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 Discretionary11.0%+3.01 ppEnergy3.9%+1.57 ppHealth Care17.5%+1.30 ppConsumer Staples7.7%+0.79 ppUtilities3.4%+0.46 ppIndustrials10.1%+0.13 ppReal Estate3.2%-0.06 ppMaterials3.1%-0.11 ppCommunication Services3.2%-0.50 ppFinancials12.4%-0.81 ppInformation Technology24.5%-5.78 pp

2 · Industry

Inside Materials

Specialty Chemicals0.77%-0.19 ppFertilizers & Agricultural Chemicals0.29%+0.10 ppMetal, Glass & Plastic Containers0.06%-0.04 ppIndustrial Gases0.80%+0.03 ppSteel0.13%+0.03 ppGold0.13%-0.02 ppCommodity Chemicals0.12%-0.02 ppConstruction Materials0.16%-0.01 ppCopper0.19%+0.01 ppPaper & Plastic Packaging Products & Materials0.45%+0.00 pp

3 · Sub-industry

Inside Construction Materials

Construction Materials0.16%-0.011 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
-0.011 pp
Company participation
100%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

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

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Martin Marietta Materials →
MLM
United States$22.8bn0.077%-0.000 pp-0.008 pp-8.5%Yes
Vulcan Materials Company →
VMC
United States$24.4bn0.083%+0.004 pp-0.003 pp-3.5%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.