The UK gilt market has transformed from a stable bedrock of the economy into a temperamental asset class that overreacts to minor provocations. The spread on 10-year gilts versus German bunds widened from 1.65 percentage points to an intraday peak of 1.95 points, with yields briefly surpassing 5 per cent. Daily volatility has been more pronounced than in US or European government bond markets.

The deterioration stems from multiple sources. The September 2022 budget crisis under Liz Truss exposed structural vulnerabilities in the UK's financial system. Years of borrowing too much while growing too little created a tinderbox waiting for a spark. External shocks, including the US-Israeli conflict with Iran, have further fueled inflation and pushed bond investors to demand higher compensation.

The consequences ripple through the broader economy. Young families face not just higher mortgage rates but unstable availability of loan products. Corporate borrowers confront a less predictable cost of capital in what has become a "high-beta" market. At a critical moment for productivity-enhancing innovations in AI and green technology, the financial system struggles to deliver the risk capital Britain needs.

Restoring the gilt market's anchoring role requires sustained fiscal discipline, a deeper domestic financial system, and reforms to diversify the investor base. The UK faces the slow, painstaking work of rebuilding trust lost through years of external shocks, low growth, and fiscal slippages.