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 Technology28.6%+15.24 ppHealth Care16.6%+8.70 ppFinancials13.3%+6.14 ppIndustrials10.2%+4.03 ppConsumer Staples7.5%+3.95 ppEnergy3.1%+1.92 ppReal Estate3.2%+1.74 ppUtilities3.2%+1.64 ppMaterials3.2%+1.62 ppCommunication Services3.9%+1.42 ppConsumer Discretionary7.2%-46.41 pp

2 · Industry

Inside Materials

Specialty Chemicals0.83%+0.43 ppIndustrial Gases0.70%+0.33 ppPaper & Plastic Packaging Products & Materials0.46%+0.20 ppFertilizers & Agricultural Chemicals0.26%+0.15 ppCopper0.24%+0.14 ppGold0.18%+0.10 ppSteel0.12%+0.09 ppConstruction Materials0.17%+0.08 ppCommodity Chemicals0.15%+0.06 ppMetal, Glass & Plastic Containers0.10%+0.04 pp

3 · Sub-industry

Inside Steel

Steel0.12%+0.087 pp
Concentrated

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

View all contributions →
Steel · weight
0.12%
Industry change · 12M
+0.09 pp
Steel · contribution
+0.087 pp
Company participation
100%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

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

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Nucor →
NUE
United States$35.4bn0.123%+0.020 pp+0.087 pp+124.0%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.