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
Pharmaceuticals3.86%-1.00 ppManaged Health Care1.59%-0.66 ppBiotechnology1.84%-0.45 ppLife Sciences Tools & Services1.16%-0.43 ppHealth Care Equipment2.47%-0.37 ppHealth Care Services0.49%-0.16 ppHealth Care Distributors0.37%-0.06 ppHealth Care Technology0.03%+0.03 ppHealth Care Facilities0.18%-0.03 ppHealth Care Supplies0.14%-0.01 pp
3 · Sub-industry
Inside Health Care Services
Health Care Services · weight
0.49%
Industry change · 12M
-0.16 pp
Health Care Services · contribution
-0.159 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Nov 2024 · 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 | $75.3bn | 0.166% | -0.008 pp | -0.106 pp | -8.2% | Yes |
| Cigna → CI | United States | $94.0bn | 0.207% | -0.037 pp | -0.032 pp | +30.7% | Yes |
| Labcorp → LH | United States | $20.2bn | 0.045% | -0.002 pp | -0.013 pp | +12.6% | Yes |
| Quest Diagnostics → DGX | United States | $18.2bn | 0.040% | -0.002 pp | -0.008 pp | +21.1% | Yes |
| DaVita → DVA | United States | $13.6bn | 0.030% | -0.001 pp | +0.001 pp | +63.8% | Yes |
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.