Rock Springs Capital Management LP logo

Rock Springs Capital Management LP Portfolio Analytics

Investment Analysis & Holdings Breakdown

Comprehensive portfolio analytics for Rock Springs Capital Management LP with $1.7B in long positions as of Q3 2025, 82% allocated to Healthcare, and 38% concentrated in top 10 positions.

Portfolio Value
$1.7B
Top 10 Concentration
38%
Top Sector
Healthcare (82%)
US Exposure
93%
Market Cap Focus
Mid Cap
Countries
6

Composition Analysis

Portfolio breakdown by sector, industry, and market capitalization

Sector Allocation

Healthcare: 81.80%HealthcareETF: 0.90%
Healthcare
81.80%
ETF
0.90%

Industry Breakdown

9 industries across all sectors

Biotechnology: 56.14%BiotechnologyMedical - Devices: 8.71%Medical - DevicesDrug Manufacturers - General: 4.72%Medical - Diagnostics & Research: 3.44%Medical - Instruments & Supplies: 3.21%Medical - Healthcare Information Services: 2.50%Medical - Care Facilities: 2.16%2 more: 1.82%
Biotechnology
Healthcare
56.14%
Medical - Devices
Healthcare
8.71%
Drug Manufacturers - General
Healthcare
4.72%
Medical - Diagnostics & Research
Healthcare
3.44%
Medical - Instruments & Supplies
Healthcare
3.21%
Medical - Healthcare Information Services
Healthcare
2.50%
Medical - Care Facilities
Healthcare
2.16%
Drug Manufacturers - Specialty & Generic
Healthcare
0.93%
ETF
ETF
0.89%

Filter by Sector

Select a sector to filter industries

Market Cap Distribution

Mega Cap (> $200B): 4.72%Large Cap ($10B - $200B): 21.34%Large Cap ($10B - $200B)Mid Cap ($2B - $10B): 43.04%Mid Cap ($2B - $10B)Small Cap ($300M - $2B): 14.01%Small Cap ($300M - $2B)Micro Cap ($50M - $300M): 0.94%Nano Cap (< $50M): 2.42%N/A (ETF or Unknown): 13.53%N/A (ETF or Unknown)
Mega Cap (> $200B)
4.72%
Large Cap ($10B - $200B)
21.34%
Mid Cap ($2B - $10B)
43.04%
Small Cap ($300M - $2B)
14.01%
Micro Cap ($50M - $300M)
0.94%
Nano Cap (< $50M)
2.42%
N/A (ETF or Unknown)
13.53%

Portfolio Concentration

Top 10 Holdings %
37.88%
Top 20 Holdings %
58.37%
Top 50 Holdings %
90.57%
Top 100 Holdings %
100.0%

Geographic Exposure

Portfolio breakdown by country of incorporation

Domestic (US)
92.57%
International
7.43%
Countries
6
Largest Int'l Market
Netherlands - 5.21%
United States of America
92.57% ($1.6B)
83 holdings
Netherlands
5.21% ($88.7M)
3 holdings
Canada
2.01% ($34.2M)
1 holdings
Ireland
0.20% ($3.4M)
2 holdings
Switzerland
0.01% ($202.2K)
1 holdings
Israel
0.00% ($19.7K)
1 holdings

Holding Behavior

Investment patterns and position management analysis

Portfolio Stability & Commitment

Avg. Top 10
17.7 quarters
Avg. Top 20
24.7 quarters
Avg. All Positions
13.1 quarters
Median Holding Period
6 quarters
Persistence Rate
64.84%
Persistent Holdings Weight
75.84%
Persistent Positions
59
Longest Held
Intuitive Surgical Inc. logo
Intuitive Surgical Inc.ISRG - 47 quarters

Position Sizing & Influence

Current Quarter

Avg. New Position
0.23%
Avg. Position Weight
1.10%
Largest Position
ARGX
argenx SE American Depositary SharesARGX - 6.18%
Largest Ownership Stake
Talphera, Inc. Common Stock logo
Talphera, Inc. Common StockTLPH - 7.87%
Avg. Ownership Stake
0.70%
Ownership Stake >5%
1
Ownership Stake >1%
20

Historical (Since Q4 2013)

Avg. New Position
1.01%
Avg. Ownership Stake
1.07%
Largest Position
Ardelyx, Inc. logo
Ardelyx, Inc.ARDX - 13.59% (Q4 2016)
Largest Ownership Stake
Tempest Therapeutics, Inc. Common Stock logo
Tempest Therapeutics, Inc. Common StockTPST - 11.92% (Q4 2021)

Portfolio Turnover

Current Quarter

Turnover Ratio
10.0%
Value Traded
$169.68M
Positions Added
6
Positions Exited
9

Historical (Since Q4 2013)

Avg. Turnover Ratio
12.4%
Avg. Positions Added
11
Avg. Positions Exited
10
Highest Turnover
50.0%
Q4 2013
Lowest Turnover
4.0%
Q1 2023

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