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 Equipment3.07%+0.24 ppManaged Health Care2.06%+0.10 ppPharmaceuticals5.41%-0.09 ppHealth Care Distributors0.43%-0.08 ppHealth Care Services0.65%-0.06 ppHealth Care Supplies0.18%+0.04 ppLife Sciences Tools & Services1.54%+0.03 ppHealth Care Facilities0.22%+0.01 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Pharmaceuticals
Pharmaceuticals · weight
5.41%
Industry change · 12M
-0.09 pp
Pharmaceuticals · contribution
-0.089 pp
Company participation
50%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
May 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 |
|---|---|---|---|---|---|---|---|
| Johnson & Johnson → JNJ | United States | $320.8bn | 1.947% | -0.142 pp | -0.171 pp | -12.2% | No |
| Bristol Myers Squibb → BMY | United States | $86.0bn | 0.522% | -0.126 pp | -0.063 pp | -15.4% | No |
| Merck & Co. → MRK | United States | $152.8bn | 0.927% | +0.091 pp | +0.049 pp | +1.4% | Yes |
| Lilly (Eli) → LLY | United States | $92.3bn | 0.560% | +0.054 pp | +0.049 pp | +5.9% | Yes |
| Zoetis → ZTS | United States | $40.5bn | 0.246% | +0.011 pp | +0.032 pp | +9.2% | Yes |
| Pfizer → PFE | United States | $199.4bn | 1.210% | -0.019 pp | +0.015 pp | -1.1% | 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.