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

Materials30.1%+27.83 ppEnergy2.0%-0.58 ppCommunication Services2.1%-0.59 ppUtilities2.1%-0.66 ppReal Estate1.6%-0.88 ppIndustrials7.7%-1.89 ppConsumer Staples4.9%-2.28 ppConsumer Discretionary8.4%-3.45 ppHealth Care8.2%-4.24 ppFinancials7.7%-4.88 ppInformation Technology25.3%-8.39 pp

2 · Industry

Inside Real Estate

Telecom Tower REITs0.21%-0.15 ppMulti-Family Residential REITs0.11%-0.11 ppData Center REITs0.21%-0.10 ppRetail REITs0.22%-0.10 ppReal Estate Services0.09%-0.08 ppIndustrial REITs0.18%-0.07 ppSelf-Storage REITs0.12%-0.07 ppHealth Care REITs0.27%-0.05 ppOffice REITs0.03%-0.04 ppHotel & Resort REITs0.06%-0.04 ppTimber REITs0.02%-0.02 ppSingle-Family Residential REITs0.02%-0.02 ppOther Specialized REITs0.04%-0.02 pp

3 · Sub-industry

Inside Office REITs

Office REITs0.03%-0.039 pp
Concentrated

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

View all contributions →
Office REITs · weight
0.03%
Industry change · 12M
-0.04 pp
Office REITs · contribution
-0.039 pp
Company participation
0%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Feb 2026 · 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$9.4bn0.013%-0.005 pp-0.027 pp-43.7%No
BXP, Inc. →
BXP
United States$9.1bn0.013%-0.010 pp-0.013 pp-14.8%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.