Upstart ( UPST 0.45%) and SoFi Technologies ( SOFI 1.98%) are both growing fintech companies. Upstart's online lending ...

Founded in 1993, The Motley Fool is a financial services company dedicated to making the world smarter, happier, and richer.

Founded in 1993, The Motley Fool is a financial services company dedicated to making the world smarter, happier, and richer.

Let's say you're 40 with $60,000 saved for retirement so far, and you've been contributing $200 a month to an IRA or 401 (k).

Let's look at three growth stocks that have the potential to go parabolic.