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
4.87%
Industry change · 12M
+1.93 pp
Pharmaceuticals · contribution
+1.928 pp
Company participation
71%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Jan 2022 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Pfizer →
PFE
United States$295.7bn0.995%+0.176 pp+0.517 pp+52.0%Yes
Johnson & Johnson →
JNJ
United States$453.6bn1.525%+0.093 pp+0.497 pp+8.3%Yes
Lilly (Eli) →
LLY
United States$234.7bn0.789%-0.025 pp+0.313 pp+19.8%No
Merck & Co. →
MRK
United States$205.8bn0.692%-0.052 pp+0.247 pp+14.8%Yes
Bristol Myers Squibb →
BMY
United States$144.0bn0.484%+0.051 pp+0.152 pp+9.1%Yes
Zoetis →
ZTS
United States$94.5bn0.318%-0.024 pp+0.142 pp+30.2%No
Viatris →
VTRS
United States$18.1bn0.061%+0.007 pp+0.061 pp-9.8%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.