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
Managed Health Care1.83%-0.37 ppBiotechnology2.35%-0.34 ppLife Sciences Tools & Services1.64%-0.32 ppHealth Care Equipment2.96%-0.17 ppHealth Care Distributors0.43%+0.05 ppPharmaceuticals5.03%+0.03 ppHealth Care Services0.70%-0.02 ppHealth Care Supplies0.20%+0.01 ppHealth Care Facilities0.24%-0.00 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Pharmaceuticals
Pharmaceuticals · weight
5.03%
Industry change · 12M
+0.03 pp
Pharmaceuticals · contribution
+0.033 pp
Company participation
43%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Mar 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 |
|---|---|---|---|---|---|---|---|
| Lilly (Eli) → LLY | United States | $739.2bn | 2.050% | +0.400 pp | +0.937 pp | +128.4% | Yes |
| Pfizer → PFE | United States | $156.7bn | 0.435% | -0.050 pp | -0.348 pp | -28.5% | No |
| Johnson & Johnson → JNJ | United States | $381.0bn | 1.057% | -0.068 pp | -0.320 pp | +5.2% | No |
| Bristol Myers Squibb → BMY | United States | $109.7bn | 0.304% | -0.007 pp | -0.192 pp | -18.7% | No |
| Zoetis → ZTS | United States | $77.5bn | 0.215% | -0.055 pp | -0.048 pp | +2.6% | No |
| Merck & Co. → MRK | United States | $334.2bn | 0.927% | +0.103 pp | +0.005 pp | +27.4% | Yes |
| Viatris → VTRS | United States | $14.2bn | 0.039% | +0.001 pp | +0.000 pp | +30.0% | 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.