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 Technology39.6%+4.74 ppConsumer Discretionary12.3%+1.05 ppUtilities2.7%-0.15 ppFinancials11.2%-0.18 ppIndustrials9.5%-0.27 ppEnergy2.2%-0.34 ppCommunication Services2.1%-0.37 ppReal Estate2.1%-0.48 ppMaterials2.0%-0.52 ppConsumer Staples5.9%-1.08 ppHealth Care10.5%-2.40 pp

2 · Industry

Inside Real Estate

Telecom Tower REITs0.28%-0.12 ppData Center REITs0.28%-0.07 ppSelf-Storage REITs0.15%-0.07 ppMulti-Family Residential REITs0.15%-0.06 ppRetail REITs0.27%-0.05 ppHealth Care REITs0.34%+0.04 ppOffice REITs0.04%-0.03 ppOther Specialized REITs0.06%-0.03 ppHotel & Resort REITs0.08%-0.02 ppTimber REITs0.03%-0.02 ppIndustrial REITs0.23%-0.02 ppReal Estate Services0.15%-0.02 ppSingle-Family Residential REITs0.03%-0.01 pp

3 · Sub-industry

Inside Data Center REITs

Data Center REITs0.28%-0.066 pp
Concentrated

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

View all contributions →
Data Center REITs · weight
0.28%
Industry change · 12M
-0.07 pp
Data Center REITs · contribution
-0.066 pp
Company participation
0%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

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

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Equinix →
EQIX
United States$83.1bn0.163%+0.001 pp-0.043 pp-4.8%No
Digital Realty →
DLR
United States$58.5bn0.115%-0.011 pp-0.022 pp-1.6%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.