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 Technology29.7%+5.20 ppConsumer Discretionary11.9%+0.62 ppIndustrials10.2%+0.09 ppCommunication Services2.9%-0.50 ppReal Estate2.8%-0.52 ppMaterials2.7%-0.53 ppUtilities2.7%-0.66 ppConsumer Staples6.7%-0.73 ppEnergy3.1%-0.73 ppFinancials11.7%-0.96 ppHealth Care15.6%-1.28 pp

2 · Industry

Inside Real Estate

Telecom Tower REITs0.48%-0.20 ppMulti-Family Residential REITs0.22%-0.07 ppIndustrial REITs0.35%-0.06 ppRetail REITs0.33%-0.06 ppOffice REITs0.09%-0.04 ppHotel & Resort REITs0.13%-0.03 ppReal Estate Services0.18%-0.02 ppHealth Care REITs0.22%-0.02 ppSelf-Storage REITs0.24%-0.02 ppTimber REITs0.07%-0.02 ppData Center REITs0.36%+0.01 ppSingle-Family Residential REITs0.06%-0.01 ppOther Specialized REITs0.06%+0.00 pp

3 · Sub-industry

Inside Office REITs

Office REITs0.09%-0.041 pp
Concentrated

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

View all contributions →
Office REITs · weight
0.09%
Industry change · 12M
-0.04 pp
Office REITs · contribution
-0.041 pp
Company participation
100%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Jan 2024 · 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$21.2bn0.063%+0.008 pp-0.032 pp-21.4%Yes
BXP, Inc. →
BXP
United States$10.4bn0.031%+0.002 pp-0.009 pp-4.6%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.