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›Construction Materials›Construction Materials

1 · Sector

Weight and 12M allocation change

Consumer Discretionary47.6%+40.56 ppMaterials1.4%-0.73 ppUtilities2.1%-1.09 ppReal Estate2.0%-1.22 ppCommunication Services2.1%-1.38 ppEnergy2.4%-2.26 ppConsumer Staples5.2%-4.20 ppHealth Care10.5%-6.24 ppInformation Technology9.7%-6.37 ppIndustrials7.4%-8.17 ppFinancials9.6%-8.90 pp

2 · Industry

Inside Materials

Specialty Chemicals0.49%-0.39 ppIndustrial Gases0.41%+0.20 ppPaper & Plastic Packaging Products & Materials0.12%-0.15 ppCopper0.06%-0.10 ppConstruction Materials0.09%-0.10 ppGold0.06%-0.07 ppSteel0.06%-0.06 ppFertilizers & Agricultural Chemicals0.08%-0.03 ppMetal, Glass & Plastic Containers0.06%-0.02 ppCommodity Chemicals0.00%+0.00 pp

3 · Sub-industry

Inside Construction Materials

Construction Materials0.09%-0.098 pp
Concentrated

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

View all contributions →
Construction Materials · weight
0.09%
Industry change · 12M
-0.10 pp
Construction Materials · contribution
-0.098 pp
Company participation
0%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Nov 2018 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Vulcan Materials Company →
VMC
United States$14.0bn0.046%-0.001 pp-0.056 pp-21.2%No
Martin Marietta Materials →
MLM
United States$12.0bn0.040%-0.001 pp-0.042 pp-15.7%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.