These 4 U.S. Stocks Have Reached a $1 Trillion Market Value -- Here's Why They're Dominating

Over the past two years, Apple (NASDAQ: AAPL), Amazon (NASDAQ: AMZN), Microsoft (NASDAQ: MSFT), and Alphabet (NASDAQ: GOOG) (NASDAQ: GOOGL) have all achieved something that their publicly traded peers haven't -- they've reached a market cap of $1 trillion or higher.

The merit of such a milestone is debatable. After Microsoft crossed $1 trillion, its CEO Satya Nadella said, "I would be disgusted if somebody ever celebrated our market cap" and added that the milestone was "not meaningful."

To that point, publicly traded companies are valuable for how they grow their business, generate value for their investors, earn profits, and disrupt industries -- not because they earn high valuations. But obtaining a $1 trillion valuation does indicate that these companies are doing something right, so let's take a look at how Apple, Amazon, Microsoft, and Alphabet are dominating their respective markets.

Source Fool.com