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

Latest available · not live

20182026

Universe›Health Care›Pharmaceuticals›Pharmaceuticals

1 · Sector

Weight and 12M allocation change

Information Technology43.1%+4.93 pp Energy3.8%+1.55 pp Health Care10.6%+0.26 pp Materials1.9%-0.22 pp Communication Services2.1%-0.27 pp Real Estate1.8%-0.35 pp Industrials9.1%-0.58 pp Utilities2.1%-0.61 pp Consumer Staples5.4%-0.78 pp Consumer Discretionary10.3%-1.78 pp Financials9.7%-2.16 pp

2 · Industry

Inside Health Care

Health Care Equipment1.52%-0.74 pp Pharmaceuticals4.07%+0.69 pp Biotechnology2.04%+0.24 pp Life Sciences Tools & Services1.07%+0.17 pp Health Care Technology0.10%+0.08 pp Health Care Services0.41%-0.05 pp Managed Health Care0.82%-0.05 pp Health Care Facilities0.16%-0.04 pp Health Care Distributors0.37%-0.04 pp Health Care Supplies0.08%-0.00 pp

3 · Sub-industry

Inside Pharmaceuticals

Pharmaceuticals4.07%+0.688 pp

Concentrated

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

View all contributions →

Pharmaceuticals · weight

4.07%

Industry change · 12M

+0.69 pp

Pharmaceuticals · contribution

+0.688 pp

Company participation

86%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Sep 2026 · 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	$1089.2bn	1.830%	-0.133 pp	+0.384 pp	+52.6%	Yes
Merck & Co. → MRK	United States	$358.5bn	0.602%	+0.051 pp	+0.183 pp	+78.2%	Yes
Johnson & Johnson → JNJ	United States	$638.0bn	1.072%	+0.009 pp	+0.178 pp	+46.0%	Yes
Zoetis → ZTS	United States	$28.9bn	0.048%	-0.004 pp	-0.081 pp	-51.4%	No
Bristol Myers Squibb → BMY	United States	$127.5bn	0.214%	+0.010 pp	+0.030 pp	+45.0%	Yes
Pfizer → PFE	United States	$162.6bn	0.273%	+0.035 pp	-0.017 pp	+19.8%	Yes
Viatris → VTRS	United States	$20.4bn	0.034%	+0.002 pp	+0.011 pp	+85.3%	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.