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Mega Cap Healthcare
Stocks Ranked by
Market Capitalization

Name Market cap Price Price
change %
LLY icon
1
Eli Lilly
LLY
$1.26T
$1.26T $1,417.54 3.19%
JNJ icon
2
Johnson & Johnson
JNJ
$658B
$658B $273.20 0.73%
ABBV icon
3
AbbVie
ABBV
$521B
$521B $294.89 1.41%
MRK icon
4
Merck
MRK
$369B
$369B $149.52 2.18%
UNH icon
5
UnitedHealth
UNH
$365B
$365B $406.97 0.96%
NVS icon
6
Novartis
NVS
$304B
$304B $160.79 0.19%
AZN icon
7
AstraZeneca
AZN
$289B
$289B $186.65 7.02%
TMO icon
8
Thermo Fisher Scientific
TMO
$258B
$258B $697 1.72%
AMGN icon
9
Amgen
AMGN
$252B
$252B $466.01 1.15%
GILD icon
10
Gilead Sciences
GILD
$212B
$212B $170.68 3.06%

Mega Cap Healthcare Stocks at a Glance

Healthcare companies develop drugs, build medical devices, run hospitals and insurers, and supply the systems behind patient care. Demand is largely non-discretionary, but returns hinge on drug-pipeline outcomes, patent lives, and reimbursement policy — a mix of defensive services and high-risk, high-reward research bets.

There are 10 mega cap Healthcare stocks — companies in the Healthcare sector with a market cap over $200B — worth a combined $4.49T.

The largest by market cap are Eli Lilly (LLY) at $1.26T, Johnson & Johnson (JNJ) at $658B and AbbVie (ABBV) at $521B.

Among institutional investors, UnitedHealth (UNH) drew the most net new fund positions in Q2 2026: 531 funds opened new positions, taking total fund holders up 348 (11%) quarter-over-quarter.

  • Combined market cap: $4.49T across 10 stocks.
  • Mega Cap: market cap over $200B.
  • Largest constituent: Eli Lilly (LLY), $1.26T market cap.
  • Most net new fund positions in Q2 2026: UnitedHealth (UNH), +348 holders.

Market caps and prices updated daily; fund activity based on aggregated SEC 13F filings for Q2 2026.