Amidst the price surge unleashed by Middle Eastern turmoil sweeping across international debt arenas, the disposal spree in UK government bonds is conspicuous for its magnitude and rapidity.
On Friday, the United Kingdom’s 10-year lending rates surged to an 18-year peak of 5 percent, culminating in an increase of 0.78 percentage points since the hostilities commenced.
The collapse in short-dated public securities has proven even more severe. This market segment is poised for its most dismal period since the 2022 crisis, which ensued from the unfortunate “mini” Budget. This development erodes Chancellor Rachel Reeves’ assertion made this month that she had instilled steadiness in the economy.
This escalation in governmental lending expenses, which translates into substantially elevated debt costs for enterprises and households—given that mortgage agreements are also being withdrawn at their quickest tempo since 2022—has not been paralleled in other prominent markets. The equivalent yield on 10-year German Bunds has risen by 0.41 percentage points, whereas US benchmark lending rates have ascended by 0.37 percentage points.
Thus, amidst a worldwide energy upheaval, why are the debt market watchdogs specifically focusing on the UK?
The UK’s energy vulnerability
A contributing factor to UK government bonds enduring more hardship than major debt markets like US Treasuries is the economy’s heightened susceptibility to an uptick in oil and gas prices. Natural gas constituted approximately 35 percent of overall energy consumption in 2024, powering most UK residences. Conversely, Europe depends on gas for a mere fifth of its energy blend.
The United States is considerably more protected, having positioned itself as a significant energy supplier in recent years. This explains why traders have been speculating that the UK will be more susceptible to a surge in external price pressures: UK one-year inflation expectations have climbed by 1.8 percentage points since the dispute commenced, a larger escalation than observed in the US or the euro area.
Price increases are a bane to bonds, as they diminish the worth of the predetermined income streams these instruments provide and compel central banks to hike borrowing costs—a change in outlook that also drives debt yields upward.
Prior to the hostilities, inflation in the UK was already comparatively elevated at 3 percent, versus 1.9 percent in the euro area. Therefore, the upward trajectory as oil and gas prices skyrocket—with Brent crude exceeding $100 a barrel—originates from an elevated starting point, thereby necessitating a more rapid intervention.
Interest rate optimism has evaporated
The enduring price growth in the UK is a significant factor behind the Bank of England’s interest rate standing at 3.75 percent, in contrast to 2 percent in the Eurozone, and explains why UK financing expenses were already the loftiest in the G7 before war ignited in the Middle East.
However, UK inflation has been steadily declining over the past year, and traders approached the turmoil anticipating two quarter-point interest rate reductions by the BoE this year—surpassing expectations for some other prominent central banks—under the speculation that it would intervene to bolster a languishing economy as salary demands receded. Major fund managers were gambling that a UK bond resurgence since November’s Budget, which also alleviated certain worries about the UK’s formidable financing requirements, would persist with the aid of those interest rate reductions.
Soaring power costs have caused those speculations to vanish, with the market adjusting to foresee three quarter-point hikes to the BoE’s benchmark rate by year-end. The about-face on rates was prompted by the BoE itself, which on Thursday cautioned about price rises and signaled the possibility of future increases even while it maintained lending rates unchanged.
The outcome was among the “most furious divestments in history” for short-term government bonds on Thursday, as per Fidelity International fund manager Mike Riddell, with the two-year yield leaping 1 percentage point this month. “It is difficult to conceive that was the [BoE’s] intended outcome.”
A playground for hedge funds
However, the UK’s vulnerability to energy prices—and the BoE’s reaction—do not solely account for the intensity of recent bond fluctuations, financial observers contend. Instead, many highlight the attractiveness of the UK government bond market to risk-taking financiers like hedge funds.
The BoE has cautioned that the increasing sway of hedge funds possesses the capacity to worsen volatility in the gilt market, as these investors emerge as a rising power in UK government debt.
Firms that had amassed significant wagers on reduced central bank rates in recent months hastily abandoned those optimistic holdings as the market turned unfavorable, intensifying the divestment, analysts note.
Sharp fluctuations across financial markets have proven arduous for macro hedge funds. Caxton—which informed the FT in November of an incorrect valuation in UK yields and the potential for lending expenses to decrease—was among those affected negatively as yields and oil prices have escalated.
Su Liu, head of sterling rates trading at Citi, stated that “enduring investors are not hastily liquidating gilts,” but rather that a substantial wager had been placed on short-term British debt from “risk-seeking entities” prior to the hostilities.
Thursday’s BoE meeting generated renewed distress for traders who had re-entered gilts, assuming the disposition in the initial phases of the war was exaggerated.
“[The BoE] instigated a cascade of stop-losses from individuals who had attempted to challenge the market somewhat and believed it had extended excessively,” commented Barclays strategist Moyeen Islam.
The pressure on public finances
With the UK’s accumulated liabilities nearing 100 percent of GDP, the nation already allocates over £100 billion annually to debt servicing.
Elevated returns imply that routine financing by the government—with £250 billion of government bond issuances scheduled for the present financial period—entails a greater expense.
Investor apprehensions regarding the UK’s substantial indebtedness—which has been approaching unprecedented figures in recent years—have shadowed the Labour government since its inaugural fiscal plan in late 2024.
Currently, investors are concerned that provisions to shield UK consumers from the energy crisis are poised to aggravate the situation further, diminishing the £22 billion of flexibility Reeves possessed in the Spring Fiscal Update against her budgetary regulations.
Should investors become increasingly anxious that those constraints will be eased or breached, implying increased bond sales, they may proactively further elevate British bond returns.
However, some contend the BoE is improbable to react to a singular increase in energy prices with a succession of rate hikes, considering the risk to already feeble economic expansion. With the 10-year yield surpassing 5 percent for the first time since the worldwide economic downturn, there is a point where major capital holders will perceive an opportunity.
“At these substantially elevated UK government bond yields, we are discerning greater worth,” stated Paul Eitelman, global chief investment strategist at Russell Investments, on Friday.
Further contributions by Emily Herbert and Rachel Rees