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 Chemicals0.49%-0.39 ppIndustrial Gases0.41%+0.20 ppPaper & Plastic Packaging Products & Materials0.12%-0.15 ppCopper0.06%-0.10 ppConstruction Materials0.09%-0.10 ppGold0.06%-0.07 ppSteel0.06%-0.06 ppFertilizers & Agricultural Chemicals0.08%-0.03 ppMetal, Glass & Plastic Containers0.06%-0.02 ppCommodity Chemicals0.00%+0.00 pp
3 · Sub-industry
Inside Fertilizers & Agricultural Chemicals
Fertilizers & Agricultural Chemicals · weight
0.08%
Industry change · 12M
-0.03 pp
Fertilizers & Agricultural Chemicals · contribution
-0.033 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Nov 2018 · 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 |
|---|---|---|---|---|---|---|---|
| CF Industries → CF | United States | $9.7bn | 0.032% | -0.007 pp | -0.024 pp | +2.2% | No |
| Mosaic Company (The) → MOS | United States | $13.9bn | 0.046% | +0.007 pp | -0.009 pp | +32.2% | 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.