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
2.77%
Industry change · 12M
-1.46 pp
Pharmaceuticals · contribution
-1.462 pp
Company participation
0%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Apr 2026 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Lilly (Eli) →
LLY
United States$880.2bn1.194%-0.682 pp-0.853 pp+4.7%No
Johnson & Johnson →
JNJ
United States$553.3bn0.751%-0.297 pp-0.152 pp+51.1%No
Merck & Co. →
MRK
United States$269.9bn0.366%-0.157 pp-0.151 pp+32.8%No
Pfizer →
PFE
United States$151.8bn0.206%-0.082 pp-0.126 pp+17.3%No
Zoetis →
ZTS
United States$48.5bn0.066%-0.039 pp-0.102 pp-25.3%No
Bristol Myers Squibb →
BMY
United States$123.7bn0.168%-0.047 pp-0.077 pp+26.7%No
Viatris →
VTRS
United States$17.2bn0.023%-0.006 pp-0.001 pp+85.7%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.