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 & Materials0.61%+0.50 ppIndustrial Gases0.82%+0.41 ppSpecialty Chemicals0.78%+0.29 ppCommodity Chemicals0.20%+0.20 ppFertilizers & Agricultural Chemicals0.19%+0.11 ppGold0.16%+0.10 ppConstruction Materials0.18%+0.09 ppMetal, Glass & Plastic Containers0.11%+0.05 ppCopper0.08%+0.03 ppSteel0.09%+0.02 pp
3 · Sub-industry
Inside Metal, Glass & Plastic Containers
Metal, Glass & Plastic Containers · weight
0.11%
Industry change · 12M
+0.05 pp
Metal, Glass & Plastic Containers · contribution
+0.054 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Nov 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 |
|---|---|---|---|---|---|---|---|
| Ball Corporation → BALL | United States | $21.6bn | 0.109% | -0.036 pp | +0.054 pp | +35.6% | 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.