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

Health Care18.1%+1.27 ppUtilities3.8%+0.64 ppInformation Technology17.5%+0.52 ppReal Estate3.7%+0.46 ppMaterials2.5%+0.41 ppCommunication Services3.6%+0.24 ppConsumer Discretionary7.1%+0.12 ppEnergy4.3%-0.09 ppConsumer Staples8.8%-0.25 ppIndustrials14.2%-1.17 ppFinancials16.5%-2.16 pp

2 · Industry

Inside Materials

Industrial Gases0.78%+0.57 ppPaper & Plastic Packaging Products & Materials0.21%-0.06 ppCopper0.11%-0.05 ppSpecialty Chemicals0.83%-0.03 ppMetal, Glass & Plastic Containers0.11%+0.02 ppSteel0.11%-0.02 ppConstruction Materials0.15%-0.02 ppGold0.11%-0.02 ppFertilizers & Agricultural Chemicals0.12%+0.01 ppCommodity Chemicals0.00%+0.00 pp

3 · Sub-industry

Inside Construction Materials

Construction Materials0.15%-0.017 pp
Concentrated

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

View all contributions →
Construction Materials · weight
0.15%
Industry change · 12M
-0.02 pp
Construction Materials · contribution
-0.017 pp
Company participation
100%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Feb 2019 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Martin Marietta Materials →
MLM
United States$11.7bn0.068%+0.028 pp-0.009 pp-7.1%Yes
Vulcan Materials Company →
VMC
United States$14.7bn0.085%+0.039 pp-0.008 pp-4.4%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.