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 Gases0.77%+0.76 ppPaper & Plastic Packaging Products & Materials0.48%+0.48 ppCopper0.19%+0.19 ppFertilizers & Agricultural Chemicals0.18%+0.18 ppGold0.17%+0.17 ppConstruction Materials0.16%+0.16 ppCommodity Chemicals0.16%+0.16 ppSteel0.11%+0.11 ppMetal, Glass & Plastic Containers0.09%+0.09 pp
3 · Sub-industry
Inside Specialty Chemicals
Specialty Chemicals · weight
0.94%
Industry change · 12M
+0.94 pp
Specialty Chemicals · contribution
+0.937 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jul 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 | $76.6bn | 0.263% | -0.001 pp | +0.263 pp | +35.9% | Yes |
| Ecolab → ECL | United States | $63.1bn | 0.217% | -0.016 pp | +0.216 pp | +19.1% | Yes |
| PPG Industries → PPG | United States | $38.8bn | 0.133% | -0.014 pp | +0.133 pp | +54.3% | Yes |
| International Flavors & Fragrances → IFF | United States | $37.5bn | 0.129% | +0.000 pp | +0.129 pp | +22.5% | Yes |
| LyondellBasell → LYB | United States | $33.2bn | 0.114% | -0.012 pp | +0.114 pp | +66.5% | Yes |
| Albemarle Corporation → ALB | United States | $24.0bn | 0.082% | +0.011 pp | +0.082 pp | +152.7% | 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.