While this approach works best for most people, there are two downsides: First, you can never outperform the index you're ...

CNBC Select has chosen the best no-commission apps in a variety of categories, from mutual funds to fractional shares. For more info on how we made this list, check out our methodology.

Khadija Khartit is a strategy, investment, and funding expert, and an educator of fintech and strategic finance in top universities. She has been an investor, entrepreneur, and advisor for more than ...