These three stocks have already made a ton of millionaires, and they're probably going to make even more! So, Is it too late to add them to the portfolio?1.Constellation Software $Constellation Software, Inc.(CNSWF)$ is a powerhouse in acquiring leading software and services in the market. Their revenue has skyrocketed to $8 billion in 2023. With a strategy that combines organic growth and acquisitions, they've transformed into an international professional solutions provider. From 2007 to 2023, Constellation's stock price has seen an equally impressive transformation. Shares have soared from around $23 to the current $3,720, an increase of more than 16,000%. Obviously, many millionaires have been born.2.Shopify