German 10‑year Bund yields jumped to their highest since 2011, touching 4.3%, as Brent crude surged past $123 a barrel. The spike in oil prices reignited inflation concerns, prompting traders to price in tighter monetary policy. Investors see ECB rate hike risk.

Across the Atlantic, 10‑year U.S. Treasury yields climbed to 4.4%, while British gilts hit their best levels in a month. Both markets reacted to the same oil rally, the strongest since the Israel‑Hamas war. Analysts warned that sustained high energy costs could force central banks to reassess rate trajectories, and could tighten borrowing conditions for corporates.

Investors scrambled for yield, pushing sovereign bonds higher and squeezing credit spreads. Portfolio managers with euro‑zone exposure now face higher funding costs, while commodity‑linked equities grapple with margin pressure. The episode underscores how quickly oil shocks can translate into tighter financing conditions, leaving debt‑heavy corporates and sovereigns vulnerable to renewed rate‑rise pressures as central banks signal less patience for inflation.