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
Pharmaceuticals5.35%+2.06 ppHealth Care Equipment3.55%+1.75 ppLife Sciences Tools & Services1.79%+0.86 ppManaged Health Care1.88%+0.63 ppBiotechnology2.36%+0.60 ppHealth Care Services0.95%+0.57 ppHealth Care Distributors0.35%+0.12 ppHealth Care Facilities0.22%+0.07 ppHealth Care Supplies0.10%-0.01 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Services
Health Care Services · weight
0.95%
Industry change · 12M
+0.57 pp
Health Care Services · contribution
+0.566 pp
Company participation
40%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Aug 2019 · 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 |
|---|---|---|---|---|---|---|---|
| Cigna → CI | United States | $58.1bn | 0.316% | -0.011 pp | +0.316 pp | -18.2% | No |
| CVS Health → CVS | United States | $79.2bn | 0.431% | +0.035 pp | +0.184 pp | -16.3% | Yes |
| Labcorp → LH | United States | $14.1bn | 0.076% | -0.004 pp | +0.028 pp | -3.1% | No |
| Quest Diagnostics → DGX | United States | $13.8bn | 0.075% | -0.000 pp | +0.026 pp | -4.9% | Yes |
| DaVita → DVA | United States | $9.0bn | 0.049% | +0.007 pp | +0.012 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.