The City woke to a familiar chill this morning, but the source was not the autumn draft. It was the cold arithmetic of risk re-pricing. A double blow has struck the markets: a brutal sell-off in artificial intelligence stocks, which has wiped billions from the tech-heavy indices, and a sudden escalation in Iran hostilities.
For British tech investors, already nursing bruises from a volatile year, this feels less like a correction and more like a gut punch. The FTSE 100 opened down over 2%, with London-listed tech names like Darktrace and Sage taking a beating alongside their US counterparts. The rout began on Wall Street, where a disappointing earnings report from a major AI chipmaker triggered a cascade of stop-losses.
But the contagion spread fast. In London, the AIM index, a bellwether for growth stocks, lost 3.5% in early trading.
The timing is exquisite if you have a morbid sense of humour. Just last week, the Chancellor was touting the UK as a tech hub. Now, the air is thick with talk of capital flight.
Gilts, however, are offering no haven. The 10-year yield spiked 15 basis points to 4.35%, reflecting a double whammy of inflation fears and geopolitical risk.
The Iran news is the real game changer. A missile strike on a US base in Iraq has raised the spectre of a wider conflict, sending oil prices surging above $90 a barrel. For the Bank of England, this is a nightmare.
It was already struggling to tame inflation, and now a supply shock threatens to reignite price pressures. The market is now pricing in a 40% chance of a rate hike before year end. This is the worst of all worlds: stagflation fears with a side of geopolitical turmoil.
British tech investors should brace for more pain. The sector trades on 30 times earnings, a premium that looks unjustified when the cost of capital is rising and the global growth outlook is darkening. The smart money is rotating into defensives: utilities, healthcare, and consumer staples.
The miners are getting a bid on the oil spike, but that is speculative froth. The bottom line is this: the market is repricing risk, and British tech is paying the price. The Iran tensions may be transient, but the AI sell-off feels structural.
The era of easy money is over, and the hangover is brutal. For investors, the only safe harbour is cash. Keep dry powder for the inevitable bargains that will emerge when the panic subsides.
But do not mistake a correction for a buying opportunity yet. The market needs to find its floor, and that floor is not in sight.








