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

1 · Sector

Weight and 12M allocation change

Information Technology41.9%+7.32 pp Energy2.5%+0.19 pp Consumer Discretionary11.8%-0.20 pp Materials2.0%-0.21 pp Communication Services2.4%-0.32 pp Real Estate2.0%-0.41 pp Utilities2.4%-0.43 pp Industrials9.6%-0.50 pp Health Care9.7%-1.47 pp Consumer Staples5.7%-1.52 pp Financials9.8%-2.46 pp

2 · Industry

Inside Health Care

Health Care Equipment1.51%-1.12 pp Pharmaceuticals3.80%+0.22 pp Biotechnology1.68%-0.18 pp Life Sciences Tools & Services0.80%-0.12 pp Health Care Distributors0.34%-0.09 pp Managed Health Care0.86%-0.08 pp Health Care Services0.42%-0.07 pp Health Care Facilities0.15%-0.06 pp Health Care Technology0.07%+0.04 pp Health Care Supplies0.08%-0.01 pp

3 · Sub-industry

Inside Pharmaceuticals

Pharmaceuticals3.80%+0.215 pp

Concentrated

Most of this industry's gains came from a few companies.

View all contributions →

Pharmaceuticals · weight

3.80%

Industry change · 12M

+0.22 pp

Pharmaceuticals · contribution

+0.215 pp

Company participation

86%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

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

Company	Country	Market cap	Universe weight	3M contribution	12M contribution	12M price return	Above 6M weight average
Lilly (Eli) → LLY	United States	$1040.6bn	1.803%	+0.441 pp	+0.219 pp	+50.9%	Yes
Zoetis → ZTS	United States	$32.6bn	0.056%	-0.020 pp	-0.114 pp	-53.2%	No
Johnson & Johnson → JNJ	United States	$542.4bn	0.940%	+0.118 pp	+0.094 pp	+48.8%	Yes
Merck & Co. → MRK	United States	$293.2bn	0.508%	+0.088 pp	+0.071 pp	+60.1%	Yes
Pfizer → PFE	United States	$149.2bn	0.259%	+0.043 pp	-0.044 pp	+19.2%	Yes
Bristol Myers Squibb → BMY	United States	$116.8bn	0.202%	+0.028 pp	-0.020 pp	+24.4%	Yes
Viatris → VTRS	United States	$18.9bn	0.033%	+0.009 pp	+0.009 pp	+92.3%	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.