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 Care2.28%-0.26 ppPharmaceuticals5.22%-0.24 ppHealth Care Services0.71%-0.20 ppLife Sciences Tools & Services1.85%-0.19 ppHealth Care Equipment3.34%+0.18 ppBiotechnology2.61%+0.11 ppHealth Care Facilities0.27%+0.03 ppHealth Care Distributors0.39%+0.01 ppHealth Care Supplies0.19%+0.01 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Pharmaceuticals
Pharmaceuticals · weight
5.22%
Industry change · 12M
-0.24 pp
Pharmaceuticals · contribution
-0.236 pp
Company participation
43%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Apr 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 |
|---|---|---|---|---|---|---|---|
| Johnson & Johnson → JNJ | United States | $425.4bn | 1.437% | -0.025 pp | -0.280 pp | -6.8% | No |
| Lilly (Eli) → LLY | United States | $375.8bn | 1.269% | +0.150 pp | +0.266 pp | +37.2% | Yes |
| Pfizer → PFE | United States | $218.5bn | 0.738% | -0.110 pp | -0.260 pp | -18.0% | No |
| Merck & Co. → MRK | United States | $293.1bn | 0.990% | +0.058 pp | +0.179 pp | +34.1% | Yes |
| Bristol Myers Squibb → BMY | United States | $140.3bn | 0.474% | -0.055 pp | -0.106 pp | -8.5% | No |
| Zoetis → ZTS | United States | $81.5bn | 0.275% | +0.011 pp | -0.027 pp | +0.0% | Yes |
| Viatris → VTRS | United States | $11.2bn | 0.038% | -0.013 pp | -0.007 pp | -5.6% | 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.