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 Care2.23%-0.48 ppPharmaceuticals5.26%-0.36 ppLife Sciences Tools & Services1.70%-0.33 ppHealth Care Services0.72%-0.26 ppBiotechnology2.53%-0.12 ppHealth Care Supplies0.18%+0.04 ppHealth Care Equipment2.91%-0.03 ppHealth Care Facilities0.22%+0.02 ppHealth Care Distributors0.42%+0.01 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Pharmaceuticals
Pharmaceuticals · weight
5.26%
Industry change · 12M
-0.36 pp
Pharmaceuticals · contribution
-0.363 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Sep 2023 · 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 | $509.9bn | 1.703% | +0.673 pp | +0.495 pp | +67.9% | Yes |
| Pfizer → PFE | United States | $187.3bn | 0.625% | +0.147 pp | -0.340 pp | -21.1% | Yes |
| Johnson & Johnson → JNJ | United States | $404.8bn | 1.352% | +0.357 pp | -0.336 pp | -1.9% | Yes |
| Bristol Myers Squibb → BMY | United States | $121.3bn | 0.405% | +0.094 pp | -0.192 pp | -15.7% | Yes |
| Merck & Co. → MRK | United States | $261.2bn | 0.872% | +0.195 pp | +0.015 pp | +22.8% | Yes |
| Zoetis → ZTS | United States | $80.1bn | 0.267% | +0.083 pp | -0.005 pp | +18.4% | Yes |
| Viatris → VTRS | United States | $11.8bn | 0.039% | +0.012 pp | -0.001 pp | +21.1% | 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.