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
Health Care Equipment1.41%-1.27 ppPharmaceuticals3.06%-1.12 ppManaged Health Care0.51%-1.01 ppBiotechnology1.45%-0.69 ppLife Sciences Tools & Services0.65%-0.44 ppHealth Care Services0.31%-0.22 ppHealth Care Distributors0.33%-0.10 ppHealth Care Facilities0.15%-0.05 ppHealth Care Supplies0.06%-0.04 ppHealth Care Technology0.02%-0.01 pp
3 · Sub-industry
Inside Pharmaceuticals
Pharmaceuticals · weight
3.06%
Industry change · 12M
-1.12 pp
Pharmaceuticals · contribution
-1.118 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Mar 2026 · 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 | $867.7bn | 1.264% | -0.726 pp | -0.596 pp | +12.2% | No |
| Bristol Myers Squibb → BMY | United States | $123.5bn | 0.180% | -0.035 pp | -0.114 pp | +4.5% | No |
| Pfizer → PFE | United States | $159.7bn | 0.233% | -0.045 pp | -0.108 pp | +18.9% | No |
| Merck & Co. → MRK | United States | $297.4bn | 0.433% | -0.079 pp | -0.105 pp | +38.9% | No |
| Zoetis → ZTS | United States | $49.9bn | 0.073% | -0.036 pp | -0.102 pp | -27.2% | No |
| Johnson & Johnson → JNJ | United States | $589.1bn | 0.858% | -0.119 pp | -0.090 pp | +51.5% | No |
| Viatris → VTRS | United States | $15.6bn | 0.023% | -0.005 pp | -0.002 pp | +62.3% | 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.