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 & Defense2.57%+0.86 ppBuilding Products0.62%+0.22 ppHeavy Electrical Equipment0.31%+0.20 ppDiversified Support Services0.36%+0.19 ppIndustrial Machinery & Supplies & Components1.00%+0.17 ppEnvironmental & Facilities Services0.52%+0.16 ppHuman Resource & Employment Services0.43%+0.15 ppIndustrial Conglomerates0.59%+0.15 ppPassenger Ground Transportation0.40%+0.14 ppAgricultural & Farm Machinery0.31%+0.11 ppConstruction Machinery & Heavy Transportation Equipment0.66%+0.11 ppElectrical Components & Equipment0.61%+0.10 ppRail Transportation0.56%+0.07 ppResearch & Consulting Services0.17%+0.05 ppPassenger Airlines0.17%+0.05 ppConstruction & Engineering0.15%+0.04 ppTrading Companies & Distributors0.16%+0.04 ppAir Freight & Logistics0.31%-0.02 ppData Processing & Outsourced Services0.06%+0.02 ppCargo Ground Transportation0.11%+0.00 pp
3 · Sub-industry
Inside Research & Consulting Services
Research & Consulting Services · weight
0.17%
Industry change · 12M
+0.05 pp
Research & Consulting Services · contribution
+0.050 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
May 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 |
|---|---|---|---|---|---|---|---|
| Verisk Analytics → VRSK | United States | $43.9bn | 0.100% | +0.006 pp | +0.031 pp | +25.0% | Yes |
| Equifax → EFX | United States | $32.8bn | 0.074% | +0.006 pp | +0.020 pp | +14.9% | 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.