The 10-year U.S. Treasury yield climbed 1 basis point to 5.005%, lingering near the 5.041% high reached Tuesday—a level not seen since 2007. European debt mirrored this caution, with the 10-year Bund yield rising 1.4 basis points to 3.553%. Money markets currently price in a 91% probability of a rate hike, reflecting a consensus that the Federal Reserve must act decisively to stabilize the selloff.

Strategists remain divided on whether this threshold marks a definitive peak for debt costs. Arif Husain of T. Rowe Price warned that a 6% yield remains a plausible outcome, driven by a combination of surging sovereign debt supply and stubborn inflation. Conversely, some analysts suggest that aggressive intervention could eventually dampen long-term rates. For now, firms like Laffer Tengler Investments are maintaining defensive postures, citing a climate of deep uncertainty that precludes a sustained rally.