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

Information Technology17.4%+1.34 ppEnergy5.1%+0.43 ppReal Estate3.5%+0.28 ppUtilities3.4%+0.26 ppHealth Care16.9%+0.12 ppConsumer Discretionary7.0%-0.03 ppMaterials2.1%-0.04 ppCommunication Services3.3%-0.15 ppConsumer Staples8.8%-0.60 ppFinancials17.7%-0.75 ppIndustrials14.7%-0.86 pp

2 · Industry

Inside Materials

Paper & Plastic Packaging Products & Materials0.24%-0.03 ppSpecialty Chemicals0.86%-0.02 ppFertilizers & Agricultural Chemicals0.13%+0.02 ppCopper0.15%-0.01 ppConstruction Materials0.19%+0.00 ppIndustrial Gases0.21%-0.00 ppGold0.12%-0.00 ppMetal, Glass & Plastic Containers0.08%-0.00 ppSteel0.12%-0.00 ppCommodity Chemicals0.00%+0.00 pp

3 · Sub-industry

Inside Construction Materials

Construction Materials0.19%+0.005 pp
Concentrated

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

View all contributions →
Construction Materials · weight
0.19%
Industry change · 12M
+0.00 pp
Construction Materials · contribution
+0.005 pp
Company participation
100%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

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

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Martin Marietta Materials →
MLM
United States$14.1bn0.085%+0.005 pp+0.003 pp-1.7%Yes
Vulcan Materials Company →
VMC
United States$17.1bn0.104%+0.011 pp+0.001 pp-4.3%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.