Key Points Nine American companies have accrued valuations of $1 trillion or more, but only four have graduated into the$3 trillion club. Alphabet became the latest member on Sept. 15, thanks to a near-20% gain in its stock over the past couple of weeks following a favorable court ruling. It's still the cheapest stock among its peers, which could open the door to further upside. 10 stocks we like better than Alphabet › The U.S. economy has a habit of producing the world's most valuable companies ...