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
Pharmaceuticals2.77%-1.46 ppHealth Care Equipment1.24%-1.46 ppBiotechnology1.31%-0.76 ppManaged Health Care0.64%-0.64 ppLife Sciences Tools & Services0.59%-0.41 ppHealth Care Services0.32%-0.23 ppHealth Care Distributors0.29%-0.16 ppHealth Care Facilities0.13%-0.08 ppHealth Care Supplies0.06%-0.04 ppHealth Care Technology0.02%-0.01 pp
3 · Sub-industry
Inside Pharmaceuticals
Pharmaceuticals · weight
2.77%
Industry change · 12M
-1.46 pp
Pharmaceuticals · contribution
-1.462 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Apr 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 | $880.2bn | 1.194% | -0.682 pp | -0.853 pp | +4.7% | No |
| Johnson & Johnson → JNJ | United States | $553.3bn | 0.751% | -0.297 pp | -0.152 pp | +51.1% | No |
| Merck & Co. → MRK | United States | $269.9bn | 0.366% | -0.157 pp | -0.151 pp | +32.8% | No |
| Pfizer → PFE | United States | $151.8bn | 0.206% | -0.082 pp | -0.126 pp | +17.3% | No |
| Zoetis → ZTS | United States | $48.5bn | 0.066% | -0.039 pp | -0.102 pp | -25.3% | No |
| Bristol Myers Squibb → BMY | United States | $123.7bn | 0.168% | -0.047 pp | -0.077 pp | +26.7% | No |
| Viatris → VTRS | United States | $17.2bn | 0.023% | -0.006 pp | -0.001 pp | +85.7% | 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.