Yahoo Finance

Microsoft (MSFT) and Amazon (AMZN) are in focus after UK regulators raised concerns about competition among cloud providers, saying that Azure and Amazon Web Services, the companies' respective cloud businesses, each have around 40% of the UK cloud market.

Google (GOOG, GOOGL) is facing the European Commission in the highest court over a $4.5 billion fine issued due to allegations that the company used its market dominance to push Android users to Google.

Seana Smith and Alexandra Canal take a closer look at the regulatory challenges the Big Tech players face in Europe on Catalysts.

To watch more expert insights and analysis on the latest market action, check out more Catalysts here.

This post was written by Naomi Buchanan.