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
5.26%
Industry change · 12M
-0.36 pp
Pharmaceuticals · contribution
-0.363 pp
Company participation
100%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Sep 2023 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Lilly (Eli) →
LLY
United States$509.9bn1.703%+0.673 pp+0.495 pp+67.9%Yes
Pfizer →
PFE
United States$187.3bn0.625%+0.147 pp-0.340 pp-21.1%Yes
Johnson & Johnson →
JNJ
United States$404.8bn1.352%+0.357 pp-0.336 pp-1.9%Yes
Bristol Myers Squibb →
BMY
United States$121.3bn0.405%+0.094 pp-0.192 pp-15.7%Yes
Merck & Co. →
MRK
United States$261.2bn0.872%+0.195 pp+0.015 pp+22.8%Yes
Zoetis →
ZTS
United States$80.1bn0.267%+0.083 pp-0.005 pp+18.4%Yes
Viatris →
VTRS
United States$11.8bn0.039%+0.012 pp-0.001 pp+21.1%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.