Tech shares slumped across Asia on Friday, October 30, 2026, as investors rushed toward safety amid growing worries that the huge and rising spending on artificial intelligence may not deliver sufficient returns. Bonds surged toward their biggest monthly gain in nearly three years, while haven currencies such as the yen and the Swiss franc strengthened.
Key Takeaways
- Alphabet shares fell 12.6% on Wall Street, wiping out about $500 billion in market value as massive AI spending turned its cash flow negative.
- Intel plunged 23% after hours and Amazon fell 7%, dragging Nasdaq 100 futures down 1.4% and sending Asian chipmakers into a tailspin.
- South Korea’s KOSPI slumped 5% and Japan’s Nikkei fell 3%, while bonds rallied after the Federal Reserve kept interest rates on hold.
Alphabet Leads the Sell-Off
Shares in Google parent Alphabet fell 12.6% on Wall Street and slid a little further after hours, wiping out about $500 billion in market value. The trigger, according to market reporting, was massive AI spending that turned the company’s cash flow negative — a sharp reversal of mood just a day after Alphabet had reported strong revenue growth.
The selling spread quickly beyond one company. An aftermarket plunge of 23% in Intel shares and a drop of 7% in Amazon shares, as they too burn through cash, drove Nasdaq 100 futures down 1.4% and sent stocks of chipmakers around Asia into a tailspin. The pattern was familiar from earlier sessions this week, when software stocks also slid on AI fears, but Friday’s moves were broader and sharper.
The market is increasingly questioning whether shareholders will earn an adequate return on the enormous capital being deployed.
That question now sits at the centre of the market debate. The market is increasingly questioning whether shareholders will earn an adequate return on the enormous capital being deployed, Pepperstone analyst Chris Weston said, adding that the issue is not necessarily whether the AI buildout can be financed. In other words, investors are not doubting that big technology companies can afford to spend — they are doubting what that spending will earn back, and how soon.
Asia Feels the Chill
South Korea’s KOSPI slumped 5% for an October fall of more than 17%. Japan’s Nikkei fell 3%. In China, the blue chip CSI300 headed for its largest monthly fall in a decade, after nearly four months of AI stocks falling on fears that a slowdown in demand for chips and other data centre equipment could crush revenues.
Nerves were also frayed by a potentially record-breaking hack at Binance, the world’s biggest cryptocurrency exchange, which drove down bitcoin, other cryptocurrency prices and stocks including rival exchange Coinbase. The combination of a crypto shock and an AI-spending shock in the same week left investors with little appetite for risk.
- Alphabet: down 12.6%, about $500 billion in market value wiped out
- Intel: down 23% after hours; Amazon: down 7%
- Nasdaq 100 futures: down 1.4%; KOSPI: down 5%; Nikkei: down 3%
- US 10-year Treasury yield: down more than 7 basis points in Tokyo trade to 4.91%
Bonds Rally as the Fed Holds
Investors’ rush into bonds was further spurred by the Federal Reserve’s Wednesday decision to keep US interest rates on hold, with no firm projection of when it might need to hike next. Benchmark 10-year US Treasury yields fell by more than 7 basis points in Tokyo trade on Friday to 4.91%, for a fall of some 37 basis points through October — the largest one-month drop since December 2023. Two-year yields dropped by more than 8 basis points to 4.57%, and Fed funds futures rallied as investors dialled back some expectations for US rate hikes. Yields fall when bond prices rise.
The Bank of Japan was expected to leave rates on hold later on Friday, in a decision that will cap a week of major central bank meetings. Investors were set to watch how the bank characterises the recent global bond market volatility, and whether it still regards monetary policy as accommodative or close to approaching neutral — a judgement that will guide the market for the pace and extent of further tightening in 2027.
The risk-averse mood strengthened haven currencies. The yen rose about 0.2% to 157.47 per dollar and the Swiss franc traded at 0.8213 to the dollar, not far from a one-month high. The euro inched up 0.1% to $1.1194.
What to Watch Next
What happens next depends on whether technology companies can show that their AI spending is turning into returns, or whether cash flow stays negative for longer than investors will tolerate. The Bank of Japan’s statement later on Friday will be watched for its reading of bond market volatility and its view of where monetary policy stands. And with Asian markets nursing steep monthly losses, the next round of earnings and guidance from the big AI spenders will be the next real test of whether this sell-off is a pause in the AI trade or the start of a deeper reset.