Operational Excellence (OPEX) Insight – Tuesday - November 10, 2026: Nvidia Slides 4%, Dragging Nasdaq Down

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On November 10, 2026, amid a hotter than expected inflation report that had the market worried the Fed might raise rates more aggressively, the AI stocks mostly steadied, but Nvidia was the heaviest exception, falling about 4 percent and dragging the Nasdaq index down. A short line of news, which at a glance is only an investor’s concern. But hidden in it is an operations question well worth asking: why can a single name wobbling pull a basket of thousands of companies along with it. The answer to that question opens a management tool nearly any business can use, whether a corporation or a small noodle shop.

The answer lies in a feature of how an index is calculated. The Nasdaq, like most large indexes, is not a simple average of every stock, but an average weighted by market capitalization, meaning the larger the company the heavier its voice in the index. Nvidia, with a market cap among the largest in the world, holds a share of the weight so large that when it alone drops 4 percent, the whole index sways with it, even when most of the other companies stand still or tick up. In other words, the index everyone looks at as a representative of the whole market is in fact heavily driven by a small group of giant companies. The many small companies combined still are not as large as a few large companies.

That very phenomenon of the few dominating the many is the heart of the operations tool used for this whole piece: the Pareto principle, or in more familiar terms the 80/20 rule. This is one of the oldest, cheapest, and easiest to grasp tools of management, yet also one of the most superficially used. Understanding it fully changes entirely how an owner looks at their own business, and today’s Nvidia news is a vivid occasion to look again.