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
Pharmaceuticals5.24%+1.87 ppHealth Care Equipment3.42%+1.56 ppLife Sciences Tools & Services1.79%+0.84 ppBiotechnology2.32%+0.57 ppHealth Care Services0.94%+0.55 ppManaged Health Care1.70%+0.46 ppHealth Care Distributors0.35%+0.12 ppHealth Care Facilities0.22%+0.06 ppHealth Care Supplies0.10%-0.01 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Pharmaceuticals
Pharmaceuticals · weight
5.24%
Industry change · 12M
+1.87 pp
Pharmaceuticals · contribution
+1.871 pp
Company participation
33%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Sep 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 |
|---|---|---|---|---|---|---|---|
| Johnson & Johnson → JNJ | United States | $341.5bn | 1.814% | -0.180 pp | +0.633 pp | -3.8% | No |
| Merck & Co. → MRK | United States | $205.7bn | 1.092% | -0.018 pp | +0.519 pp | +21.9% | No |
| Pfizer → PFE | United States | $188.5bn | 1.001% | -0.230 pp | +0.221 pp | -15.6% | No |
| Lilly (Eli) → LLY | United States | $108.0bn | 0.573% | -0.006 pp | +0.206 pp | +6.5% | No |
| Zoetis → ZTS | United States | $59.5bn | 0.316% | +0.023 pp | +0.175 pp | +37.0% | Yes |
| Bristol Myers Squibb → BMY | United States | $82.9bn | 0.441% | +0.041 pp | +0.118 pp | -15.7% | 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.