On the first trading day of 2022, Apple hit a new milestone for the tech industry: the iPhone maker became the first publicly traded company to hit a $3 trillion market cap, with Microsoft and Google not far behind. As eye-popping as that valuation was, there were headlines speculating about how long it would be before Apple and its rivals topped $5 trillion.On the first trading day of 2022, Apple hit a new milestone for the tech industry: the iPhone maker became the first publicly traded company to hit a $3 trillion market cap, with Microsoft and Google not far behind. As eye-popping as that valuation was, there were headlines speculating about how long it would be before Apple and its rivals topped $5 trillion.