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›Other Specialized REITs›Other Specialized REITs

1 · Sector

Weight and 12M allocation change

Communication Services4.9%+1.57 ppMaterials2.8%+0.74 ppUtilities3.7%+0.31 ppInformation Technology17.7%+0.29 ppReal Estate3.7%+0.14 ppConsumer Staples8.8%+0.03 ppHealth Care16.9%-0.00 ppConsumer Discretionary7.0%-0.03 ppIndustrials14.5%-0.19 ppEnergy3.9%-1.21 ppFinancials16.1%-1.65 pp

2 · Industry

Inside Real Estate

Telecom Tower REITs0.92%+0.14 ppTimber REITs0.11%-0.06 ppIndustrial REITs0.27%+0.06 ppHealth Care REITs0.39%+0.05 ppRetail REITs0.51%-0.04 ppMulti-Family Residential REITs0.40%+0.03 ppHotel & Resort REITs0.07%-0.02 ppSelf-Storage REITs0.30%-0.02 ppData Center REITs0.36%+0.01 ppOther Specialized REITs0.05%-0.01 ppReal Estate Services0.09%-0.01 ppOffice REITs0.19%-0.00 ppSingle-Family Residential REITs0.00%+0.00 pp

3 · Sub-industry

Inside Other Specialized REITs

Other Specialized REITs0.05%-0.012 pp
Concentrated

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

View all contributions →
Other Specialized REITs · weight
0.05%
Industry change · 12M
-0.01 pp
Other Specialized REITs · contribution
-0.012 pp
Company participation
0%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Jun 2019 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Iron Mountain →
IRM
United States$9.0bn0.048%-0.010 pp-0.012 pp-4.1%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.