Related stories
Has the tech bubble burst? Why the Nasdaq’s rough ride looks eerily like 2000.
This cybersecurity stock will be the next to join the S&P 500
Soaring cost of Halloween treats spooks shoppers
Why gold plunged to its lowest price in a year despite renewed Iran jitters
US greenlights $2.1bn sale of Patriot interceptors to Ukraine
The selloff in tech stocks is shifting into overdrive