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
+0.22 pp
Pharmaceuticals · contribution
+0.221 pp
Company participation
100%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

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

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Lilly (Eli) →
LLY
United States$526.1bn1.677%+0.669 pp+0.652 pp+86.0%Yes
Pfizer →
PFE
United States$199.8bn0.637%+0.106 pp-0.272 pp-18.6%Yes
Johnson & Johnson →
JNJ
United States$420.2bn1.339%+0.344 pp-0.179 pp+3.1%Yes
Merck & Co. →
MRK
United States$276.5bn0.881%+0.189 pp+0.107 pp+31.3%Yes
Bristol Myers Squibb →
BMY
United States$128.8bn0.410%+0.076 pp-0.105 pp-5.5%Yes
Zoetis →
ZTS
United States$87.7bn0.279%+0.093 pp+0.017 pp+22.8%Yes
Viatris →
VTRS
United States$12.9bn0.041%+0.014 pp-0.000 pp+17.8%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.