Align Technology is a company best known for its Invisalign dental aligners. The company has fared well despite the Covid-19 pandemic, with its Q3 2020 sales soaring by about 24.9% versus last year. Investors have also been cheering the company's quick international expansion, with Invisalign shipments outside the U.S growing 34% last quarter. [ 1 ] The stock trades at about $504.