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 Chemicals0.48%-0.40 ppPaper & Plastic Packaging Products & Materials0.13%-0.14 ppConstruction Materials0.09%-0.10 ppCopper0.07%-0.10 ppIndustrial Gases0.12%-0.09 ppGold0.05%-0.07 ppSteel0.06%-0.06 ppFertilizers & Agricultural Chemicals0.08%-0.03 ppMetal, Glass & Plastic Containers0.05%-0.03 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
Aug 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 | $12.1bn | 0.039% | -0.019 pp | -0.017 pp | +25.1% | No |
| Mosaic Company (The) → MOS | United States | $12.1bn | 0.039% | -0.025 pp | -0.016 pp | +14.8% | 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.