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
Universe›Materials›Paper & Plastic Packaging Products & Materials›Paper & Plastic Packaging Products & Materials
1 · Sector
Weight and 12M allocation change
2 · Industry
Inside Materials
Paper & Plastic Packaging Products & Materials0.33%-31.37 ppIndustrial Gases0.64%+0.13 ppSpecialty Chemicals0.53%+0.06 ppFertilizers & Agricultural Chemicals0.17%+0.05 ppGold0.13%+0.04 ppCommodity Chemicals0.04%-0.03 ppConstruction Materials0.15%+0.02 ppCopper0.13%-0.02 ppSteel0.10%-0.02 ppMetal, Glass & Plastic Containers0.03%-0.01 pp
3 · Sub-industry
Inside Paper & Plastic Packaging Products & Materials
Paper & Plastic Packaging Products & Materials · weight
0.33%
Industry change · 12M
-31.37 pp
Paper & Plastic Packaging Products & Materials · contribution
-31.373 pp
Company participation
20%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
May 2025 · 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 |
|---|---|---|---|---|---|---|---|
| Packaging Corporation of America → PKG | United States | $17.4bn | 0.039% | -0.003 pp | -31.456 pp | +7.9% | No |
| Smurfit Westrock → SW | United States | $22.6bn | 0.051% | -0.009 pp | +0.051 pp | -10.7% | No |
| International Paper → IP | United States | $25.2bn | 0.057% | -0.009 pp | +0.027 pp | +9.9% | Yes |
| Amcor → AMCR | United States | $65.8bn | 0.149% | -0.014 pp | +0.009 pp | -5.8% | No |
| Avery Dennison → AVY | United States | $13.9bn | 0.031% | -0.002 pp | -0.004 pp | -20.6% | 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.