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 Materials
Specialty Chemicals0.94%+0.94 ppIndustrial Gases0.74%+0.74 ppPaper & Plastic Packaging Products & Materials0.52%+0.51 ppFertilizers & Agricultural Chemicals0.18%+0.18 ppCopper0.18%+0.18 ppConstruction Materials0.16%+0.16 ppCommodity Chemicals0.16%+0.16 ppGold0.15%+0.15 ppSteel0.12%+0.12 ppMetal, Glass & Plastic Containers0.10%+0.10 pp
3 · Sub-industry
Inside Specialty Chemicals
Specialty Chemicals · weight
0.94%
Industry change · 12M
+0.94 pp
Specialty Chemicals · contribution
+0.940 pp
Company participation
67%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Aug 2021 · 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 |
|---|---|---|---|---|---|---|---|
| Sherwin-Williams → SHW | United States | $80.0bn | 0.267% | -0.003 pp | +0.267 pp | +36.9% | Yes |
| Ecolab → ECL | United States | $64.5bn | 0.216% | -0.005 pp | +0.215 pp | +15.4% | Yes |
| PPG Industries → PPG | United States | $37.9bn | 0.127% | -0.026 pp | +0.126 pp | +34.4% | No |
| International Flavors & Fragrances → IFF | United States | $37.7bn | 0.126% | -0.000 pp | +0.126 pp | +25.4% | Yes |
| LyondellBasell → LYB | United States | $33.6bn | 0.112% | -0.023 pp | +0.112 pp | +59.9% | No |
| Albemarle Corporation → ALB | United States | $27.7bn | 0.093% | +0.023 pp | +0.093 pp | +163.1% | 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.