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

Materials33.4%+3.81 ppIndustrials7.3%+0.36 ppFinancials8.1%+0.32 ppConsumer Staples5.3%-0.02 ppEnergy2.2%-0.17 ppUtilities2.1%-0.18 ppCommunication Services1.9%-0.26 ppReal Estate1.8%-0.32 ppConsumer Discretionary7.9%-0.56 ppHealth Care10.3%-1.48 ppInformation Technology19.7%-1.49 pp

2 · Industry

Inside Materials

Paper & Plastic Packaging Products & Materials31.70%+3.91 ppIndustrial Gases0.51%-0.06 ppSpecialty Chemicals0.47%-0.04 ppFertilizers & Agricultural Chemicals0.12%-0.03 ppCopper0.14%+0.02 ppGold0.09%+0.01 ppCommodity Chemicals0.08%-0.01 ppConstruction Materials0.13%+0.01 ppSteel0.12%-0.00 ppMetal, Glass & Plastic Containers0.04%+0.00 pp

3 · Sub-industry

Inside Steel

Steel0.12%-0.003 pp
Concentrated

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

View all contributions →
Steel · weight
0.12%
Industry change · 12M
-0.00 pp
Steel · contribution
-0.003 pp
Company participation
0%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

May 2024 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Nucor →
NUE
United States$40.5bn0.077%-0.055 pp-0.005 pp+29.4%No
Steel Dynamics →
STLD
United States$21.0bn0.040%-0.020 pp+0.002 pp+47.8%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.