Rising oil prices push global bond yields to multi-year highs as inflation fears mount

Global bond markets extended their selloff on Monday as rising oil prices intensified worries that inflation may stay higher for longer, sending yields in the United States, Japan and other major markets to fresh highs. The move rippled across currencies and stocks as investors reacted to the worsening outlook for energy costs and the possibility that central banks will have to keep policy tighter for longer.

In the U.S., Treasury prices fell again, pushing the yield on 30-year bonds to its highest level in almost three years, according to Bloomberg. Japan’s benchmark bond market was also hit hard: a five-year government bond auction drew weaker demand than its 12-month average, underscoring the pressure on Japanese debt as inflation fears spread globally. Bloomberg reported that Japanese government bond yields have climbed to multi-decade highs, with the country increasingly leading the global downturn in bonds.

The immediate trigger remains the surge in oil prices, which has been tied to the deadlock over the Iran war and the uncertainty surrounding the Strait of Hormuz, a crucial shipping route for global energy supplies. Bloomberg reported that the United States and Iran remained far apart on any deal to end the conflict and reopen the waterway, while gold, copper and other commodities also reflected the same inflation concerns. When oil rises sharply, it can feed through to transport, production and consumer prices, making it harder for central banks to bring inflation under control.

The selloff was not limited to the bond market. Indonesia’s rupiah hit a record low as local markets reopened after a holiday, while stocks and bonds fell in step with the broader global rout. In India, Bloomberg said the jump in global yields is adding to pressure on equities already weighed down by a weak rupee. In Britain, FTSE 100 futures slipped as oil prices climbed, while the pound stalled.

The broader concern for investors is that higher energy costs could complicate the outlook for growth just as policymakers are trying to balance inflation risks against slower economic momentum. Bloomberg’s market wrap noted that the rising oil price has increased bets that central banks may need to maintain restrictive settings for longer, even as some economies face signs of strain. For now, the bond market’s message is clear: investors are bracing for a more inflationary environment, and they are demanding higher returns to hold government debt.