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 Chemicals0.75%-0.19 ppFertilizers & Agricultural Chemicals0.31%+0.11 ppIndustrial Gases0.72%-0.05 ppMetal, Glass & Plastic Containers0.06%-0.04 ppPaper & Plastic Packaging Products & Materials0.44%-0.04 ppGold0.12%-0.02 ppCopper0.16%-0.02 ppCommodity Chemicals0.12%-0.02 ppConstruction Materials0.15%-0.01 ppSteel0.12%+0.01 pp
3 · Sub-industry
Inside Specialty Chemicals
Specialty Chemicals · weight
0.75%
Industry change · 12M
-0.19 pp
Specialty Chemicals · contribution
-0.187 pp
Company participation
17%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Oct 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 |
|---|---|---|---|---|---|---|---|
| Sherwin-Williams → SHW | United States | $58.3bn | 0.207% | -0.009 pp | -0.070 pp | -28.3% | No |
| Ecolab → ECL | United States | $44.8bn | 0.159% | -0.003 pp | -0.054 pp | -28.5% | No |
| International Flavors & Fragrances → IFF | United States | $24.9bn | 0.088% | -0.020 pp | -0.034 pp | -32.0% | No |
| PPG Industries → PPG | United States | $26.8bn | 0.095% | -0.009 pp | -0.032 pp | -27.7% | No |
| Albemarle Corporation → ALB | United States | $32.8bn | 0.116% | +0.018 pp | +0.018 pp | +12.5% | Yes |
| LyondellBasell → LYB | United States | $24.9bn | 0.088% | -0.012 pp | -0.015 pp | -9.5% | No |
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.