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

Materials29.6%+26.36 ppConsumer Discretionary9.0%+2.52 ppEnergy2.3%-1.14 ppReal Estate2.1%-1.36 ppUtilities2.2%-1.54 ppCommunication Services2.1%-1.79 ppIndustrials7.2%-2.86 ppConsumer Staples5.1%-3.17 ppFinancials7.8%-4.56 ppInformation Technology21.1%-5.55 ppHealth Care11.5%-6.91 pp

2 · Industry

Inside Materials

Paper & Plastic Packaging Products & Materials27.71%+27.19 ppSpecialty Chemicals0.54%-0.29 ppIndustrial Gases0.59%-0.18 ppFertilizers & Agricultural Chemicals0.15%-0.14 ppGold0.08%-0.11 ppCommodity Chemicals0.09%-0.06 ppMetal, Glass & Plastic Containers0.04%-0.04 ppCopper0.13%-0.03 ppSteel0.14%+0.03 ppConstruction Materials0.14%-0.01 pp

3 · Sub-industry

Inside Construction Materials

Construction Materials0.14%-0.010 pp
Concentrated

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

View all contributions →
Construction Materials · weight
0.14%
Industry change · 12M
-0.01 pp
Construction Materials · contribution
-0.010 pp
Company participation
0%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Jun 2023 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Martin Marietta Materials →
MLM
United States$28.6bn0.066%-0.009 pp-0.006 pp+55.4%No
Vulcan Materials Company →
VMC
United States$30.0bn0.069%-0.008 pp-0.004 pp+60.1%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.