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
Pharmaceuticals2.37%+2.37 ppHealth Care Equipment1.67%+1.66 ppBiotechnology1.11%+1.10 ppLife Sciences Tools & Services0.99%+0.99 ppManaged Health Care0.94%+0.94 ppHealth Care Services0.42%+0.42 ppHealth Care Distributors0.14%+0.14 ppHealth Care Supplies0.14%+0.14 ppHealth Care Facilities0.12%+0.12 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Services
Health Care Services · weight
0.42%
Industry change · 12M
+0.42 pp
Health Care Services · contribution
+0.419 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Feb 2021 · 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 | $89.3bn | 0.179% | -0.198 pp | +0.178 pp | +18.8% | No |
| Cigna → CI | United States | $73.9bn | 0.148% | -0.173 pp | +0.147 pp | +14.8% | No |
| Labcorp → LH | United States | $20.1bn | 0.040% | -0.031 pp | +0.040 pp | +36.6% | No |
| Quest Diagnostics → DGX | United States | $15.4bn | 0.031% | -0.040 pp | +0.031 pp | +11.4% | No |
| DaVita → DVA | United States | $11.2bn | 0.022% | -0.030 pp | +0.022 pp | +31.6% | 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.