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 Technology38.1%+4.07 pp Utilities2.8%-0.02 pp Consumer Discretionary12.0%-0.02 pp Energy2.3%-0.32 pp Materials2.1%-0.33 pp Real Estate2.1%-0.38 pp Industrials9.4%-0.40 pp Communication Services2.2%-0.48 pp Health Care11.5%-0.58 pp Consumer Staples6.2%-0.72 pp Financials11.4%-0.82 pp

2 · Industry

Inside Health Care

Managed Health Care0.83%-0.76 pp Pharmaceuticals4.11%+0.25 pp Health Care Equipment2.35%-0.12 pp Health Care Distributors0.47%+0.10 pp Life Sciences Tools & Services1.06%-0.10 pp Biotechnology1.94%+0.09 pp Health Care Supplies0.09%-0.05 pp Health Care Facilities0.23%+0.04 pp Health Care Services0.45%-0.04 pp Health Care Technology0.03%+0.00 pp

3 · Sub-industry

Inside Pharmaceuticals

Pharmaceuticals4.11%+0.248 pp

Concentrated

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

View all contributions →

Pharmaceuticals · weight

4.11%

Industry change · 12M

+0.25 pp

Pharmaceuticals · contribution

+0.248 pp

Company participation

86%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Nov 2025 · 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	$1016.7bn	1.997%	+0.560 pp	+0.331 pp	+36.2%	Yes
Johnson & Johnson → JNJ	United States	$498.5bn	0.979%	+0.095 pp	+0.156 pp	+37.6%	Yes
Bristol Myers Squibb → BMY	United States	$100.2bn	0.197%	-0.002 pp	-0.068 pp	-12.8%	Yes
Zoetis → ZTS	United States	$56.5bn	0.111%	-0.033 pp	-0.064 pp	-25.9%	No
Merck & Co. → MRK	United States	$260.2bn	0.511%	+0.076 pp	-0.056 pp	+7.0%	Yes
Pfizer → PFE	United States	$146.3bn	0.287%	-0.004 pp	-0.040 pp	+5.3%	Yes
Viatris → VTRS	United States	$12.3bn	0.024%	-0.001 pp	-0.010 pp	-14.2%	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.