History shows financial calamities occur when rates rise rapidly like this: 'Something always breaks'

The yield on the 10-year Treasury note is rising to levels not seen in years. But it's not necessarily the outright level that's most concerning for those on Wall Street, it's the speed of the move. When rates climb at such a rapid pace, history tells them something bad tends to happen. The 10-year yield saw its most rapid one-day increase since April 7, 2025, on Wednesday, rising further on Thursday to top 5.17%, quite a move considering two weeks ago it was below 4.8% and at one point in August, it was below 4.6%. "Something always breaks," proclaimed a recent note from John Roque, head of technical analysis at 22V Research.