Motley Fool: Buy the Dip.

Upstart uses artificial intelligence to analyze more than 1,000 data points per borrower to screen them and assess the risks of lending. So while lenders like banks can use Upstart's services to originate low-risk loans, potential borrowers can get quick loans at low rates. It's a win-win for both sides. Much of the process is automated, and Upstart also doesn't have to bear credit risks as it doesn't lend money but only helps originate loans in return for a fee.

Upstart's numbers for 2021 reveal stunning growth:
Revenue up 264% to $849 million.
Income from operations up 1,097% to $141 million.
Net income up 2,164% to $135 million.

Such high growth rates may not be sustainable, but Upstart won't stop growing given the markets it is targeting. After unsecured personal loans, Upstart has already entered auto loans and tapped top automakers like Volkswagen as initial clients. Upstart is aiming for small-dollar and small-business loans next, and expects to enter mortgage lending in 2023.

The mortgage market alone is worth at least $4 trillion based on originations, while the auto loan market is worth more than $700 billion. That's massive, and one of the biggest reasons why Upstart stock looks so appealing right now.