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
Industrial Gases0.86%+0.65 ppCommodity Chemicals0.20%+0.20 ppCopper0.09%-0.06 ppPaper & Plastic Packaging Products & Materials0.19%-0.05 ppMetal, Glass & Plastic Containers0.13%+0.05 ppGold0.17%+0.05 ppSpecialty Chemicals0.83%-0.03 ppSteel0.09%-0.03 ppFertilizers & Agricultural Chemicals0.11%-0.02 ppConstruction Materials0.18%-0.01 pp
3 · Sub-industry
Inside Specialty Chemicals
Specialty Chemicals · weight
0.83%
Industry change · 12M
-0.03 pp
Specialty Chemicals · contribution
-0.033 pp
Company participation
83%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jun 2019 · 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 |
|---|---|---|---|---|---|---|---|
| LyondellBasell → LYB | United States | $31.9bn | 0.172% | -0.007 pp | -0.089 pp | -18.0% | Yes |
| Ecolab → ECL | United States | $56.9bn | 0.307% | +0.015 pp | +0.061 pp | +42.2% | Yes |
| International Flavors & Fragrances → IFF | United States | $15.5bn | 0.083% | +0.005 pp | +0.024 pp | +19.6% | Yes |
| Albemarle Corporation → ALB | United States | $7.5bn | 0.040% | -0.010 pp | -0.023 pp | -24.1% | No |
| PPG Industries → PPG | United States | $27.6bn | 0.149% | -0.004 pp | -0.005 pp | +14.5% | Yes |
| Sherwin-Williams → SHW | United States | $14.1bn | 0.076% | -0.000 pp | -0.001 pp | +13.5% | 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.