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 Chemicals0.86%-0.11 ppFertilizers & Agricultural Chemicals0.31%+0.09 ppSteel0.15%+0.06 ppPaper & Plastic Packaging Products & Materials0.49%-0.03 ppGold0.21%+0.03 ppMetal, Glass & Plastic Containers0.10%-0.02 ppCopper0.21%+0.01 ppIndustrial Gases0.76%-0.01 ppCommodity Chemicals0.18%+0.01 ppConstruction Materials0.16%-0.00 pp
3 · Sub-industry
Inside Specialty Chemicals
Specialty Chemicals · weight
0.86%
Industry change · 12M
-0.11 pp
Specialty Chemicals · contribution
-0.106 pp
Company participation
17%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Apr 2022 · 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 |
|---|---|---|---|---|---|---|---|
| Ecolab → ECL | United States | $48.6bn | 0.176% | -0.007 pp | -0.057 pp | -23.7% | No |
| PPG Industries → PPG | United States | $30.2bn | 0.109% | -0.015 pp | -0.038 pp | -24.2% | No |
| International Flavors & Fragrances → IFF | United States | $30.9bn | 0.112% | -0.001 pp | -0.016 pp | -12.7% | No |
| Albemarle Corporation → ALB | United States | $22.6bn | 0.082% | -0.005 pp | +0.011 pp | +15.5% | No |
| Sherwin-Williams → SHW | United States | $71.5bn | 0.259% | +0.006 pp | -0.005 pp | +1.2% | No |
| LyondellBasell → LYB | United States | $34.7bn | 0.126% | +0.017 pp | -0.000 pp | +6.9% | 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.