Chip makers and tech investors such as Samsung and SoftBank plunge as potential interest rate hikes spook markets

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• Larry Elliott: the global economy is muddling through. But a storm is coming

An accelerating sell-off of AI-linked shares has hit global markets, as fears over rising inflation and future interest rate hikes spooked traders already wary of the heavily indebted sector.

South Korea’s benchmark Kospi 200 index, which is heavily skewed towards the companies that make memory chips, fell more than 8% overnight to a six-month closing low, triggering circuit breakers that brought trading to a halt at various points.

High valuations and debt put sector in danger, while fund also warns on government borrowing and cyber-attacks

• IMF warns global economy ‘could soon test the limits of resilience’

The threat of an AI share price crash rippling out across global markets is putting world financial stability at risk, the International Monetary fund has warned.

In its twice-yearly Global Financial Stability Report, the IMF highlighted the sky-high valuations for AI companies along with their increasing debt pile as one reason that risks in the system are “elevated”.