The selloff in global government bonds accelerated in European midday trade, pushing yields on 10-year German Bunds and Treasurys to fresh multiyear highs. Investors are bracing for the European Central Bank's upcoming policy decision, with markets anticipating potential shifts in monetary stance. Simultaneously, the U.S. Treasury's ongoing buyback program is influencing demand dynamics, adding pressure to long-end yields.

The confluence of central bank expectations and sovereign debt management has intensified volatility across fixed-income markets. Analysts note that rising yields reflect both inflation concerns and evolving fiscal supply conditions, particularly in the eurozone and United States.