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

Consumer Discretionary11.6%+3.82 ppEnergy4.1%+1.64 ppHealth Care17.5%+1.01 ppConsumer Staples7.7%+0.70 ppUtilities3.4%+0.36 ppReal Estate3.1%-0.10 ppMaterials2.9%-0.29 ppIndustrials9.8%-0.41 ppCommunication Services3.3%-0.64 ppFinancials12.1%-2.06 ppInformation Technology24.5%-4.05 pp

2 · Industry

Inside Materials

Specialty Chemicals0.75%-0.19 ppFertilizers & Agricultural Chemicals0.31%+0.11 ppIndustrial Gases0.72%-0.05 ppMetal, Glass & Plastic Containers0.06%-0.04 ppPaper & Plastic Packaging Products & Materials0.44%-0.04 ppGold0.12%-0.02 ppCopper0.16%-0.02 ppCommodity Chemicals0.12%-0.02 ppConstruction Materials0.15%-0.01 ppSteel0.12%+0.01 pp

3 · Sub-industry

Inside Steel

Steel0.12%+0.013 pp
Concentrated

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

View all contributions →
Steel · weight
0.12%
Industry change · 12M
+0.01 pp
Steel · contribution
+0.013 pp
Company participation
100%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Oct 2022 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Nucor →
NUE
United States$34.4bn0.122%-0.002 pp+0.013 pp+19.7%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.