The US stock market has seen $1 trillion wiped off in four days as a sell-off in tech companies deepened on Wednesday.

Warning from OpenAI’s Sam Altman and MIT paper puncture Wall Street’s enthusiasm

The US stock market has seen $1 trillion wiped off in four days as a sell-off in tech companies deepened on Wednesday.

It comes after the U.S. stock market exchange lost $1trillion in just four days as a tech stock sell-off escalated on Wednesday.

Shares in US tech stocks are falling but it would probably be unwise for fund managers to pull out