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
Biotechnology2.27%-0.85 ppPharmaceuticals5.25%-0.53 ppHealth Care Services0.93%+0.30 ppHealth Care Equipment3.39%+0.28 ppManaged Health Care1.99%-0.14 ppLife Sciences Tools & Services1.75%+0.11 ppHealth Care Supplies0.11%-0.07 ppHealth Care Distributors0.36%-0.03 ppHealth Care Facilities0.24%-0.01 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Pharmaceuticals
Pharmaceuticals · weight
5.25%
Industry change · 12M
-0.53 pp
Pharmaceuticals · contribution
-0.528 pp
Company participation
17%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jul 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 | $343.7bn | 1.829% | -0.266 pp | -0.244 pp | +0.9% | No |
| Pfizer → PFE | United States | $204.9bn | 1.090% | -0.102 pp | -0.202 pp | +0.6% | No |
| Bristol Myers Squibb → BMY | United States | $72.6bn | 0.387% | -0.037 pp | -0.173 pp | -22.0% | No |
| Merck & Co. → MRK | United States | $203.9bn | 1.085% | +0.005 pp | +0.099 pp | +29.5% | No |
| Lilly (Eli) → LLY | United States | $105.8bn | 0.563% | -0.112 pp | -0.056 pp | +12.7% | No |
| Zoetis → ZTS | United States | $55.0bn | 0.293% | +0.021 pp | +0.049 pp | +33.7% | 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.