Bill Ackman of Pershing Square Capital Management and Andreas Halvorsen of Viking Global Investors are two billionaires worth following for investment ideas. They are entrusted with billions in assets to manage for clients, and that reflects a career of making smart investment choices.

Palantir aggregates large amounts of data from disparate sources to help its clients make faster decisions, and it's streamlining that process with generative AI tools. Microsoft owns the world's largest PC operating system (Windows),

With less than two months remaining in 2024, now is a great time for investors to think about which stocks they want to carry into 2025. At the moment, artificial intelligence (AI) looks like it will continue to be a dominant theme across the market in 2025, so you might want to start by looking at companies that compete in that arena.