Artificial intelligence (AI) investing covers a broad range of companies, including hardware, software, end users, and many that cover a large part of this spectrum. On the hardware side, Nvidia ( NVDA -1.41%) has reigned supreme as the top stock. However, there are other ways to invest in this space.

Two prominent companies in this area are quantum computing company IonQ (NYSE: IONQ) and semiconductor-giant Nvidia (NASDAQ: NVDA). Through Dec. 11, IonQ's share price was up around 140%, and Nvidia's had risen about 180% in 2024.

Advanced Micro Devices (NASDAQ: AMD) and Marvell Technology (NASDAQ: MRVL) have enjoyed contrasting fortunes on the stock market in 2024, with one of these names delivering stellar gains while the other one is in the red.

Artificial intelligence stocks have helped propel the markets to all-time highs, but can the momentum really keep going?

Market researcher IDC forecasts that global AI-related spending could hit $337 billion next year and jump to a whopping $749 billion by 2028. As a result, technology companies selling AI-related hardware and software should ideally witness healthy growth in their businesses next year.