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›Real Estate›Data Center REITs›Data Center REITs

1 · Sector

Weight and 12M allocation change

Information Technology37.8%+2.39 ppIndustrials9.6%+0.25 ppMaterials2.2%+0.06 ppUtilities2.6%-0.01 ppFinancials11.9%-0.11 ppEnergy2.3%-0.17 ppReal Estate2.1%-0.28 ppCommunication Services2.2%-0.31 ppHealth Care11.3%-0.33 ppConsumer Staples6.0%-0.70 ppConsumer Discretionary12.0%-0.78 pp

2 · Industry

Inside Real Estate

Data Center REITs0.25%-0.09 ppHealth Care REITs0.34%+0.08 ppTelecom Tower REITs0.28%-0.06 ppSelf-Storage REITs0.14%-0.05 ppMulti-Family Residential REITs0.16%-0.05 ppRetail REITs0.27%-0.03 ppOffice REITs0.04%-0.03 ppOther Specialized REITs0.05%-0.02 ppHotel & Resort REITs0.08%-0.01 ppTimber REITs0.03%-0.01 ppSingle-Family Residential REITs0.03%-0.01 ppIndustrial REITs0.23%+0.01 ppReal Estate Services0.15%-0.01 pp

3 · Sub-industry

Inside Data Center REITs

Data Center REITs0.25%-0.088 pp
Concentrated

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

View all contributions →
Data Center REITs · weight
0.25%
Industry change · 12M
-0.09 pp
Data Center REITs · contribution
-0.088 pp
Company participation
0%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Dec 2025 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Equinix →
EQIX
United States$75.2bn0.147%-0.006 pp-0.059 pp-16.9%No
Digital Realty →
DLR
United States$53.1bn0.104%-0.014 pp-0.029 pp-10.1%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.