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›Steel›Steel

1 · Sector

Weight and 12M allocation change

Materials29.6%+26.36 ppConsumer Discretionary9.0%+2.52 ppEnergy2.3%-1.14 ppReal Estate2.1%-1.36 ppUtilities2.2%-1.54 ppCommunication Services2.1%-1.79 ppIndustrials7.2%-2.86 ppConsumer Staples5.1%-3.17 ppFinancials7.8%-4.56 ppInformation Technology21.1%-5.55 ppHealth Care11.5%-6.91 pp

2 · Industry

Inside Materials

Paper & Plastic Packaging Products & Materials27.71%+27.19 ppSpecialty Chemicals0.54%-0.29 ppIndustrial Gases0.59%-0.18 ppFertilizers & Agricultural Chemicals0.15%-0.14 ppGold0.08%-0.11 ppCommodity Chemicals0.09%-0.06 ppMetal, Glass & Plastic Containers0.04%-0.04 ppCopper0.13%-0.03 ppSteel0.14%+0.03 ppConstruction Materials0.14%-0.01 pp

3 · Sub-industry

Inside Steel

Steel0.14%+0.030 pp
Concentrated

Most of this industry's gains came from a few companies.

View all contributions →
Steel · weight
0.14%
Industry change · 12M
+0.03 pp
Steel · contribution
+0.030 pp
Company participation
0%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Jun 2023 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Steel Dynamics →
STLD
United States$18.4bn0.043%-0.024 pp+0.043 pp+67.3%No
Nucor →
NUE
United States$41.2bn0.095%-0.037 pp-0.013 pp+59.4%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.