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

Information Technology34.8%+5.79 ppFinancials11.4%+0.39 ppUtilities2.9%-0.05 ppIndustrials9.8%-0.10 ppConsumer Staples7.0%-0.16 ppReal Estate2.6%-0.19 ppMaterials2.5%-0.37 ppCommunication Services2.5%-0.40 ppConsumer Discretionary11.2%-0.92 ppEnergy2.5%-1.08 ppHealth Care12.9%-2.90 pp

2 · Industry

Inside Materials

Industrial Gases0.67%-0.17 ppSpecialty Chemicals0.60%-0.08 ppSteel0.13%-0.06 ppFertilizers & Agricultural Chemicals0.15%-0.05 ppCommodity Chemicals0.08%-0.03 ppPaper & Plastic Packaging Products & Materials0.38%+0.03 ppGold0.12%+0.02 ppCopper0.15%-0.01 ppMetal, Glass & Plastic Containers0.04%-0.01 ppConstruction Materials0.17%-0.00 pp

3 · Sub-industry

Inside Steel

Steel0.13%-0.059 pp
Concentrated

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

View all contributions →
Steel · weight
0.13%
Industry change · 12M
-0.06 pp
Steel · contribution
-0.059 pp
Company participation
100%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

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

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Nucor →
NUE
United States$33.7bn0.079%+0.009 pp-0.046 pp-2.8%Yes
Steel Dynamics →
STLD
United States$20.1bn0.047%+0.010 pp-0.013 pp+24.3%Yes

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.