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
Paper & Plastic Packaging Products & Materials0.31%-32.06 ppIndustrial Gases0.59%+0.10 ppFertilizers & Agricultural Chemicals0.16%+0.05 ppGold0.14%+0.04 ppCommodity Chemicals0.03%-0.03 ppSpecialty Chemicals0.48%+0.02 ppConstruction Materials0.15%+0.02 ppCopper0.12%+0.00 ppSteel0.11%+0.00 ppMetal, Glass & Plastic Containers0.03%-0.00 pp
3 · Sub-industry
Inside Specialty Chemicals
Specialty Chemicals · weight
0.48%
Industry change · 12M
+0.02 pp
Specialty Chemicals · contribution
+0.022 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jul 2025 · 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 | $74.2bn | 0.156% | -0.014 pp | +0.038 pp | +14.6% | No |
| LyondellBasell → LYB | United States | $18.6bn | 0.039% | -0.006 pp | -0.019 pp | -37.4% | No |
| Sherwin-Williams → SHW | United States | $82.5bn | 0.174% | -0.038 pp | +0.015 pp | -4.9% | No |
| International Flavors & Fragrances → IFF | United States | $18.2bn | 0.038% | -0.010 pp | -0.007 pp | -27.2% | No |
| Albemarle Corporation → ALB | United States | $8.0bn | 0.017% | +0.000 pp | -0.003 pp | -26.1% | No |
| PPG Industries → PPG | United States | $23.8bn | 0.050% | -0.009 pp | -0.003 pp | -15.0% | 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.