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›Office REITs›Office REITs

1 · Sector

Weight and 12M allocation change

Consumer Discretionary53.6%+53.57 ppInformation Technology13.3%+13.32 ppHealth Care7.9%+7.89 ppFinancials7.2%+7.19 ppIndustrials6.2%+6.17 ppConsumer Staples3.6%+3.57 ppCommunication Services2.4%+2.43 ppMaterials1.6%+1.59 ppReal Estate1.5%+1.47 ppEnergy1.2%+1.18 ppUtilities1.5%-98.38 pp

2 · Industry

Inside Real Estate

Telecom Tower REITs0.38%+0.38 ppData Center REITs0.19%+0.19 ppRetail REITs0.16%+0.16 ppIndustrial REITs0.15%+0.15 ppMulti-Family Residential REITs0.14%+0.14 ppHealth Care REITs0.13%+0.13 ppSelf-Storage REITs0.11%+0.11 ppOffice REITs0.07%+0.07 ppReal Estate Services0.05%+0.05 ppTimber REITs0.05%+0.05 ppHotel & Resort REITs0.02%+0.02 ppOther Specialized REITs0.02%+0.02 ppSingle-Family Residential REITs0.00%+0.00 pp

3 · Sub-industry

Inside Office REITs

Office REITs0.07%+0.074 pp
Concentrated

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

View all contributions →
Office REITs · weight
0.07%
Industry change · 12M
+0.07 pp
Office REITs · contribution
+0.074 pp
Company participation
0%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Feb 2021 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Alexandria Real Estate Equities →
ARE
United States$21.8bn0.044%-0.050 pp+0.044 pp+8.0%No
BXP, Inc. →
BXP
United States$15.4bn0.031%-0.034 pp+0.031 pp-19.6%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.