A relentless selloff in sovereign debt drove the benchmark 10-year US Treasury yield to its highest level since July 2007 on Tuesday, sending borrowing costs surging across the financial system. The yield spiked as high as 5.041 percent before consolidating near 5.01 percent, crossing the psychologically vital 5 percent threshold for the first time in nearly three years. The surge caught fixed-income desks in a crosscurrent of geopolitical energy shocks, persistent inflation prints, and mounting anxiety over the federal government debt load[1].
The immediate catalyst for the rout is a dramatic recalculation of the interest rate trajectory by market participants on the eve of the Federal Open Market Committee policy announcement. Yields on short-term two-year Treasuries surged to 4.68 percent, while 30-year bond yields climbed above 5.38 percent. With debt markets pricing in borrowing costs that could remain elevated for years, the fallout spread quickly into risk assets, dragging major equity benchmarks lower and ratcheting up mortgage rates for American households.


