Global yields fall after US Treasury boosts debt buybacks

Global bond yields fell after the U.S. Treasury Department announced it would double liquidity support buyback operations for longer-dated securities to $4 billion per operation. This move followed a broad selloff driven by worries about rising sovereign debt. The increase in government bond yields stemmed from a lack of demand, particularly in the less frequently traded "off-the-run" securities at the end of the Treasury curve.

As bond prices fall, yields rise, which impacts various asset classes, including mortgage rates, and poses risks to the broader economy. The U.S. dollar weakened, while gold and cryptocurrency prices surged due to concerns about the U.S. debt trajectory. Concerns about government debt typically undermine confidence in fiat currencies, leading investors to seek safer assets like gold.

The dollar index declined as oil prices rose, reflecting the impact of the Iran conflict on global oil markets. Long-term borrowing costs for countries such as Germany and Japan also increased, indicating growing anxiety about debt and inflation.