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 Technology33.3%+4.48 ppFinancials11.4%+0.74 ppConsumer Staples7.3%+0.20 ppUtilities2.8%-0.07 ppIndustrials9.8%-0.20 ppReal Estate2.7%-0.24 ppMaterials2.6%-0.32 ppCommunication Services2.4%-0.40 ppEnergy2.6%-0.86 ppConsumer Discretionary10.9%-1.64 ppHealth Care14.2%-1.69 pp

2 · Industry

Inside Materials

Industrial Gases0.70%-0.11 ppSpecialty Chemicals0.64%-0.09 ppSteel0.13%-0.06 ppFertilizers & Agricultural Chemicals0.15%-0.05 ppGold0.15%+0.05 ppPaper & Plastic Packaging Products & Materials0.39%+0.03 ppCommodity Chemicals0.09%-0.03 ppCopper0.15%-0.03 ppConstruction Materials0.16%-0.02 ppMetal, Glass & Plastic Containers0.05%-0.01 pp

3 · Sub-industry

Inside Steel

Steel0.13%-0.061 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
-0.061 pp
Company participation
0%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

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

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Nucor →
NUE
United States$36.1bn0.087%+0.010 pp-0.049 pp-10.6%No
Steel Dynamics →
STLD
United States$18.4bn0.045%+0.004 pp-0.012 pp+13.7%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.