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 Technology26.9%+26.90 ppHealth Care15.8%+15.74 ppIndustrials12.3%+12.31 ppConsumer Discretionary7.4%+7.35 ppConsumer Staples7.1%+7.09 ppCommunication Services4.5%+4.49 ppMaterials3.3%+3.27 ppReal Estate3.1%+3.13 ppUtilities3.0%+2.97 ppEnergy2.4%+2.40 ppFinancials14.3%-85.64 pp

2 · Industry

Inside Real Estate

Telecom Tower REITs0.84%+0.84 ppData Center REITs0.40%+0.40 ppRetail REITs0.32%+0.32 ppIndustrial REITs0.31%+0.31 ppMulti-Family Residential REITs0.29%+0.29 ppSelf-Storage REITs0.26%+0.26 ppHealth Care REITs0.26%+0.26 ppOffice REITs0.16%+0.16 ppReal Estate Services0.10%+0.10 ppTimber REITs0.09%+0.09 ppOther Specialized REITs0.04%+0.04 ppHotel & Resort REITs0.04%+0.04 ppSingle-Family Residential REITs0.00%+0.00 pp

3 · Sub-industry

Inside Office REITs

Office REITs0.16%+0.158 pp
Concentrated

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

View all contributions →
Office REITs · weight
0.16%
Industry change · 12M
+0.16 pp
Office REITs · contribution
+0.158 pp
Company participation
100%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Jun 2021 · 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$26.8bn0.095%+0.051 pp+0.095 pp+15.0%Yes
BXP, Inc. →
BXP
United States$17.9bn0.063%+0.032 pp+0.063 pp+32.0%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.