Incremental Index Profit Expansion Attribution
Micron Leading Growth
#1 Profit Growth Driver
Micron (MU)
+$12.50B YoY Delta (8.4% share)
Total S&P Net Profit Added
+$148.8B
+8.18% Aggregate YoY Expansion
Micron Growth Share
vs. Nvidia 7.7% share
S&P 500 EPS Est. Impact
$278.40
+$21.05 per index share
Incremental Profit Contribution Waterfall ($ Billions Added)
■ MU
■ NVDA
■ Big-5
■ S&P 493
Visualizing the mathematical reality: A company swinging from near-breakeven to $13B+ contributes more raw dollar growth than a $70B titan growing 15%.
| Constituent / Group | Base Net Inc | Proj Net Inc | Dollar Delta (Δ Profit) | Growth % | Share of S&P Growth | Contribution Bar |
|---|
The Base-Effect Dynamic: Nvidia generates far more absolute profit (~$80B vs Micron's ~$13B), but index profit growth is measured by the incremental dollar change (Δ Net Income). Because Micron is rebounding from a severe cyclical memory downturn (HBM3e/DRAM demand surging), its dollar increase of +$12.5B surpasses Nvidia's incremental +$11.5B increase, making Micron the single largest mathematical contributor to YoY index earnings expansion in this scenario.