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 Technology35.4%+6.08 pp Financials12.0%+0.50 pp Consumer Discretionary12.8%+0.34 pp Consumer Staples6.7%+0.10 pp Utilities2.6%-0.18 pp Communication Services2.5%-0.30 pp Real Estate2.3%-0.61 pp Materials2.2%-0.64 pp Energy2.4%-0.74 pp Industrials9.3%-1.06 pp Health Care11.7%-3.51 pp

2 · Industry

Inside Health Care

Pharmaceuticals3.82%-0.88 pp Managed Health Care1.39%-0.68 pp Biotechnology1.79%-0.61 pp Life Sciences Tools & Services1.15%-0.49 pp Health Care Equipment2.43%-0.46 pp Health Care Services0.41%-0.28 pp Health Care Distributors0.35%-0.06 pp Health Care Facilities0.17%-0.04 pp Health Care Technology0.03%+0.03 pp Health Care Supplies0.13%-0.02 pp

3 · Sub-industry

Inside Pharmaceuticals

Pharmaceuticals3.82%-0.881 pp

Concentrated

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

View all contributions →

Pharmaceuticals · weight

3.82%

Industry change · 12M

-0.88 pp

Pharmaceuticals · contribution

-0.881 pp

Company participation

29%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Dec 2024 · 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
Johnson & Johnson → JNJ	United States	$348.2bn	0.790%	-0.119 pp	-0.336 pp	-4.8%	No
Merck & Co. → MRK	United States	$251.6bn	0.571%	-0.099 pp	-0.253 pp	-6.3%	No
Pfizer → PFE	United States	$150.3bn	0.341%	-0.041 pp	-0.144 pp	-2.2%	No
Zoetis → ZTS	United States	$73.5bn	0.167%	-0.039 pp	-0.104 pp	-16.6%	No
Bristol Myers Squibb → BMY	United States	$114.7bn	0.260%	+0.016 pp	-0.051 pp	+15.8%	Yes
Lilly (Eli) → LLY	United States	$732.9bn	1.662%	-0.298 pp	+0.012 pp	+33.3%	No
Viatris → VTRS	United States	$14.9bn	0.034%	+0.001 pp	-0.005 pp	+19.7%	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.