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

Consumer Discretionary11.4%+4.38 pp Energy3.6%+0.25 pp Consumer Staples7.5%+0.07 pp Utilities3.3%-0.11 pp Materials3.1%-0.19 pp Industrials10.0%-0.23 pp Real Estate3.1%-0.29 pp Communication Services3.2%-0.40 pp Health Care16.5%-0.47 pp Information Technology27.3%-1.33 pp Financials11.1%-1.69 pp

2 · Industry

Inside Health Care

Biotechnology2.69%+0.18 pp Managed Health Care2.20%-0.16 pp Health Care Services0.72%-0.15 pp Life Sciences Tools & Services1.95%-0.14 pp Health Care Equipment3.14%-0.12 pp Pharmaceuticals4.99%-0.05 pp Health Care Supplies0.19%-0.04 pp Health Care Distributors0.38%+0.02 pp Health Care Facilities0.25%-0.01 pp Health Care Technology0.00%+0.00 pp

3 · Sub-industry

Inside Pharmaceuticals

Pharmaceuticals4.99%-0.051 pp

Concentrated

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

View all contributions →

Pharmaceuticals · weight

4.99%

Industry change · 12M

-0.05 pp

Pharmaceuticals · contribution

-0.051 pp

Company participation

14%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Mar 2023 · 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	$270.1bn	0.921%	-0.094 pp	+0.223 pp	+33.6%	No
Pfizer → PFE	United States	$229.3bn	0.782%	-0.256 pp	-0.198 pp	-18.5%	No
Lilly (Eli) → LLY	United States	$326.4bn	1.113%	-0.141 pp	+0.196 pp	+21.4%	No
Johnson & Johnson → JNJ	United States	$403.7bn	1.377%	-0.289 pp	-0.191 pp	-10.2%	No
Bristol Myers Squibb → BMY	United States	$145.5bn	0.496%	-0.056 pp	-0.039 pp	-2.9%	No
Zoetis → ZTS	United States	$77.1bn	0.263%	+0.017 pp	-0.036 pp	-11.0%	Yes
Viatris → VTRS	United States	$11.5bn	0.039%	-0.009 pp	-0.005 pp	-7.6%	No

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.