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 Technology29.3%+5.56 pp Consumer Discretionary12.4%+2.29 pp Industrials10.4%-0.00 pp Real Estate2.9%-0.24 pp Materials2.8%-0.35 pp Communication Services2.8%-0.37 pp Energy3.2%-0.82 pp Utilities2.8%-0.82 pp Financials11.5%-0.88 pp Consumer Staples6.6%-1.31 pp Health Care15.2%-3.03 pp

2 · Industry

Inside Health Care

Pharmaceuticals4.70%-1.12 pp Managed Health Care2.07%-0.56 pp Biotechnology2.40%-0.49 pp Life Sciences Tools & Services1.64%-0.40 pp Health Care Services0.70%-0.26 pp Health Care Equipment2.89%-0.16 pp Health Care Facilities0.22%-0.03 pp Health Care Supplies0.15%+0.02 pp Health Care Distributors0.41%-0.02 pp Health Care Technology0.00%+0.00 pp

3 · Sub-industry

Inside Pharmaceuticals

Pharmaceuticals4.70%-1.117 pp

Concentrated

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

View all contributions →

Pharmaceuticals · weight

4.70%

Industry change · 12M

-1.12 pp

Pharmaceuticals · contribution

-1.117 pp

Company participation

57%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Dec 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
Pfizer → PFE	United States	$162.6bn	0.485%	-0.141 pp	-0.553 pp	-41.3%	No
Johnson & Johnson → JNJ	United States	$377.3bn	1.125%	-0.227 pp	-0.541 pp	-8.6%	No
Lilly (Eli) → LLY	United States	$553.4bn	1.650%	-0.053 pp	+0.396 pp	+60.9%	Yes
Bristol Myers Squibb → BMY	United States	$104.4bn	0.311%	-0.094 pp	-0.241 pp	-26.1%	No
Merck & Co. → MRK	United States	$276.3bn	0.824%	-0.049 pp	-0.191 pp	+1.0%	Yes
Zoetis → ZTS	United States	$90.6bn	0.270%	+0.003 pp	+0.024 pp	+35.9%	Yes
Viatris → VTRS	United States	$13.0bn	0.039%	-0.001 pp	-0.010 pp	+2.1%	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.