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 Technology29.1%+12.97 ppHealth Care16.4%+6.67 ppFinancials13.7%+6.01 ppIndustrials10.0%+3.06 ppConsumer Staples7.4%+3.04 ppEnergy2.8%+1.70 ppReal Estate3.2%+1.49 ppUtilities3.1%+1.42 ppMaterials3.2%+1.41 ppCommunication Services3.7%+0.84 ppConsumer Discretionary7.5%-38.63 pp

2 · Industry

Inside Real Estate

Telecom Tower REITs0.77%+0.29 ppIndustrial REITs0.39%+0.21 ppRetail REITs0.36%+0.20 ppSelf-Storage REITs0.30%+0.17 ppMulti-Family Residential REITs0.32%+0.17 ppHealth Care REITs0.26%+0.12 ppData Center REITs0.36%+0.11 ppOffice REITs0.16%+0.08 ppReal Estate Services0.11%+0.07 ppTimber REITs0.10%+0.05 ppOther Specialized REITs0.04%+0.02 ppHotel & Resort REITs0.04%+0.02 ppSingle-Family Residential REITs0.00%+0.00 pp

3 · Sub-industry

Inside Office REITs

Office REITs0.16%+0.076 pp
Concentrated

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

View all contributions →
Office REITs · weight
0.16%
Industry change · 12M
+0.08 pp
Office REITs · contribution
+0.076 pp
Company participation
50%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Jan 2022 · 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$31.2bn0.105%-0.001 pp+0.051 pp+19.4%No
BXP, Inc. →
BXP
United States$17.5bn0.059%-0.000 pp+0.025 pp+27.2%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.