You got this- you buy a stock at a low price, and if it goes up and you sell it higher, you now have more $ (and if lower, you now have less). I bought shares under $12, and now each one is worth $68 (right now). I made all of that in one day because so many people believe in the stock--- as it represents Trump's new social media company. When you open an account, you have to deposit however much you want to invest. Buying and selling shares is now free at most online brokerages. It's all just math.... pretty straight forward really: there are only so many shares and when more people want it than there are shares available, the sellers raise the price higher to get more for each one they are selling. Supply and demand. :)