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

Industrials10.8%+1.00 ppConsumer Discretionary12.0%+1.00 ppFinancials11.9%+0.68 ppInformation Technology27.8%+0.62 ppConsumer Staples7.8%+0.06 ppMaterials2.9%-0.19 ppEnergy3.3%-0.23 ppReal Estate2.6%-0.43 ppCommunication Services2.7%-0.45 ppUtilities2.9%-0.48 ppHealth Care15.3%-1.58 pp

2 · Industry

Inside Materials

Paper & Plastic Packaging Products & Materials0.32%-0.08 ppIndustrial Gases0.77%-0.07 ppFertilizers & Agricultural Chemicals0.18%-0.06 ppConstruction Materials0.20%+0.05 ppSpecialty Chemicals0.69%-0.05 ppCopper0.21%+0.02 ppCommodity Chemicals0.12%-0.01 ppSteel0.18%-0.01 ppGold0.14%+0.01 ppMetal, Glass & Plastic Containers0.06%+0.01 pp

3 · Sub-industry

Inside Construction Materials

Construction Materials0.20%+0.049 pp
Concentrated

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

View all contributions →
Construction Materials · weight
0.20%
Industry change · 12M
+0.05 pp
Construction Materials · contribution
+0.049 pp
Company participation
100%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Apr 2024 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Martin Marietta Materials →
MLM
United States$36.2bn0.105%+0.011 pp+0.029 pp+62.6%Yes
Vulcan Materials Company →
VMC
United States$34.1bn0.099%+0.009 pp+0.020 pp+48.3%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.