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 Health Care
Pharmaceuticals5.63%+1.00 ppManaged Health Care2.70%+0.79 ppLife Sciences Tools & Services2.03%-0.24 ppHealth Care Supplies0.15%-0.16 ppHealth Care Services0.97%+0.15 ppHealth Care Equipment2.94%-0.15 ppBiotechnology2.65%+0.14 ppHealth Care Distributors0.41%+0.13 ppHealth Care Facilities0.21%-0.07 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Services
Health Care Services · weight
0.97%
Industry change · 12M
+0.15 pp
Health Care Services · contribution
+0.154 pp
Company participation
40%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Sep 2022 · 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 |
|---|---|---|---|---|---|---|---|
| CVS Health → CVS | United States | $125.2bn | 0.492% | +0.020 pp | +0.099 pp | +14.9% | Yes |
| Cigna → CI | United States | $84.7bn | 0.333% | +0.008 pp | +0.094 pp | +41.1% | Yes |
| Labcorp → LH | United States | $15.9bn | 0.063% | -0.010 pp | -0.019 pp | -26.8% | No |
| DaVita → DVA | United States | $7.6bn | 0.030% | +0.000 pp | -0.013 pp | -28.8% | No |
| Quest Diagnostics → DGX | United States | $14.3bn | 0.056% | -0.004 pp | -0.006 pp | -14.0% | 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.