For a few hundred dollars a month, you can become a millionaire.

Mohammed Al Shalloudi, a 21-year-old graduate data analyst in the United Arab Emirates, invested in Donald Trump's social media company, but he has little in common with the former U.S. President of the Republic's political supporters. Al Shalloudi bought shares of Trump Media and Technology Group (TMTG), but not because he believed in the business of the company's app, Truth Social, or because he was a Trump fan. Al Shalloudi said he bought at $37 per share and cashed out at $65 per share over the weekend, returning 76% on his $4,000 investment in just a few days.

Nvidia has increased its market capitalization by $1.9 trillion in 15 months. But if history repeats itself and the artificial intelligence (AI) bubble bursts, five industry leaders could surpass it in value.

Where the market is more pessimistic about a company than it actually is, investors tend to see a boost in returns when that sentiment changes.