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
5.03%
Industry change · 12M
-0.19 pp
Pharmaceuticals · contribution
-0.186 pp
Company participation
43%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Apr 2024 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Lilly (Eli) →
LLY
United States$742.4bn2.150%+0.328 pp+0.881 pp+99.0%Yes
Johnson & Johnson →
JNJ
United States$348.3bn1.009%-0.129 pp-0.428 pp-9.0%No
Pfizer →
PFE
United States$144.7bn0.419%-0.036 pp-0.319 pp-30.7%No
Bristol Myers Squibb →
BMY
United States$89.1bn0.258%-0.038 pp-0.216 pp-31.4%No
Zoetis →
ZTS
United States$72.9bn0.211%-0.045 pp-0.064 pp-8.5%No
Merck & Co. →
MRK
United States$327.3bn0.948%+0.038 pp-0.042 pp+15.0%Yes
Viatris →
VTRS
United States$13.8bn0.040%-0.002 pp+0.002 pp+29.9%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.