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 Chemicals0.97%+0.97 ppIndustrial Gases0.80%+0.80 ppPaper & Plastic Packaging Products & Materials0.53%+0.53 ppCopper0.22%+0.22 ppGold0.21%+0.21 ppFertilizers & Agricultural Chemicals0.21%+0.21 ppCommodity Chemicals0.18%+0.18 ppConstruction Materials0.17%+0.17 ppSteel0.11%+0.11 ppMetal, Glass & Plastic Containers0.10%+0.10 pp
3 · Sub-industry
Inside Specialty Chemicals
Specialty Chemicals · weight
0.97%
Industry change · 12M
+0.97 pp
Specialty Chemicals · contribution
+0.973 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
May 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 | $75.4bn | 0.270% | +0.230 pp | +0.270 pp | +44.4% | Yes |
| Ecolab → ECL | United States | $61.5bn | 0.220% | +0.101 pp | +0.220 pp | +2.1% | Yes |
| PPG Industries → PPG | United States | $42.6bn | 0.153% | +0.089 pp | +0.153 pp | +79.6% | Yes |
| LyondellBasell → LYB | United States | $37.7bn | 0.135% | +0.066 pp | +0.135 pp | +86.0% | Yes |
| International Flavors & Fragrances → IFF | United States | $35.3bn | 0.126% | +0.059 pp | +0.126 pp | +9.1% | Yes |
| Albemarle Corporation → ALB | United States | $19.5bn | 0.070% | +0.033 pp | +0.070 pp | +121.4% | 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.