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
4.10%
Industry change · 12M
+0.75 pp
Pharmaceuticals · contribution
+0.749 pp
Company participation
86%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

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

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Lilly (Eli) →
LLY
United States$1081.9bn1.889%+0.694 pp+0.409 pp+56.3%Yes
Johnson & Johnson →
JNJ
United States$617.8bn1.078%+0.328 pp+0.242 pp+59.5%Yes
Merck & Co. →
MRK
United States$321.6bn0.561%+0.195 pp+0.148 pp+72.2%Yes
Zoetis →
ZTS
United States$32.4bn0.057%-0.009 pp-0.080 pp-46.0%No
Bristol Myers Squibb →
BMY
United States$133.4bn0.233%+0.065 pp+0.047 pp+58.0%Yes
Pfizer →
PFE
United States$142.5bn0.249%+0.043 pp-0.030 pp+14.9%Yes
Viatris →
VTRS
United States$20.4bn0.036%+0.012 pp+0.014 pp+108.8%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.