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

Materials29.6%+26.14 ppConsumer Discretionary8.5%+1.82 ppReal Estate2.1%-1.21 ppUtilities2.3%-1.33 ppEnergy2.3%-1.64 ppCommunication Services2.1%-1.72 ppConsumer Staples5.3%-2.38 ppIndustrials6.9%-3.12 ppFinancials7.8%-5.05 ppHealth Care11.8%-5.74 ppInformation Technology21.2%-5.77 pp

2 · Industry

Inside Real Estate

Telecom Tower REITs0.39%-0.45 ppMulti-Family Residential REITs0.19%-0.16 ppRetail REITs0.24%-0.15 ppSelf-Storage REITs0.17%-0.12 ppHealth Care REITs0.16%-0.12 ppData Center REITs0.25%-0.12 ppOffice REITs0.07%-0.09 ppIndustrial REITs0.28%-0.06 ppHotel & Resort REITs0.11%+0.05 ppTimber REITs0.05%-0.05 ppSingle-Family Residential REITs0.05%+0.05 ppReal Estate Services0.14%+0.04 ppOther Specialized REITs0.04%-0.02 pp

3 · Sub-industry

Inside Office REITs

Office REITs0.07%-0.093 pp
Concentrated

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

View all contributions →
Office REITs · weight
0.07%
Industry change · 12M
-0.09 pp
Office REITs · contribution
-0.093 pp
Company participation
0%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

May 2023 · 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$19.6bn0.048%-0.043 pp-0.049 pp-29.2%No
BXP, Inc. →
BXP
United States$7.6bn0.019%-0.017 pp-0.044 pp-53.6%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.