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
Universe›Health Care›Pharmaceuticals›Pharmaceuticals
Pharmaceuticals · weight
4.74%
Industry change · 12M
+4.73 pp
Pharmaceuticals · contribution
+4.734 pp
Company participation
100%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Aug 2021 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Johnson & Johnson →
JNJ
United States$455.8bn1.524%-0.073 pp+1.522 pp+15.7%Yes
Pfizer →
PFE
United States$258.3bn0.864%+0.087 pp+0.863 pp+33.7%Yes
Lilly (Eli) →
LLY
United States$247.1bn0.826%+0.140 pp+0.825 pp+77.0%Yes
Merck & Co. →
MRK
United States$193.1bn0.646%-0.011 pp+0.645 pp-3.1%Yes
Bristol Myers Squibb →
BMY
United States$148.6bn0.497%-0.029 pp+0.496 pp+10.8%Yes
Zoetis →
ZTS
United States$97.0bn0.324%+0.024 pp+0.324 pp+28.5%Yes
Viatris →
VTRS
United States$17.7bn0.059%-0.007 pp+0.059 pp-9.4%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.