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
1 · Sector
Weight and 12M allocation change
2 · Industry
Inside Real Estate
Telecom Tower REITs0.00%-0.99 ppRetail REITs0.00%-0.55 ppMulti-Family Residential REITs0.00%-0.43 ppHealth Care REITs0.00%-0.41 ppData Center REITs0.00%-0.38 ppSelf-Storage REITs0.00%-0.32 ppIndustrial REITs0.00%-0.27 ppOffice REITs0.00%-0.21 ppTimber REITs0.00%-0.10 ppReal Estate Services0.00%-0.09 ppHotel & Resort REITs0.00%-0.08 ppOther Specialized REITs0.00%-0.05 ppSingle-Family Residential REITs0.00%+0.00 pp
3 · Sub-industry
Inside Health Care REITs
Health Care REITs · weight
0.00%
Industry change · 12M
-0.41 pp
Health Care REITs · contribution
-0.414 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
May 2020 · sorted by absolute contribution to 12-month change
| Company | Country | Market cap | Universe weight | 3M contribution | 12M contribution | 12M price return | Above 6M weight average |
|---|---|---|---|---|---|---|---|
| Welltower → WELL | United States | $21.2bn | 0.000% | -0.000 pp | -0.191 pp | -34.7% | No |
| Ventas → VTR | United States | $13.0bn | 0.000% | -0.000 pp | -0.134 pp | -42.1% | No |
| Healthpeak Properties → DOC | United States | $13.3bn | 0.000% | +0.000 pp | -0.088 pp | -18.6% | 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.