QQQJ's index is meaningful in the AI investing conversation. That's because, like its family member NDX, the gauge is home to multiple AI equities. Those stocks are less bally-hooed than NDX's artificial intelligence fare. But QQQJ offers investors legitimate AI exposure. And that's particularly so on the overlooked/underappreciated front. In a recent interview with Business Insider, Que Nguyen, chief investment officer at Research Affiliates, mentioned Seagate Technologies (STX) and Western Digital (WDC) a ...