UK gilts experienced their best week in nearly two years following a series of favorable economic and political developments. A key driver was Labour frontrunner Andy Burnham's commitment to UK fiscal rules, providing market relief. This political assurance, combined with lower-than-expected inflation at 2.8% in April and a 13-month low in business activity, fueled the rally. Oil prices also declined throughout the week, further easing inflation concerns.
The rally resulted in significant drops in gilt yields. Ten-year gilt yields fell by 0.26 percentage points to just above 4.9%, marking the largest weekly drop since August 2024. Thirty-year bond yields also saw a substantial improvement, falling 0.25 percentage points to 5.6%, their best performance since late 2023. This strong performance, especially pronounced in short- and medium-maturity gilts, reflects a dramatic repricing of Bank of England policy expectations.
Financial markets are now pricing in less aggressive monetary tightening, with swaps traders anticipating only two quarter-point interest rate increases by year-end, a reduction from previous expectations of two or three. Although UK borrowing costs remain the highest in the G7, analysts like Fraser Lundie at Aviva Investors note that the recent data has constrained the Bank of England's ability to implement more restrictive policies. This "relief rally" underscores the market's preference for tangible policy commitments over speculative forecasts, indicating growing investor confidence that the Bank of England's tightening cycle might be nearing its conclusion.
Conversely, the Bank of England has indicated it will not intervene directly to stabilize the gilt market despite recent volatility, opting for the market to find its own equilibrium. This stance has raised concerns among investors about a broader funding squeeze, as pension funds and insurers are already rebalancing their portfolios away from long-dated bonds. This approach could lead to primary dealers demanding higher premiums, potentially pushing long-term yields toward 4% and rekindling debates about fiscal sustainability, given the Treasury's reliance on gilt issuance for deficit financing. The Bank's hands-off approach will test the gilt market's depth following years of quantitative easing and introduces immediate pricing risk for holders of gilts.
