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 Discretionary11.6%+3.82 ppEnergy4.1%+1.64 ppHealth Care17.5%+1.01 ppConsumer Staples7.7%+0.70 ppUtilities3.4%+0.36 ppReal Estate3.1%-0.10 ppMaterials2.9%-0.29 ppIndustrials9.8%-0.41 ppCommunication Services3.3%-0.64 ppFinancials12.1%-2.06 ppInformation Technology24.5%-4.05 pp

2 · Industry

Inside Materials

Specialty Chemicals0.75%-0.19 ppFertilizers & Agricultural Chemicals0.31%+0.11 ppIndustrial Gases0.72%-0.05 ppMetal, Glass & Plastic Containers0.06%-0.04 ppPaper & Plastic Packaging Products & Materials0.44%-0.04 ppGold0.12%-0.02 ppCopper0.16%-0.02 ppCommodity Chemicals0.12%-0.02 ppConstruction Materials0.15%-0.01 ppSteel0.12%+0.01 pp

3 · Sub-industry

Inside Construction Materials

Construction Materials0.15%-0.015 pp
Concentrated

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

View all contributions →
Construction Materials · weight
0.15%
Industry change · 12M
-0.01 pp
Construction Materials · contribution
-0.015 pp
Company participation
0%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Oct 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$21.0bn0.074%-0.001 pp-0.007 pp-13.9%No
Vulcan Materials Company →
VMC
United States$21.8bn0.077%+0.002 pp-0.007 pp-13.1%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.