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 Technology27.2%+8.81 pp Consumer Discretionary7.5%+0.48 pp Materials3.1%-0.14 pp Communication Services5.1%-0.22 pp Real Estate2.9%-0.60 pp Utilities2.9%-0.78 pp Health Care16.1%-0.85 pp Consumer Staples7.8%-0.86 pp Industrials12.1%-1.12 pp Energy1.9%-1.68 pp Financials13.4%-3.05 pp

2 · Industry

Inside Health Care

Pharmaceuticals4.84%-0.57 pp Biotechnology2.27%-0.29 pp Life Sciences Tools & Services1.98%+0.19 pp Health Care Services0.85%-0.18 pp Health Care Supplies0.27%+0.15 pp Managed Health Care2.03%-0.08 pp Health Care Distributors0.30%-0.03 pp Health Care Facilities0.23%-0.02 pp Health Care Equipment3.34%-0.01 pp Health Care Technology0.00%+0.00 pp

3 · Sub-industry

Inside Pharmaceuticals

Pharmaceuticals4.84%-0.575 pp

Concentrated

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

View all contributions →

Pharmaceuticals · weight

4.84%

Industry change · 12M

-0.57 pp

Pharmaceuticals · contribution

-0.575 pp

Company participation

100%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Dec 2020 · 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	$197.5bn	0.799%	+0.798 pp	-0.285 pp	-7.2%	Yes
Johnson & Johnson → JNJ	United States	$414.3bn	1.677%	+1.675 pp	-0.207 pp	+10.8%	Yes
Pfizer → PFE	United States	$204.6bn	0.828%	+0.827 pp	-0.181 pp	+3.1%	Yes
Bristol Myers Squibb → BMY	United States	$140.2bn	0.567%	+0.567 pp	+0.054 pp	+0.4%	Yes
Lilly (Eli) → LLY	United States	$161.5bn	0.654%	+0.653 pp	+0.035 pp	+31.0%	Yes
Zoetis → ZTS	United States	$78.7bn	0.318%	+0.318 pp	+0.009 pp	+25.8%	Yes
Viatris → VTRS	United States	$0.0bn	0.000%	+0.000 pp	+0.000 pp	-6.8%	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.