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
Pharmaceuticals5.11%-0.44 ppLife Sciences Tools & Services1.52%-0.39 ppManaged Health Care2.39%-0.34 ppBiotechnology2.47%-0.26 ppHealth Care Services0.74%-0.19 ppHealth Care Equipment2.79%-0.11 ppHealth Care Distributors0.44%+0.02 ppHealth Care Facilities0.21%-0.02 ppHealth Care Supplies0.14%+0.01 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Pharmaceuticals
Pharmaceuticals · weight
5.11%
Industry change · 12M
-0.44 pp
Pharmaceuticals · contribution
-0.438 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Oct 2023 · 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 |
|---|---|---|---|---|---|---|---|
| Lilly (Eli) → LLY | United States | $525.8bn | 1.788% | +0.847 pp | +0.567 pp | +54.6% | Yes |
| Johnson & Johnson → JNJ | United States | $357.1bn | 1.214% | +0.265 pp | -0.400 pp | -12.3% | Yes |
| Pfizer → PFE | United States | $172.5bn | 0.587% | +0.143 pp | -0.341 pp | -31.7% | Yes |
| Bristol Myers Squibb → BMY | United States | $104.9bn | 0.356% | +0.073 pp | -0.228 pp | -31.1% | Yes |
| Merck & Co. → MRK | United States | $260.6bn | 0.886% | +0.296 pp | -0.024 pp | +4.3% | Yes |
| Viatris → VTRS | United States | $10.7bn | 0.036% | +0.009 pp | -0.007 pp | -8.0% | Yes |
| Zoetis → ZTS | United States | $72.3bn | 0.246% | +0.056 pp | -0.005 pp | +5.1% | 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.