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 Technology32.5%+4.21 pp Financials12.6%+0.68 pp Utilities2.9%+0.21 pp Communication Services2.8%+0.07 pp Consumer Staples7.3%-0.17 pp Real Estate2.5%-0.21 pp Energy2.8%-0.42 pp Materials2.4%-0.51 pp Consumer Discretionary11.4%-0.59 pp Industrials9.8%-0.82 pp Health Care12.9%-2.46 pp

2 · Industry

Inside Health Care

Pharmaceuticals4.18%-0.85 pp Life Sciences Tools & Services1.10%-0.54 pp Managed Health Care1.52%-0.31 pp Health Care Equipment2.69%-0.28 pp Biotechnology2.15%-0.21 pp Health Care Services0.54%-0.16 pp Health Care Supplies0.11%-0.10 pp Health Care Facilities0.20%-0.04 pp Health Care Technology0.03%+0.03 pp Health Care Distributors0.43%-0.00 pp

3 · Sub-industry

Inside Pharmaceuticals

Pharmaceuticals4.18%-0.847 pp

Concentrated

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

View all contributions →

Pharmaceuticals · weight

4.18%

Industry change · 12M

-0.85 pp

Pharmaceuticals · contribution

-0.847 pp

Company participation

57%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Mar 2025 · 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
Merck & Co. → MRK	United States	$226.7bn	0.538%	-0.032 pp	-0.388 pp	-30.0%	No
Lilly (Eli) → LLY	United States	$783.1bn	1.859%	+0.197 pp	-0.191 pp	+6.9%	Yes
Johnson & Johnson → JNJ	United States	$399.3bn	0.948%	+0.158 pp	-0.109 pp	+8.2%	Yes
Pfizer → PFE	United States	$143.6bn	0.341%	+0.000 pp	-0.094 pp	-3.0%	No
Zoetis → ZTS	United States	$73.7bn	0.175%	+0.008 pp	-0.040 pp	-1.7%	Yes
Viatris → VTRS	United States	$10.4bn	0.025%	-0.009 pp	-0.015 pp	-23.8%	No
Bristol Myers Squibb → BMY	United States	$123.8bn	0.294%	+0.034 pp	-0.010 pp	+18.1%	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.