Few companies have benefited more from the artificial intelligence (AI) hype cycle than Nvidia (NVDA -1.02%), as it makes billions by designing the hardware needed to run and train these advanced algorithms. However, in recent times, the company has run into challenges as Chinese competition and international trade disputes weigh on investor optimism. Nvidia's shares are currently down by roughly 10% from an all-time high of $149 reached in January. But is this dip a buying opportunity or a signal for inves ...