Global government bonds posted their worst quarter in two years as the 10-year US Treasury yield surged 81 basis points in Q3, reaching a 19-year high. The move reflects markets pricing in an extended period of elevated rates after central banks, including the Federal Reserve, shifted hawkish in September.
Japan's 10-year government bond yield climbed 42 basis points in the same quarter—its largest quarterly increase in over two decades—underscoring the global scope of the repricing.
Inflation expectations drove much of the volatility. Oil prices spiked to $100 per barrel, reigniting recession concerns and cementing expectations for sticky price pressures. Central bank communications in early September signaled rate cuts will arrive later than markets previously anticipated, forcing a swift repricing of the entire yield curve.
The higher yield environment has restored some appeal to government bonds as income vehicles, but hesitation persists. Elevated government debt levels across developed economies—particularly concerning long-dated securities—weigh on institutional positioning.
Equity markets have largely decoupled from bond stress. Capital flows remain tilted toward artificial intelligence infrastructure plays, though the scale of capex required for AI buildout has created underlying unease about returns on that investment.
Upcoming data will test whether yields stabilize or resume their climb. Germany's August retail sales, UK second-quarter GDP, and September CPI figures for France and Germany are due this month. October will bring US employment and inflation data, French budget deliberations, a UK budget announcement, and anticipated debt issuance from technology firms—each a potential catalyst for further yield movement.
