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
Data Center REITs · weight
0.37%
Industry change · 12M
+0.04 pp
Data Center REITs · contribution
+0.043 pp
Company participation
100%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Nov 2023 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Equinix →
EQIX
United States$76.5bn0.239%+0.006 pp+0.022 pp+20.4%Yes
Digital Realty →
DLR
United States$42.0bn0.131%+0.004 pp+0.021 pp+28.9%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.