Why Microsoft avoided antitrust scrutiny that plagued other tech giants in 2021

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The Big Tech reckoning gained momentum in 2021, as U.S. regulators accused behemoths like Google and Facebook of abusing their market power to gain an illegal edge over competitors.

But one major name in tech avoided not only the ire of the public but also the reach of antitrust regulators in 2021: Microsoft (MSFT), Yahoo Finance’s Company of the Year and the second-largest company in the U.S. by market capitalization after Apple (AAPL).

Microsoft is indisputably a giant even among its massive peers. It has the world’s dominant desktop operating system in Windows and is second in cloud market share behind Amazon (AMZN); it also owns the planet’s biggest professional network, LinkedIn, and Slack rival Microsoft Teams.

So, why haven’t antitrust regulators pursued Microsoft recently? To be an illegal monopolist, a company has to have a dominant market share and engage in anti-competitive practices. And several antitrust experts say they just haven’t seen signs that Microsoft has violated antitrust law. Perhaps Microsoft learned its lesson from an epic antitrust lawsuit the Justice Department filed nearly 25 years ago. Since then, Microsoft has gotten bigger — but it appears to be playing by the rules.

[See also: What we get right, and wrong, with our Company of the Year]

“Size does not make any difference. We don’t go after firms because of their large size,” Herbert Hovenkamp, one of the world’s leading antitrust scholars, told Yahoo Finance. “For example, Walmart is bigger than Amazon, but nobody is talking about major public antitrust litigation against Walmart.”

Later, Hovenkamp added, “You have got to identify some product where there is both dominance and an exclusionary practice and it’s kind of hard to find one [with Microsoft]. That’s, I think, the bottom line.”

The antitrust war against the rest of Big Tech

The same cannot be said of other tech giants, if antitrust claims against them are true.

Google (GOOG, GOOGL) has the biggest target on its back: The search and advertising giant faces three pending antitrust lawsuits from state attorneys general and one from a coalition of AGs and the Justice Department. The latest government lawsuit, filed in July, targets Google’s app store, Google Play. The others focus on Google’s massive search and search advertising business: When the Justice Department filed its suit in October of last year, then-Attorney General Bill Barr called the company "the gatekeeper of the internet.”

Meanwhile, Facebook parent Meta Platforms (FB) is still defending itself against claims from the Federal Trade Commission that it scoops up rivals like Instagram and WhatsApp to destroy its competition.