Ten-year Treasury yield tops 5 per cent as Bessent defends his bond toolkit

The 10-year Treasury yield topped 5 per cent again as the Fed’s chair spotlighted inflation risk¹. The effective interest rate on US government bonds over 10 years rose as high as 5.04 per cent before easing back, the highest level since 2007^2,3.

After the rate decision the 10-year rose two basis points to 5.012 per cent⁸. At the far end of the curve the 30-year slipped 1.1 basis points to 5.352 per cent, having touched its highest in over 24 years in the previous session¹. The curve bear flattened, with short maturities taking the hit while long bonds held¹², and the two-to-10-year spread is back below 30 basis points⁹.

Why it matters to investors

Treasury Secretary Scott Bessent defended his bond-buying intervention as a success on Capitol Hill, arguing the US bond market is the best in the world⁴, and defended the buyback programme in contentious congressional hearings³. Reuters Breakingviews described his campaign to lower yields since August as quixotic, noting buybacks of 2 billion or 4 billion dollars apiece⁵. Morningstar reported growing scepticism about the size of Bessent’s toolkit¹¹.

The arithmetic behind that scepticism is blunt. Outstanding debt stands at 40.1 trillion dollars and costs taxpayers over 1.1 trillion dollars a year in interest payments, with debt to GDP at 123 per cent⁶. Higher yields across the Treasury curve raise net interest payments on that 40.1 trillion dollar total directly⁷. A 20-year bond auction had its worst showing ever⁶.

This is the rate that discounts every other asset. It is also the rate at which the government refinances itself, which is why the Fed’s tightening and the Treasury’s funding problem are now the same story^5,11.

What to watch

Not every signal points the same way. The Wall Street Journal reported Treasury yields falling as the market regained trust in the Fed’s resolve to bring inflation back to target in a timely manner¹⁰. That is the benign reading: a credible central bank earns a lower term premium even while raising the policy rate.

The alternative reading is ING’s. Its rates team expects the 10-year to get above 5 per cent and stay there⁹. Watch the shape as much as the level, because a flatter curve driven by the front end says the market believes the Fed^9,12, while a steeper one driven by the long end says it is worried about the debt⁶.