 Sep 2026. Sources: Investing.com, Seoul Economic Daily, Trading Economics, Freddie Mac PMMS. For discussion and education only — not investment advice. Verify before acting.