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 Commodity Chemicals
Commodity Chemicals · weight
0.12%
Industry change · 12M
-0.02 pp
Commodity Chemicals · contribution
-0.022 pp
Company participation
0%
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 |
|---|---|---|---|---|---|---|---|
| Dow Inc. → DOW | United States | $32.9bn | 0.117% | -0.015 pp | -0.022 pp | -12.4% | 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.