The market doesn't know what to make of Nvidia (NVDA 2.48%) stock right now. Its shares are down 30% so far this year, and analysts are trimming their growth forecasts for the chipmaker as its valuation slides. The graphics processing unit (GPU) leader now trades at just 18.4 times sales -- its cheapest multiple since 2023. Nvidia stock is arguably a great buy following the market's early 2025 correction. But if you're looking to load up on bargain artificial intelligence (AI) stocks, don't overlook the two ...