The artificial intelligence trade continues to dominate Wall Street, and AI hyperscalers are responsible for much of the gains the S&P 500 has produced so far in 2025.Companies like Meta Platforms META, NVIDIA NVDA, Amazon AMZN and Alphabet GOOG are soaring once again in Q3, but these are not the only AI-related companies worth looking at as the year draws to a close.If you want outsized gains from your AI investments, you'll have to swim into waters where fewer fish are biting. Today, we'll examine five un ...