Why Nvidia’s longer-term future return is not worth the risk — even if it continues to be a phenomenally profitable company. Nvidia Corp.’s market performance over the past six months is a good illustration of the difference between a good company and a good stock.

On Monday, reports surfaced that Nvidia chips were making their way to customers in China, with the high-end tech circumventing strict US export controls.

With shares down 10% year to date, Nvidia's (NASDAQ: NVDA) rocket ship rally has hit a roadblock, even as its chip business continues to break records. Fourth-quarter earnings were yet another slam-dunk success -- but instead of celebrating,