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
Biotechnology2.84%-0.58 ppPharmaceuticals6.10%+0.56 ppHealth Care Equipment3.33%+0.45 ppHealth Care Services1.01%+0.35 ppLife Sciences Tools & Services1.82%+0.32 ppManaged Health Care2.16%+0.22 ppHealth Care Distributors0.39%-0.10 ppHealth Care Facilities0.28%+0.07 ppHealth Care Supplies0.14%-0.00 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Pharmaceuticals
Pharmaceuticals · weight
6.10%
Industry change · 12M
+0.56 pp
Pharmaceuticals · contribution
+0.560 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Feb 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 | $200.2bn | 1.161% | +0.506 pp | +0.325 pp | +54.5% | Yes |
| Lilly (Eli) → LLY | United States | $130.8bn | 0.758% | +0.340 pp | +0.252 pp | +67.8% | Yes |
| Bristol Myers Squibb → BMY | United States | $84.3bn | 0.489% | +0.199 pp | -0.159 pp | -19.8% | Yes |
| Pfizer → PFE | United States | $228.3bn | 1.324% | +0.481 pp | +0.095 pp | +23.6% | Yes |
| Zoetis → ZTS | United States | $45.1bn | 0.261% | +0.112 pp | +0.026 pp | +17.3% | Yes |
| Johnson & Johnson → JNJ | United States | $363.9bn | 2.109% | +0.800 pp | +0.021 pp | +8.1% | 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.