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 Equipment1.80%-0.36 ppPharmaceuticals3.22%-0.20 ppManaged Health Care1.32%-0.15 ppLife Sciences Tools & Services1.07%-0.13 ppHealth Care Services0.40%-0.10 ppHealth Care Supplies0.10%-0.03 ppBiotechnology1.65%+0.03 ppHealth Care Technology0.02%+0.02 ppHealth Care Distributors0.29%+0.01 ppHealth Care Facilities0.17%+0.00 pp
3 · Sub-industry
Inside Biotechnology
Biotechnology · weight
1.65%
Industry change · 12M
+0.03 pp
Biotechnology · contribution
+0.028 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jul 2024 · 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 |
|---|---|---|---|---|---|---|---|
| Amgen → AMGN | United States | $178.3bn | 0.320% | -0.106 pp | +0.047 pp | +46.4% | No |
| Gilead Sciences → GILD | United States | $94.8bn | 0.170% | -0.065 pp | -0.037 pp | +4.1% | No |
| Vertex Pharmaceuticals → VRTX | United States | $127.9bn | 0.229% | -0.065 pp | +0.031 pp | +40.7% | No |
| Regeneron Pharmaceuticals → REGN | United States | $101.4bn | 0.182% | -0.061 pp | +0.030 pp | +45.5% | No |
| Biogen → BIIB | United States | $31.0bn | 0.056% | -0.035 pp | -0.030 pp | -21.1% | No |
| Moderna → MRNA | United States | $45.7bn | 0.082% | -0.040 pp | -0.016 pp | +1.3% | No |
| AbbVie → ABBV | United States | $327.3bn | 0.587% | -0.246 pp | +0.011 pp | +28.7% | No |
| Incyte → INCY | United States | $12.5bn | 0.022% | -0.011 pp | -0.009 pp | +2.1% | 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.