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

Materials32.1%+29.08 ppEnergy2.4%-0.93 ppReal Estate2.0%-1.30 ppUtilities2.1%-1.36 ppCommunication Services1.9%-1.47 ppConsumer Discretionary8.6%-2.35 ppConsumer Staples4.9%-2.62 ppIndustrials7.0%-2.73 ppFinancials7.7%-3.97 ppHealth Care10.9%-5.94 ppInformation Technology20.2%-6.43 pp

2 · Industry

Inside Materials

Paper & Plastic Packaging Products & Materials30.28%+29.80 ppSpecialty Chemicals0.51%-0.27 ppIndustrial Gases0.56%-0.14 ppFertilizers & Agricultural Chemicals0.15%-0.13 ppGold0.07%-0.05 ppCommodity Chemicals0.09%-0.04 ppMetal, Glass & Plastic Containers0.04%-0.04 ppConstruction Materials0.12%-0.03 ppCopper0.14%-0.02 ppSteel0.13%+0.01 pp

3 · Sub-industry

Inside Steel

Steel0.13%+0.009 pp
Concentrated

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

View all contributions →
Steel · weight
0.13%
Industry change · 12M
+0.01 pp
Steel · contribution
+0.009 pp
Company participation
0%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

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

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Steel Dynamics →
STLD
United States$18.0bn0.039%-0.021 pp+0.039 pp+39.1%No
Nucor →
NUE
United States$43.2bn0.094%-0.032 pp-0.030 pp+28.6%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.