SoFi and Robinhood still have considerable growth ahead simply from monetizing their existing customers. The typical SoFi customer uses about 1.5 products on average, leaving enormous room for cross-selling. Robinhood has continued to introduce various products, including retirement accounts, a credit card, and a prediction market.

Fewer IPOs and a booming private market mean ordinary investors have less access to fast-growing companies. Here's how that shift affects your portfolio.

Nvidia just keeps winning across Washington and Wall Street. Nvidia stock climbed 4 percent Tuesday to hit a record high after the US government gave it the green light to resume