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 Discretionary10.9%+3.79 ppEnergy3.6%+1.54 ppConsumer Staples7.7%+0.73 ppUtilities3.6%+0.56 ppHealth Care16.5%+0.26 ppReal Estate3.3%+0.06 ppMaterials3.0%-0.23 ppCommunication Services3.5%-0.87 ppInformation Technology26.2%-1.69 ppFinancials11.9%-1.97 ppIndustrials9.8%-2.17 pp

2 · Industry

Inside Materials

Specialty Chemicals0.80%-0.14 ppFertilizers & Agricultural Chemicals0.30%+0.12 ppPaper & Plastic Packaging Products & Materials0.47%-0.04 ppMetal, Glass & Plastic Containers0.06%-0.04 ppIndustrial Gases0.70%-0.04 ppGold0.12%-0.04 ppCopper0.15%-0.03 ppCommodity Chemicals0.13%-0.03 ppSteel0.12%+0.01 ppConstruction Materials0.16%-0.01 pp

3 · Sub-industry

Inside Construction Materials

Construction Materials0.16%-0.005 pp
Concentrated

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

View all contributions →
Construction Materials · weight
0.16%
Industry change · 12M
-0.01 pp
Construction Materials · contribution
-0.005 pp
Company participation
100%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

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

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Vulcan Materials Company →
VMC
United States$22.1bn0.079%+0.000 pp-0.003 pp-9.7%Yes
Martin Marietta Materials →
MLM
United States$21.7bn0.078%+0.001 pp-0.002 pp-8.2%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.