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

Health Care17.9%+1.29 ppInformation Technology17.9%+0.79 ppUtilities3.9%+0.52 ppMaterials2.5%+0.42 ppReal Estate3.8%+0.41 ppCommunication Services3.6%+0.24 ppConsumer Discretionary7.2%+0.13 ppConsumer Staples9.1%-0.01 ppEnergy4.4%-0.26 ppIndustrials13.8%-1.36 ppFinancials16.0%-2.17 pp

2 · Industry

Inside Real Estate

Telecom Tower REITs0.93%+0.15 ppHealth Care REITs0.39%+0.09 ppRetail REITs0.59%+0.08 ppIndustrial REITs0.26%+0.05 ppMulti-Family Residential REITs0.41%+0.05 ppTimber REITs0.11%-0.05 ppOffice REITs0.21%+0.02 ppData Center REITs0.35%+0.02 ppSelf-Storage REITs0.29%+0.01 ppHotel & Resort REITs0.08%-0.00 ppReal Estate Services0.10%-0.00 ppOther Specialized REITs0.06%+0.00 ppSingle-Family Residential REITs0.00%+0.00 pp

3 · Sub-industry

Inside Data Center REITs

Data Center REITs0.35%+0.016 pp
Concentrated

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

View all contributions →
Data Center REITs · weight
0.35%
Industry change · 12M
+0.02 pp
Data Center REITs · contribution
+0.016 pp
Company participation
100%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Mar 2019 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Digital Realty →
DLR
United States$24.7bn0.142%+0.063 pp+0.009 pp+17.1%Yes
Equinix →
EQIX
United States$36.6bn0.211%+0.109 pp+0.007 pp+10.9%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.