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 Discretionary48.2%+41.13 ppMaterials1.1%-1.05 ppUtilities2.0%-1.12 ppReal Estate2.0%-1.28 ppCommunication Services2.0%-1.49 ppEnergy2.5%-2.22 ppConsumer Staples5.2%-4.15 ppInformation Technology9.8%-6.27 ppHealth Care10.0%-6.71 ppIndustrials7.6%-7.94 ppFinancials9.6%-8.89 pp

2 · Industry

Inside Materials

Specialty Chemicals0.47%-0.41 ppPaper & Plastic Packaging Products & Materials0.12%-0.15 ppCopper0.06%-0.10 ppConstruction Materials0.08%-0.10 ppIndustrial Gases0.11%-0.10 ppGold0.06%-0.07 ppSteel0.06%-0.06 ppFertilizers & Agricultural Chemicals0.08%-0.03 ppMetal, Glass & Plastic Containers0.05%-0.02 ppCommodity Chemicals0.00%+0.00 pp

3 · Sub-industry

Inside Construction Materials

Construction Materials0.08%-0.102 pp
Concentrated

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

View all contributions →
Construction Materials · weight
0.08%
Industry change · 12M
-0.10 pp
Construction Materials · contribution
-0.102 pp
Company participation
0%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Oct 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$13.4bn0.045%-0.041 pp-0.057 pp-24.8%No
Martin Marietta Materials →
MLM
United States$10.8bn0.037%-0.037 pp-0.045 pp-24.4%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.