Tech bubble jitters send Wall Street tumbling into the red

Wall Street tumbled on Thursday, with hundreds of billions of dollars wiped off the value of America’s booming tech sector amid worries of a Nineties-style bubble. The tech-heavy Nasdaq dropped nearly 5pc as heavyweights such as Apple, Amazon, Microsoft and Facebook lost ground. The index has notched up a string of record highs in recent weeks. Ann Berry, a partner at US private equity firm Cornell Capital, told Bloomberg TV the sell-off was the product of investors cycling out of tech sto