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
Pharmaceuticals6.10%+0.50 ppBiotechnology2.70%-0.49 ppHealth Care Equipment3.38%+0.45 ppLife Sciences Tools & Services1.87%+0.34 ppHealth Care Services0.95%+0.32 ppManaged Health Care2.12%+0.22 ppHealth Care Distributors0.36%-0.11 ppHealth Care Facilities0.26%+0.05 ppHealth Care Supplies0.15%+0.01 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Pharmaceuticals
Pharmaceuticals · weight
6.10%
Industry change · 12M
+0.50 pp
Pharmaceuticals · contribution
+0.496 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Mar 2019 · 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 |
|---|---|---|---|---|---|---|---|
| Merck & Co. → MRK | United States | $204.8bn | 1.177% | +0.499 pp | +0.317 pp | +57.1% | Yes |
| Lilly (Eli) → LLY | United States | $134.4bn | 0.772% | +0.334 pp | +0.252 pp | +71.6% | Yes |
| Bristol Myers Squibb → BMY | United States | $77.9bn | 0.447% | +0.144 pp | -0.186 pp | -22.4% | Yes |
| Pfizer → PFE | United States | $223.7bn | 1.285% | +0.429 pp | +0.055 pp | +23.9% | Yes |
| Johnson & Johnson → JNJ | United States | $372.3bn | 2.139% | +0.901 pp | +0.029 pp | +12.1% | Yes |
| Zoetis → ZTS | United States | $48.2bn | 0.277% | +0.130 pp | +0.028 pp | +21.3% | 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.