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
Biotechnology3.08%-0.30 ppHealth Care Equipment2.98%+0.15 ppManaged Health Care2.08%+0.13 ppPharmaceuticals5.60%+0.10 ppLife Sciences Tools & Services1.54%+0.03 ppHealth Care Services0.68%-0.02 ppHealth Care Distributors0.50%-0.01 ppHealth Care Supplies0.14%+0.00 ppHealth Care Facilities0.21%+0.00 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Pharmaceuticals
Pharmaceuticals · weight
5.60%
Industry change · 12M
+0.10 pp
Pharmaceuticals · contribution
+0.100 pp
Company participation
67%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Apr 2018 · 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 |
|---|---|---|---|---|---|---|---|
| Pfizer → PFE | United States | $206.8bn | 1.271% | +0.076 pp | +0.076 pp | -0.2% | Yes |
| Bristol Myers Squibb → BMY | United States | $85.2bn | 0.524% | -0.061 pp | -0.061 pp | -16.2% | No |
| Merck & Co. → MRK | United States | $151.5bn | 0.931% | +0.052 pp | +0.052 pp | +0.2% | Yes |
| Zoetis → ZTS | United States | $40.5bn | 0.249% | +0.036 pp | +0.036 pp | +9.0% | Yes |
| Johnson & Johnson → JNJ | United States | $339.4bn | 2.085% | -0.032 pp | -0.032 pp | -7.9% | No |
| Lilly (Eli) → LLY | United States | $88.0bn | 0.541% | +0.029 pp | +0.029 pp | +0.3% | 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.