: Deposit the amount you wish to invest. Some platforms require as little as $1 to start with fractional shares.

If you prefer not to pick individual companies, you can buy a basket of blue-chip stocks through a single fund. This provides instant diversification across different sectors.

Robinhood and Public are popular mobile-first choices that offer "fractional shares," allowing you to buy a small slice of high-priced blue-chip companies for as little as $1. :