The Big Number: $1.7 Trillion

The biggest U.S. antitrust case in 25 years, set to begin next week, strikes at the heart of the empire that Alphabet, Google’s parent company, built over decades.

Alphabet hit a $1 trillion market cap in January 2020, a milestone that only Apple, Amazon and Microsoft have reached. At the time, Alphabet was facing several different legal and regulatory challenges — but this latest court battle is its most significant yet.