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 Discretionary48.1%+41.00 ppMaterials1.1%-1.04 ppUtilities1.9%-1.28 ppReal Estate1.8%-1.40 ppCommunication Services1.9%-1.53 ppEnergy2.7%-2.04 ppConsumer Staples4.8%-4.56 ppInformation Technology10.0%-6.01 ppHealth Care10.1%-6.67 ppIndustrials8.1%-7.53 ppFinancials9.5%-8.94 pp

2 · Industry

Inside Real Estate

Telecom Tower REITs0.41%-0.33 ppRetail REITs0.30%-0.20 ppData Center REITs0.18%-0.15 ppMulti-Family Residential REITs0.20%-0.13 ppHealth Care REITs0.18%-0.13 ppSelf-Storage REITs0.15%-0.11 ppTimber REITs0.08%-0.08 ppIndustrial REITs0.12%-0.08 ppOffice REITs0.10%-0.08 ppReal Estate Services0.05%-0.04 ppHotel & Resort REITs0.05%-0.04 ppOther Specialized REITs0.03%-0.02 ppSingle-Family Residential REITs0.00%+0.00 pp

3 · Sub-industry

Inside Office REITs

Office REITs0.10%-0.081 pp
Concentrated

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

View all contributions →
Office REITs · weight
0.10%
Industry change · 12M
-0.08 pp
Office REITs · contribution
-0.081 pp
Company participation
0%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

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

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
BXP, Inc. →
BXP
United States$19.0bn0.061%-0.057 pp-0.048 pp+1.6%No
Alexandria Real Estate Equities →
ARE
United States$13.3bn0.042%-0.036 pp-0.033 pp-0.8%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.