Partner Fund Management, L.P. logo

Partner Fund Management, L.P. Portfolio Analytics

Investment Analysis & Holdings Breakdown

Comprehensive portfolio analytics for Partner Fund Management, L.P. with $1.2B in long positions as of Q3 2025, 91% allocated to Healthcare, and 52% concentrated in top 10 positions.

Portfolio Value
$1.2B
Top 10 Concentration
52%
Top Sector
Healthcare (91%)
US Exposure
97%
Market Cap Focus
Large Cap
Countries
4

Composition Analysis

Portfolio breakdown by sector, industry, and market capitalization

Sector Allocation

Healthcare: 91.20%HealthcareETF: 1.20%Consumer Defensive: 0.10%
Healthcare
91.20%
ETF
1.20%
Consumer Defensive
0.10%

Industry Breakdown

12 industries across all sectors

Biotechnology: 24.61%BiotechnologyDrug Manufacturers - General: 16.56%Drug Manufacturers - GeneralMedical - Care Facilities: 12.58%Medical - Care FacilitiesMedical - Devices: 10.15%Medical - DevicesMedical - Healthcare Plans: 7.15%Medical - Distribution: 7.00%Medical - Diagnostics & Research: 6.00%5 more: 8.42%5 more
Biotechnology
Healthcare
24.61%
Drug Manufacturers - General
Healthcare
16.56%
Medical - Care Facilities
Healthcare
12.58%
Medical - Devices
Healthcare
10.15%
Medical - Healthcare Plans
Healthcare
7.15%
Medical - Distribution
Healthcare
7.00%
Medical - Diagnostics & Research
Healthcare
6.00%
Medical - Instruments & Supplies
Healthcare
3.85%
Drug Manufacturers - Specialty & Generic
Healthcare
2.17%
ETF
ETF
1.22%
Medical - Healthcare Information Services
Healthcare
1.07%
Household & Personal Products
Consumer Defensive
0.11%

Filter by Sector

Select a sector to filter industries

Market Cap Distribution

Mega Cap (> $200B): 16.56%Mega Cap (> $200B)Large Cap ($10B - $200B): 40.70%Large Cap ($10B - $200B)Mid Cap ($2B - $10B): 23.83%Mid Cap ($2B - $10B)Small Cap ($300M - $2B): 5.88%Micro Cap ($50M - $300M): 2.45%Nano Cap (< $50M): 2.17%N/A (ETF or Unknown): 8.40%N/A (ETF or Unknown)
Mega Cap (> $200B)
16.56%
Large Cap ($10B - $200B)
40.70%
Mid Cap ($2B - $10B)
23.83%
Small Cap ($300M - $2B)
5.88%
Micro Cap ($50M - $300M)
2.45%
Nano Cap (< $50M)
2.17%
N/A (ETF or Unknown)
8.40%

Portfolio Concentration

Top 10 Holdings %
51.56%
Top 20 Holdings %
70.47%
Top 50 Holdings %
96.58%
Top 100 Holdings %
100.0%

Geographic Exposure

Portfolio breakdown by country of incorporation

Domestic (US)
96.6%
International
3.4%
Countries
4
Largest Int'l Market
Ireland - 2.02%
United States of America
96.60% ($1.1B)
62 holdings
Ireland
2.02% ($23.4M)
1 holdings
Netherlands
1.30% ($15.0M)
2 holdings
Canada
0.08% ($885.9K)
1 holdings

Holding Behavior

Investment patterns and position management analysis

Portfolio Stability & Commitment

Avg. Top 10
20.9 quarters
Avg. Top 20
14.7 quarters
Avg. All Positions
7.7 quarters
Median Holding Period
2 quarters
Persistence Rate
39.39%
Persistent Holdings Weight
62.48%
Persistent Positions
26
Longest Held
Edwards Lifesciences Corp logo
Edwards Lifesciences CorpEW - 43 quarters

Position Sizing & Influence

Current Quarter

Avg. New Position
0.51%
Avg. Position Weight
1.52%
Largest Position
Eli Lilly & Co. logo
Eli Lilly & Co.LLY - 14.85%
Largest Ownership Stake
Outset Medical, Inc. Common Stock logo
Outset Medical, Inc. Common StockOM - 9.74%
Avg. Ownership Stake
0.46%
Ownership Stake >5%
1
Ownership Stake >1%
5

Historical (Since Q1 2013)

Avg. New Position
1.28%
Avg. Ownership Stake
0.82%
Largest Position
Eli Lilly & Co. logo
Eli Lilly & Co.LLY - 18.56% (Q2 2025)
Largest Ownership Stake
Caribou Biosciences, Inc. Common Stock logo
Caribou Biosciences, Inc. Common StockCRBU - 9.88% (Q2 2022)

Portfolio Turnover

Current Quarter

Turnover Ratio
26.7%
Value Traded
$309.35M
Positions Added
10
Positions Exited
12

Historical (Since Q1 2013)

Avg. Turnover Ratio
34.1%
Avg. Positions Added
13
Avg. Positions Exited
18
Highest Turnover
83.6%
Q4 2019
Lowest Turnover
9.8%
Q2 2021

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