Heading into Nvidia's critical report next week, Wall Street remains decidedly bullish. Analysts' consensus estimates are calling for revenue of $33 billion -- or growth of about 82%. Nvidia has a strong track record of beating its own expectations and that of Wall Street, so the results could be more robust.

The stock market broadly has been rising faster than corporate profits, which raises the volume on criticism from skeptics that it’s gotten too expensive. The S&P 500 is still up nearly 25% for the year so far, on top of last year’s leap of 24.2%.