Observatory · observe first
Follow the allocation change
Matched S&P 500 members → sector → industry → sub-industry → company. Each step uses the same percentage points.
Historical time machine
Historical observation
20182026
1 · Sector
Weight and 12M allocation change
2 · Industry
Inside Industrials
Aerospace & Defense2.55%+0.92 ppHeavy Electrical Equipment0.33%+0.23 ppBuilding Products0.61%+0.22 ppIndustrial Machinery & Supplies & Components0.97%+0.18 ppDiversified Support Services0.34%+0.17 ppElectrical Components & Equipment0.63%+0.15 ppConstruction Machinery & Heavy Transportation Equipment0.68%+0.15 ppPassenger Ground Transportation0.42%+0.14 ppIndustrial Conglomerates0.57%+0.13 ppHuman Resource & Employment Services0.38%+0.12 ppEnvironmental & Facilities Services0.48%+0.11 ppAgricultural & Farm Machinery0.30%+0.10 ppRail Transportation0.55%+0.08 ppConstruction & Engineering0.15%+0.06 ppPassenger Airlines0.17%+0.05 ppTrading Companies & Distributors0.16%+0.04 ppAir Freight & Logistics0.31%-0.04 ppResearch & Consulting Services0.16%+0.04 ppData Processing & Outsourced Services0.06%+0.02 ppCargo Ground Transportation0.10%+0.00 pp
3 · Sub-industry
Inside Heavy Electrical Equipment
Heavy Electrical Equipment · weight
0.33%
Industry change · 12M
+0.23 pp
Heavy Electrical Equipment · contribution
+0.227 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jun 2025 · sorted by absolute contribution to 12-month change
| Company | Country | Market cap | Universe weight | 3M contribution | 12M contribution | 12M price return | Above 6M weight average |
|---|---|---|---|---|---|---|---|
| GE Vernova → GEV | United States | $144.4bn | 0.311% | +0.111 pp | +0.223 pp | +209.0% | Yes |
| Generac → GNRC | United States | $8.5bn | 0.018% | +0.000 pp | +0.003 pp | +8.3% | Yes |
Company contributions use weights among matched S&P 500 members and add through each level without rescaling. Companies without matched shares and prices are omitted. These observations do not establish official index weights or actual fund flows.