Treasury yields lose shock value, investors start worrying about 6%

Investors are starting to treat 6% as the next psychological ceiling after the U.S. 10-year Treasury yield briefly broke above 5% this month. The idea isn’t that markets automatically “trip” at 5%, but that investors watch yields in relation to other benchmarks, particularly the earnings yield on stocks. BlueBay Asset Management’s Mike Bell said the key is the relative comparison, not a single magic number. Historical examples cited include MSCI’s global index halving during the prior episode when the 10-year yield broke 5% before the 2008 crash, and another major slump tied to a near 6.8% spike around the dotcom era. JPMorgan points to a structural shift: AI, healthcare and services are expanding even if borrowing costs rise, making the interest-rate transmission to stocks less binding. JPMorgan suggests stock-market thresholds may move higher, potentially into the 5.5%–6.0% range.