Shares of Nvidia ( NVDA -8.69%) are falling on Monday. The company's stock lost 4.5% as of noon ET, but was down as much as 5.3% earlier in the day. The drop comes as the S&P 500 ( ^GSPC -1.76%) slipped 0.3% and the Nasdaq Composite ( ^IXIC -2.64%) lost 0.4%.

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.

Nvidia stock is bouncing back from its latest slide, but the move higher today could reshape how the market reacts to tonight’s earnings report. With Nvidia up 4.7% today, the stock is leading a broader market rally.