NVIDIA Corp. (NVDA), Aug. 27 -- By mid-session Wednesday the S&P 500 had shed 17 points, trading at 5,618 - a decline precise enough to feel deliberate. It was. Traders across equity desks in Manhattan and Chicago described the same posture: reduce exposure now, reload after NVIDIA reports.

a figure that would represent 97% growth from a year earlier - and earnings of $2.09 per share. What the report will actually produce is, by any measure, the most consequential single earnings event of the quarter, and possibly the year. The NVIDIA stock story is inseparable from the S&P 500 story in August 2026.

The benchmark's 15.2% year-to-date gain - its best first eight months since 2021 - rests on a narrow foundation. Strip out the five largest...