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 Technology40.9%+4.04 ppEnergy3.9%+1.55 ppHealth Care10.6%+0.01 ppCommunication Services2.3%-0.19 ppMaterials2.0%-0.23 ppReal Estate1.9%-0.31 ppIndustrials9.3%-0.48 ppUtilities2.2%-0.48 ppConsumer Staples5.5%-0.92 ppConsumer Discretionary10.8%-1.27 ppFinancials10.5%-1.72 pp

2 · Industry

Inside Real Estate

Telecom Tower REITs0.22%-0.11 ppReal Estate Services0.09%-0.09 ppHealth Care REITs0.38%+0.06 ppMulti-Family Residential REITs0.13%-0.04 ppRetail REITs0.26%-0.03 ppSelf-Storage REITs0.14%-0.03 ppHotel & Resort REITs0.07%-0.03 ppOffice REITs0.03%-0.02 ppSingle-Family Residential REITs0.03%-0.01 ppTimber REITs0.03%-0.01 ppData Center REITs0.28%+0.00 ppIndustrial REITs0.22%-0.00 ppOther Specialized REITs0.06%+0.00 pp

3 · Sub-industry

Inside Data Center REITs

Data Center REITs0.28%+0.003 pp
Concentrated

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

View all contributions →
Data Center REITs · weight
0.28%
Industry change · 12M
+0.00 pp
Data Center REITs · contribution
+0.003 pp
Company participation
100%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

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

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Equinix →
EQIX
United States$103.3bn0.172%-0.011 pp+0.013 pp+36.0%Yes
Digital Realty →
DLR
United States$65.2bn0.109%-0.007 pp-0.010 pp+13.9%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.