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

Information Technology38.1%+4.07 ppUtilities2.8%-0.02 ppConsumer Discretionary12.0%-0.02 ppEnergy2.3%-0.32 ppMaterials2.1%-0.33 ppReal Estate2.1%-0.38 ppIndustrials9.4%-0.40 ppCommunication Services2.2%-0.48 ppHealth Care11.5%-0.58 ppConsumer Staples6.2%-0.72 ppFinancials11.4%-0.82 pp

2 · Industry

Inside Real Estate

Data Center REITs0.25%-0.10 ppHealth Care REITs0.38%+0.10 ppTelecom Tower REITs0.29%-0.09 ppSelf-Storage REITs0.15%-0.06 ppMulti-Family Residential REITs0.16%-0.06 ppRetail REITs0.28%-0.04 ppOffice REITs0.04%-0.03 ppOther Specialized REITs0.05%-0.03 ppTimber REITs0.03%-0.02 ppHotel & Resort REITs0.08%-0.02 ppReal Estate Services0.15%-0.02 ppSingle-Family Residential REITs0.03%-0.01 ppIndustrial REITs0.23%-0.00 pp

3 · Sub-industry

Inside Office REITs

Office REITs0.04%-0.030 pp
Concentrated

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

View all contributions →
Office REITs · weight
0.04%
Industry change · 12M
-0.03 pp
Office REITs · contribution
-0.030 pp
Company participation
0%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Nov 2025 · 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$9.3bn0.018%-0.011 pp-0.024 pp-48.2%No
BXP, Inc. →
BXP
United States$11.5bn0.023%-0.001 pp-0.006 pp-7.1%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.