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 Technology41.9%+7.32 ppEnergy2.5%+0.19 ppConsumer Discretionary11.8%-0.20 ppMaterials2.0%-0.21 ppCommunication Services2.4%-0.32 ppReal Estate2.0%-0.41 ppUtilities2.4%-0.43 ppIndustrials9.6%-0.50 ppHealth Care9.7%-1.47 ppConsumer Staples5.7%-1.52 ppFinancials9.8%-2.46 pp

2 · Industry

Inside Real Estate

Telecom Tower REITs0.26%-0.13 ppReal Estate Services0.09%-0.07 ppMulti-Family Residential REITs0.14%-0.06 ppSelf-Storage REITs0.15%-0.05 ppRetail REITs0.27%-0.03 ppData Center REITs0.30%-0.03 ppHealth Care REITs0.35%+0.02 ppHotel & Resort REITs0.08%-0.02 ppOffice REITs0.03%-0.02 ppSingle-Family Residential REITs0.03%-0.02 ppTimber REITs0.03%-0.01 ppIndustrial REITs0.23%+0.00 ppOther Specialized REITs0.07%+0.00 pp

3 · Sub-industry

Inside Data Center REITs

Data Center REITs0.30%-0.030 pp
Concentrated

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

View all contributions →
Data Center REITs · weight
0.30%
Industry change · 12M
-0.03 pp
Data Center REITs · contribution
-0.030 pp
Company participation
100%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

May 2026 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Digital Realty →
DLR
United States$66.8bn0.116%+0.032 pp-0.015 pp+14.0%Yes
Equinix →
EQIX
United States$105.3bn0.183%+0.051 pp-0.014 pp+22.9%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.