Nvidia and Micron loom large in Zacks Tech earnings math, highlighting how concentrated the S&P 500’s tech profit picture has become

Second-quarter earnings are being framed less as a broad-based technology recovery and more as a story of concentration, according to a Yahoo Finance analysis published July 17.

The article argues that the performance of Nvidia and Micron does not just lift their own results, but also changes the apparent trajectory of the broader technology complex. In its framing, excluding those two companies, Q2 earnings for the rest of the Zacks Tech sector would have risen 25.3%.

That rate is contrasted with a higher figure of 48.8%, described as the result “otherwise” when the two names are included. In other words, the math implies that the sector’s headline earnings growth was materially shaped by Nvidia and Micron rather than evenly distributed across the remaining constituents.

While the post centers on the sector-level comparison, it does not lay out, in the material provided here, the specific Q2 revenue or profit outcomes for Nvidia, Micron, or the rest of the sector companies. The emphasis is on how the sector’s aggregated earnings growth changes once two large chip-linked names are removed from the calculation.

For investors and market watchers, this kind of attribution is a practical question, because it affects how earnings momentum is interpreted at the index and sector level. When a small subset of companies is doing most of the work, the path of “tech earnings” can look stronger than what most companies are experiencing.

It can also raise the stakes around dispersion, where results are split across different subsectors and business models. In concentrated earnings environments, even modest weakness at a dominant contributor can drag down the perceived forward outlook for the broader tech group, while strength at that same contributor can mask slower gains elsewhere.

The post’s framing is specifically tied to the Zacks Technology sector rather than the S&P 500 as a whole, but the underlying implication carries over to how people discuss “S&P 500 tech earnings.” In a market where index-level narratives often depend on a relatively narrow set of winners, concentration can become a lens through which analysts interpret both valuation and expectations.

What remains unclear from the provided information is the distribution of results among the “rest of the Zacks Tech sector” group, including whether the 25.3% figure reflects broad improvement or a narrower subset of mid-sized contributors. The Yahoo Finance analysis, as provided here, does not specify which companies drove the remaining gains or how much of the sector’s growth came from areas outside Nvidia and Micron.

Next, market participants will likely look for corroboration in company-by-company disclosures and subsequent guidance, because sector-level earnings math can shift quickly as additional reports land and as management commentary changes expectations. The key question is whether the earnings strength suggested by the 48.8% figure is sustained by continued contributions from the two dominant names, or whether the rest of the sector can close any gap implied by the 25.3% comparison.