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

Utilities99.9%+96.11 ppMaterials0.0%-2.52 ppCommunication Services0.0%-3.57 ppReal Estate0.0%-3.65 ppEnergy0.0%-4.33 ppConsumer Discretionary0.0%-7.10 ppConsumer Staples0.0%-8.79 ppIndustrials0.0%-14.17 ppFinancials0.0%-16.46 ppInformation Technology0.0%-17.45 ppHealth Care0.0%-18.06 pp

2 · Industry

Inside Materials

Specialty Chemicals0.00%-0.83 ppIndustrial Gases0.00%-0.78 ppPaper & Plastic Packaging Products & Materials0.00%-0.21 ppConstruction Materials0.00%-0.15 ppFertilizers & Agricultural Chemicals0.00%-0.12 ppCopper0.00%-0.11 ppSteel0.00%-0.11 ppMetal, Glass & Plastic Containers0.00%-0.11 ppGold0.00%-0.11 ppCommodity Chemicals0.00%+0.00 pp

3 · Sub-industry

Inside Steel

Steel0.00%-0.107 pp
Concentrated

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

View all contributions →
Steel · weight
0.00%
Industry change · 12M
-0.11 pp
Steel · contribution
-0.107 pp
Company participation
0%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Feb 2020 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Nucor →
NUE
United States$12.4bn0.000%-0.086 pp-0.107 pp-29.7%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.