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 Technology37.8%+2.39 pp Industrials9.6%+0.25 pp Materials2.2%+0.06 pp Utilities2.6%-0.01 pp Financials11.9%-0.11 pp Energy2.3%-0.17 pp Real Estate2.1%-0.28 pp Communication Services2.2%-0.31 pp Health Care11.3%-0.33 pp Consumer Staples6.0%-0.70 pp Consumer Discretionary12.0%-0.78 pp

2 · Industry

Inside Health Care

Managed Health Care0.84%-0.55 pp Pharmaceuticals4.11%+0.28 pp Health Care Equipment2.25%-0.18 pp Life Sciences Tools & Services1.03%-0.12 pp Biotechnology1.91%+0.12 pp Health Care Distributors0.44%+0.09 pp Health Care Supplies0.09%-0.04 pp Health Care Facilities0.21%+0.04 pp Health Care Services0.44%+0.02 pp Health Care Technology0.03%+0.00 pp

3 · Sub-industry

Inside Pharmaceuticals

Pharmaceuticals4.11%+0.284 pp

Concentrated

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

View all contributions →

Pharmaceuticals · weight

4.11%

Industry change · 12M

+0.28 pp

Pharmaceuticals · contribution

+0.284 pp

Company participation

71%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Dec 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
Lilly (Eli) → LLY	United States	$1016.0bn	1.990%	+0.544 pp	+0.328 pp	+40.2%	Yes
Johnson & Johnson → JNJ	United States	$498.6bn	0.977%	+0.083 pp	+0.187 pp	+47.5%	Yes
Pfizer → PFE	United States	$141.6bn	0.277%	-0.013 pp	-0.064 pp	+0.6%	No
Merck & Co. → MRK	United States	$261.3bn	0.512%	+0.092 pp	-0.059 pp	+9.8%	Yes
Zoetis → ZTS	United States	$55.4bn	0.109%	-0.021 pp	-0.058 pp	-21.8%	No
Bristol Myers Squibb → BMY	United States	$109.8bn	0.215%	+0.031 pp	-0.045 pp	+0.1%	Yes
Viatris → VTRS	United States	$14.3bn	0.028%	+0.005 pp	-0.006 pp	+5.1%	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.