Stock market's 2016 rout has tech firms reeling – and may prove fatal for some

Across the sector shares - including Apple, Alphabet, Twitter and Facebook - have tumbled and smaller companies such as GoPro have not recovered

As 2016 ushers in one of the worst stock market routs in years, cracks in the tech sector have suddenly widened from mild to serious - and in some cases, potentially fatal. Shares of tech giants from Apple to Alphabet to Netflix took immediate hits when the market opened, and smaller companies like GoPro - down more than 24% in one day - have not recovered.