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 Discretionary46.1%+39.16 ppMaterials1.8%-1.34 ppReal Estate1.7%-1.86 ppEnergy1.1%-2.06 ppUtilities1.7%-2.24 ppCommunication Services2.8%-2.38 ppInformation Technology16.1%-3.01 ppConsumer Staples4.4%-4.39 ppIndustrials6.9%-6.49 ppHealth Care9.7%-6.87 ppFinancials7.7%-8.52 pp

2 · Industry

Inside Real Estate

Telecom Tower REITs0.48%-0.47 ppRetail REITs0.16%-0.28 ppMulti-Family Residential REITs0.16%-0.24 ppHealth Care REITs0.14%-0.22 ppSelf-Storage REITs0.13%-0.13 ppData Center REITs0.25%-0.12 ppOffice REITs0.09%-0.11 ppIndustrial REITs0.18%-0.11 ppReal Estate Services0.05%-0.05 ppTimber REITs0.06%-0.05 ppHotel & Resort REITs0.02%-0.03 ppOther Specialized REITs0.02%-0.02 ppSingle-Family Residential REITs0.00%+0.00 pp

3 · Sub-industry

Inside Office REITs

Office REITs0.09%-0.114 pp
Concentrated

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

View all contributions →
Office REITs · weight
0.09%
Industry change · 12M
-0.11 pp
Office REITs · contribution
-0.114 pp
Company participation
0%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Jan 2021 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
BXP, Inc. →
BXP
United States$14.2bn0.034%-0.019 pp-0.075 pp-33.4%No
Alexandria Real Estate Equities →
ARE
United States$22.6bn0.054%-0.043 pp-0.039 pp+5.2%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.