The great tech unwind has arrived, and it is not pretty. Asian equity markets suffered their worst session in months overnight as a brutal sell-off in technology shares spread from Tokyo to Shanghai, sending benchmark indices tumbling. The Nikkei 225 closed down 3.2%, its steepest drop since the collapse of Silicon Valley Bank. South Korea’s Kospi fell 2.8%, while Hong Kong’s Hang Seng shed 1.9%. But here in London, the FTSE 100 barely flinched, slipping a mere 0.3% in early trading. The divergence tells you everything about where the smart money is heading.
The trigger? A perfect storm of profit warnings from Taiwanese semiconductor giant TSMC and a surprise spike in US bond yields. The 10-year Treasury yield pushed above 4.5% as the market finally realised that the Federal Reserve is not riding to the rescue anytime soon. For the tech sector, which has been priced for a nirvana of low rates and endless growth, this is kryptonite. Valuations that made sense at 2% yields look absurd at 4.5%.
The capital flight from Asian equities into UK gilts and defensive sectors is palpable. The 10-year gilt yield actually dipped 5 basis points to 4.12% as safe-haven buying emerged. Sterling, curiously, weakened marginally against the dollar, suggesting that foreign investors are not fleeing London but rather rebalancing out of risk assets globally.
Let us be clear: this is not a repeat of the 2008 financial crisis. The banking system is not the problem. This is a market efficiency correction. The tech bubble inflated by central bank liquidity and hype over AI is deflating. The Nikkei had doubled in five years on the back of a weak yen and tourism boom. The Hang Seng was still priced for Chinese economic miracle stories. Both were due for a reality check.
The question now is whether London’s resilience is a temporary safe haven or the beginning of a broader rotation into value. The FTSE is heavy with energy, mining, and pharmaceuticals. These are sectors that generate real cash flows and pay dividends. When the speculative froth evaporates, that is where capital gravitates. I have seen this playbook before: in 2000, in 2008, and in 2022. The pattern is always the same.
However, do not mistake London’s calm for invincibility. If the Asian sell-off spreads to European tech and drags down sentiment, the FTSE could get caught in the downdraft. The correlation between global markets is not zero. But for now, the difference is striking. Investors are voting with their feet, and they are choosing fiscal discipline and mature industries over growth dreams that never came true.
Central bank policy remains the elephant in the room. The Bank of England has been more cautious than the Fed, keeping rates at 5.25% while inflation has drifted down to 2.3%. That relative stability is a magnetic force for capital fleeing the volatility of the East. The market is effectively pricing in a two-speed world: an Asia driven by tech irrationality and a London anchored by real economy.
Will this last? Only if the Asian sell-off does not become a rout. Watch the yen. If it breaks below 160 against the dollar, the Bank of Japan will face a crisis. That would trigger a wave of carry trade unwinding that could hit all risk assets, including London. But for now, the bottom line is clear: the tech bubble has burst in Asia, and London is holding its nerve. The market is sending a signal. Listen to it.
