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
Health Care Equipment2.54%+0.61 ppManaged Health Care0.92%-0.34 ppBiotechnology1.77%+0.14 ppHealth Care Distributors0.43%+0.14 ppLife Sciences Tools & Services0.90%-0.12 ppHealth Care Services0.49%+0.09 ppHealth Care Facilities0.20%+0.04 ppHealth Care Supplies0.09%-0.02 ppHealth Care Technology0.03%+0.01 ppPharmaceuticals3.49%-0.00 pp
3 · Sub-industry
Inside Biotechnology
Biotechnology · weight
1.77%
Industry change · 12M
+0.14 pp
Biotechnology · contribution
+0.144 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jun 2025 · 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 |
|---|---|---|---|---|---|---|---|
| AbbVie → ABBV | United States | $327.9bn | 0.707% | -0.171 pp | +0.139 pp | +12.2% | No |
| Gilead Sciences → GILD | United States | $137.9bn | 0.297% | -0.034 pp | +0.137 pp | +66.8% | No |
| Regeneron Pharmaceuticals → REGN | United States | $49.3bn | 0.106% | -0.035 pp | -0.079 pp | -49.9% | No |
| Moderna → MRNA | United States | $10.7bn | 0.023% | -0.003 pp | -0.062 pp | -76.8% | No |
| Biogen → BIIB | United States | $18.4bn | 0.040% | -0.008 pp | -0.024 pp | -45.8% | No |
| Vertex Pharmaceuticals → VRTX | United States | $114.3bn | 0.247% | -0.049 pp | +0.020 pp | -5.0% | No |
| Amgen → AMGN | United States | $150.1bn | 0.324% | -0.074 pp | +0.010 pp | -7.8% | No |
| Incyte → INCY | United States | $13.2bn | 0.028% | +0.001 pp | +0.003 pp | +12.3% | 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.