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 Technology26.2%+5.17 pp Consumer Discretionary7.6%+1.03 pp Industrials12.5%+0.98 pp Financials14.5%+0.40 pp Materials3.4%+0.25 pp Energy2.2%-0.33 pp Utilities3.2%-0.52 pp Real Estate3.1%-0.54 pp Communication Services4.6%-0.59 pp Consumer Staples7.1%-2.07 pp Health Care15.5%-3.78 pp

2 · Industry

Inside Health Care

Pharmaceuticals4.48%-1.87 pp Biotechnology2.08%-1.01 pp Managed Health Care2.04%-0.41 pp Health Care Equipment3.24%-0.35 pp Health Care Services0.87%-0.20 pp Health Care Supplies0.28%+0.16 pp Life Sciences Tools & Services1.94%-0.07 pp Health Care Distributors0.30%-0.07 pp Health Care Facilities0.24%+0.03 pp Health Care Technology0.00%+0.00 pp

3 · Sub-industry

Inside Pharmaceuticals

Pharmaceuticals4.48%-1.874 pp

Concentrated

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

View all contributions →

Pharmaceuticals · weight

4.48%

Industry change · 12M

-1.87 pp

Pharmaceuticals · contribution

-1.874 pp

Company participation

100%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Apr 2021 · 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	$428.5bn	1.553%	+0.525 pp	-0.659 pp	+11.4%	Yes
Merck & Co. → MRK	United States	$179.9bn	0.652%	+0.206 pp	-0.423 pp	-3.1%	Yes
Pfizer → PFE	United States	$215.6bn	0.781%	+0.303 pp	-0.349 pp	+10.6%	Yes
Bristol Myers Squibb → BMY	United States	$139.4bn	0.505%	+0.173 pp	-0.263 pp	+5.9%	Yes
Lilly (Eli) → LLY	United States	$175.3bn	0.635%	+0.159 pp	-0.192 pp	+20.4%	Yes
Viatris → VTRS	United States	$16.1bn	0.058%	+0.058 pp	+0.058 pp	-20.7%	Yes
Zoetis → ZTS	United States	$82.2bn	0.298%	+0.122 pp	-0.046 pp	+34.6%	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.