The City of London is waking up to a distinctly queasy feeling this morning. Gilt yields are twitching, the pound is sliding, and the chatter in the Square Mile has taken on a tone of barely concealed alarm. The trigger? A fresh wave of tech-led volatility that has sent shockwaves through global equity markets, with London’s FTSE 100 not immune to the contagion.
The numbers tell a grim story. Overnight, the tech-heavy Nasdaq Composite fell more than 2 per cent as investors fled growth stocks amid fears of aggressive rate hikes from the Federal Reserve. The sell-off quickly crossed the Atlantic: the FTSE 100 opened nearly 1 per cent lower, with the more domestically focused FTSE 250 shedding even more. But the real drama is in the bond market. The yield on the 10-year gilt has spiked above 1.5 per cent, a level not seen since the chaotic aftermath of last year’s mini-budget. That is a clear signal that investors are demanding a higher premium for holding British government debt, and it is not a vote of confidence in the Treasury’s handling of the economy.
Why is the tech sector causing such jitters? The answer lies in the peculiar dynamics of the post-Covid world. Tech stocks, with their lofty valuations and promises of future profits, are acutely sensitive to changes in interest rates. When rates rise, the present value of those distant future earnings collapses. And with central banks now signalling that rates will stay higher for longer, the air is rapidly leaking from the tech balloon. That would be a problem for the US and China, but it is a particular headache for Britain. Why? Because London is a global hub for tech IPOs and venture capital. A sustained tech rout would not just hurt fund managers; it would damage the government’s cherished ambitions to make London a world-leading tech finance centre.
The Treasury is, of course, putting on a brave face. A spokesperson issued the usual platitudes about “market resilience” and “long-term fundamentals”. But behind closed doors, the mood is reportedly tense. Officials are acutely aware that the market’s current anxieties are not just about tech. They are also about the UK’s own fiscal position. The spike in gilt yields is a stark reminder that the markets have not forgiven the chaos of the Truss era, and any signs of fiscal indiscipline will be punished instantly. Chancellor Jeremy Hunt has staked his reputation on austerity and stability, but the numbers are not on his side. Government borrowing is still running at over £100 billion a year, inflation is proving sticky at around 4 per cent, and growth is virtually non-existent. That is a toxic combination.
What does this mean for the average investor? First, do not expect a quick rebound. Volatility is going to be the watchword for the next few weeks at least. Second, keep a close eye on the gilts. If yields rise much further, mortgage rates will follow, putting more pressure on households and the housing market. Third, be wary of the pound. Sterling has already fallen against the dollar this morning, and a prolonged sell-off in gilts could trigger another slide. That would push up import costs, making the inflation problem even worse.
The bottom line is this: the British economy is in a fragile state, and the tech-driven volatility is exposing underlying weaknesses. The Treasury can talk about resilience all it likes, but the market is not buying it. Investors are voting with their feet, and right now, they are heading for the exits. For those of us who have been around long enough to remember the 2008 crash, this feels uncomfortably familiar. It is not a full-blown crisis yet, but the ingredients are there: a vulnerable financial sector, a government with limited room for manoeuvre, and a market that is losing patience. Fasten your seatbelts.











