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 Technology39.9%+2.38 ppEnergy2.7%+0.38 ppHealth Care10.6%+0.37 ppMaterials2.0%-0.11 ppIndustrials9.9%-0.12 ppReal Estate2.1%-0.17 ppCommunication Services2.2%-0.23 ppUtilities2.5%-0.34 ppConsumer Discretionary11.3%-0.38 ppConsumer Staples5.9%-0.60 ppFinancials10.9%-1.19 pp

2 · Industry

Inside Real Estate

Telecom Tower REITs0.23%-0.12 ppReal Estate Services0.09%-0.09 ppHealth Care REITs0.40%+0.08 ppMulti-Family Residential REITs0.14%-0.03 ppIndustrial REITs0.24%+0.03 ppHotel & Resort REITs0.08%-0.02 ppOffice REITs0.04%-0.01 ppRetail REITs0.29%+0.01 ppSingle-Family Residential REITs0.03%-0.01 ppSelf-Storage REITs0.15%-0.01 ppTimber REITs0.03%-0.01 ppData Center REITs0.29%+0.00 ppOther Specialized REITs0.06%+0.00 pp

3 · Sub-industry

Inside Office REITs

Office REITs0.04%-0.015 pp
Concentrated

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

View all contributions →
Office REITs · weight
0.04%
Industry change · 12M
-0.01 pp
Office REITs · contribution
-0.015 pp
Company participation
100%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Jul 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$9.0bn0.016%+0.006 pp-0.012 pp-28.6%Yes
BXP, Inc. →
BXP
United States$11.2bn0.020%+0.007 pp-0.002 pp+11.9%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.