Since the pandemic, the influence of global markets on the UK has intensified. Approximately half of the movements in the UK's government bond (gilt) yield curve are now driven by external factors, primarily from the U.S. and Eurozone, up from one-third pre-pandemic.

Despite UK 10-year gilt yields approaching multi-year highs near an upcoming budget, this is not a sign of rising idiosyncratic fiscal risk. The move is primarily attributed to global factors, energy prices, and broad central bank repricing. Indicators like the 2s-10s gilt curve are moving in line with other developed markets, not pricing in UK-specific fiscal concerns.

The Chancellor's upcoming Spring Statement is expected to be a deliberate non-event with no fiscal policy changes. The key focus for markets is the Debt Management Office's (DMO) issuance plan. A smaller-than-expected reduction in the maturity of new debt could disappoint some market participants, leading to a modest rise in UK bond yields.

Recent increases in emerging market rates are accompanied by flattening or stable long-end yield curves. This suggests markets are pricing in central bank rate hikes to control inflation, rather than reacting to worsening fiscal concerns, which would typically cause the curve to steepen.

Any knee-jerk steepening of the UK gilt curve after the upcoming by-election and a potential Labour leadership change should be viewed as a trading opportunity to fade. It is too early to price in fiscal implications; the real risk premium will only become a factor closer to the autumn budget.

Despite a major by-election result opening the door for a new Prime Minister, UK gilt markets remain largely unmoved. This demonstrates that bond markets will only price in a political risk premium when there are clear and immediate implications for fiscal policy, which is not yet the case.

The recent rise in UK 10-year and 30-year gilt yields to multi-year highs is not due to UK-specific fiscal concerns. Instead, the sell-off is primarily explained by global factors, particularly the strong correlation with and spillover from US Treasury yield movements, rather than a repricing of UK fiscal risk.

In a global environment where risk premiums are scarce, the UK government bond market stands out for offering significant compensation to investors. For example, the market is pricing a 10-year gilt yield of 6.6% ten years from now—a very high rate that suggests a significant gap between market perception and potential economic reality.

Despite significant UK political news, including a potential Labour leadership challenge, the UK gilt market has shown minimal reaction. Gilt yields are primarily driven by global factors like energy prices and moves in German Bunds and US Treasuries, indicating that political risk is currently a low priority for investors.