These two stocks have benefited significantly from a surge in demand due to artificial intelligence. When you think of top artificial intelligence (AI) stocks to own, Nvidia (NVDA -0.16%) inevitably is one of the first ones that probably comes to mind. In recent years, it generated mammoth, life-changing returns for investors. But it's also the most valuable company in the world today, with a valuation of nearly $4.3 trillion. Investors may be looking for similar stocks, but perhaps smaller ones, that may p ...