The Covid crisis has turbo-charged profits and share prices. But are the big six now too powerful for regulators to ignore?

The coronavirus pandemic has wrought economic disruption on a global scale, but one sector has marched on throughout the chaos: big tech.

Further evidence of the industry’s relentless progress has come in recent weeks with the news that Apple and Amazon both raked in sales of $100bn (£72bn) over the past three months – 25% more than Tesco brings in over a full year.