The yield on the US 10-year Treasury note climbed to 4.70% on July 23, its highest reading since January 2025, reigniting debate over whether the Federal Reserve will move to raise rates before the year is out.

Markets are already repricing the odds. The probability of a Fed rate hike by the September 15 16 meeting has jumped from 32% just a week ago to 61% now. That's a sharp shift in a short window, and it reflects more than just one data point.

Warsh's credibility in the spotlight

Part of what's driving the move is speculation around Fed Chair Kevin Warsh. Some market watchers argue that how the Fed responds to this yield spike will serve as an early test of Warsh's resolve on inflation. A chair seen as soft on rising long-term rates risks losing credibility with bond investors fast.

The 10-year yield functions as a benchmark for mortgage rates, corporate borrowing and long-term inflation expectations, so a sustained push above 4.70% would ripple well beyond Treasury desks. Upcoming inflation prints and any hawkish signals from Fed officials ahead of September will be the next pressure points to watch.

This article is for informational purposes only and does not constitute financial advice or an investment recommendation.