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

Consumer Discretionary47.6%+40.56 ppMaterials1.4%-0.73 ppUtilities2.1%-1.09 ppReal Estate2.0%-1.22 ppCommunication Services2.1%-1.38 ppEnergy2.4%-2.26 ppConsumer Staples5.2%-4.20 ppHealth Care10.5%-6.24 ppInformation Technology9.7%-6.37 ppIndustrials7.4%-8.17 ppFinancials9.6%-8.90 pp

2 · Industry

Inside Real Estate

Telecom Tower REITs0.46%-0.28 ppRetail REITs0.33%-0.17 ppData Center REITs0.18%-0.15 ppMulti-Family Residential REITs0.22%-0.11 ppTimber REITs0.07%-0.10 ppHealth Care REITs0.21%-0.09 ppSelf-Storage REITs0.16%-0.09 ppOffice REITs0.11%-0.07 ppIndustrial REITs0.14%-0.06 ppHotel & Resort REITs0.05%-0.04 ppReal Estate Services0.05%-0.04 ppOther Specialized REITs0.03%-0.02 ppSingle-Family Residential REITs0.00%+0.00 pp

3 · Sub-industry

Inside Office REITs

Office REITs0.11%-0.072 pp
Concentrated

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

View all contributions →
Office REITs · weight
0.11%
Industry change · 12M
-0.07 pp
Office REITs · contribution
-0.072 pp
Company participation
0%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Nov 2018 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
BXP, Inc. →
BXP
United States$20.3bn0.067%+0.002 pp-0.042 pp+8.3%No
Alexandria Real Estate Equities →
ARE
United States$13.4bn0.044%+0.001 pp-0.030 pp-1.8%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.