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MIG

Mariner Investment Group Portfolio holdings

AUM $463M
1-Year Est. Return 13.33%
This Fund
S&P 500
This Quarter Est. Return
+2.13%
1 Year Est. Return
+13.33%
3 Year Est. Return
–
5 Year Est. Return
–
10 Year Est. Return
–
AUM
$1.71B
AUM Growth
+$1.38B
Cap. Flow
+$1.45B
Cap. Flow %
84.65%
Top 10 Hldgs %
64.03%
Holding
130
New
52
Increased
17
Reduced
10
Closed
20

Top Buys

Rank Stock Value
1
MSFT icon
Microsoft
MSFT
+$172M
2
LRCX icon
Lam Research
LRCX
+$114M
3
COST icon
Costco
COST
+$113M
4
CSCO icon
Cisco
CSCO
+$102M
5
GOOG icon
Alphabet (Google) Class C
GOOG
+$100M

Top Sells

Rank Stock Value
1
SPY icon
State Street SPDR S&P 500 ETF Trust
SPY
+$26M
2
LQD icon
iShares iBoxx $ Investment Grade Corporate Bond ETF
LQD
+$21M
3
JFR icon
Nuveen Floating Rate Income Fund
JFR
+$12.8M
4
BHF icon
Brighthouse Financial
BHF
+$7.22M
5
CEG icon
Constellation Energy
CEG
+$2.94M

Sector Composition

Rank Sector Weight
1 Technology 49.3%
2 Industrials 8.37%
3 Communication Services 6.53%
4 Consumer Staples 6.35%
5 Materials 5.05%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
WMB icon
76
CALL
Williams Companies
WMB
$86.1B
$125K 0.01%
150,000
+100,000
+200% +$6.05M
EIM
77
Eaton Vance Municipal Bond Fund
EIM
$499M
$119K 0.01%
12,181
-104,666
-90% -$1.03M
IP icon
78
PUT
International Paper
IP
$22B
$118K 0.01%
+100,000
New +$4.11M
RRC icon
79
CALL
Range Resources
RRC
$8.95B
$91K 0.01%
130,000
-155,000
-54% -$5.77M
IWM icon
80
PUT
iShares Russell 2000 ETF
IWM
$83B
$90.1K 0.01%
+206,500
New +$50.8M
QQQ icon
81
CALL
Invesco QQQ Trust
QQQ
$484B
$66.8K ﹤0.01%
+50,000
New +$30.7M
FMC icon
82
PUT
FMC
FMC
$1.33B
$66.3K ﹤0.01%
+50,000
New +$953K
UAL icon
83
PUT
United Airlines
UAL
$42.1B
$64.1K ﹤0.01%
+75,000
New +$7.58M
SPY icon
84
PUT
State Street SPDR S&P 500 ETF Trust
SPY
$823B
$53.6K ﹤0.01%
75,000
-260,000
-78% -$176M
BXSL icon
85
PUT
Blackstone Secured Lending
BXSL
$5.72B
$43.8K ﹤0.01%
+125,000
New +$3.35M
CMCSA icon
86
PUT
Comcast
CMCSA
$90B
$41.4K ﹤0.01%
120,000
– –
SW
87
PUT
Smurfit Westrock
SW
$25.3B
$40K ﹤0.01%
+50,000
New +$1.91M
SPY icon
88
CALL
State Street SPDR S&P 500 ETF Trust
SPY
$823B
$39.3K ﹤0.01%
+50,000
New +$33.8M
IGV icon
89
PUT
iShares Expanded Tech-Software Sector ETF
IGV
$14.5B
$37.5K ﹤0.01%
50,000
– –
DAL icon
90
PUT
Delta Air Lines
DAL
$60.1B
$30K ﹤0.01%
+50,000
New +$3.12M
HWM icon
91
PUT
Howmet Aerospace
HWM
$112B
$18.8K ﹤0.01%
+25,000
New +$4.98M
DOCS icon
92
PUT
Doximity
DOCS
$4.88B
$5K ﹤0.01%
40,000
-100
-0.2% -$5.61K
CRWV
93
CALL
CoreWeave
CRWV
$49.5B
$3.88K ﹤0.01%
+25,000
New +$2.53M
CC icon
94
CALL
Chemours
CC
$2.37B
$2.5K ﹤0.01%
50,000
– –
DUK icon
95
CALL
Duke Energy
DUK
$97.3B
$1.25K ﹤0.01%
25,000
– –
BRLSW icon
96
Borealis Foods Inc Warrant
BRLSW
$1.17K ﹤0.01%
23,300
– –
CYCUW
97
Cycurion Inc Warrant
CYCUW
$311K
$1.02K ﹤0.01%
30,000
– –
BSLKW
98
DELISTED
Bolt Projects Holdings Warrant
BSLKW
$317 ﹤0.01%
19,150
– –
AMD icon
99
Advanced Micro Devices
AMD
$789B
– –
-12,500
Closed -$2.02M
APA icon
100
CALL
APA Corp
APA
$13.2B
– –
-100,000
Closed -$500K
1 2 3
4
5

Similar funds

CPIM
Coalescence Partners Investment Management New York $463M AUM 8.27% 1-Year Est. Return
NG
NatWest Group Edinburgh, Scotland, United Kingdom $462M AUM 47.31% 1-Year Est. Return
PC
ParaFi Capital New York $462M AUM 12.81% 1-Year Est. Return
AC
Aristides Capital Louisville, Kentucky $462M AUM 28.94% 1-Year Est. Return
PRCP
Pacific Ridge Capital Partners Lake Oswego, Oregon $462M AUM 40.76% 1-Year Est. Return
RAA
RWC Asset Advisors Miami, Florida $464M AUM 93.73% 1-Year Est. Return
GLAM
Gardner Lewis Asset Management Chadds Ford, Pennsylvania $462M AUM 65.29% 1-Year Est. Return
ACGA
Atlanta Consulting Group Advisors Atlanta, Georgia $465M AUM 17.21% 1-Year Est. Return

Mariner Investment Group's Q4 2025 Portfolio in Review

As of Q4 2025, Mariner Investment Group held 130 positions worth $1.71B, up 418% from $331M the previous quarter. Its ten largest holdings account for 64% of the portfolio.

Mariner Investment Group deployed $1.45B of net new capital in Q4 2025, opening 52 new positions and adding to 17 existing holdings. Its largest new stake was Microsoft: 344,000 shares worth $166M.

By sector, the portfolio is most concentrated in Technology at 49% of assets, up from 2% a quarter earlier, followed by Industrials and Communication Services.

On the sell side, the largest reduction was Nuveen Floating Rate Income Fund, an estimated $12.8M trimmed.

  • Mariner Investment Group's largest Q4 2025 buy was Microsoft: 344,000 shares worth $166M.
  • Mariner Investment Group added most to iShares Bitcoin Trust in Q4 2025, an estimated $7.47M increase.
  • Mariner Investment Group's biggest Q4 2025 reduction was Nuveen Floating Rate Income Fund, cutting an estimated $12.8M.
  • Mariner Investment Group fully exited State Street SPDR S&P 500 ETF Trust in Q4 2025, selling an estimated $26M.
  • Mariner Investment Group's ten largest holdings make up 64% of its $1.71B portfolio in Q4 2025.
  • Mariner Investment Group opened 52 new positions and closed 20 in Q4 2025.
  • Mariner Investment Group's portfolio value rose 418% quarter-over-quarter to $1.71B.

Based on Mariner Investment Group's 13F filing for Q4 2025, filed 25 Feb 2026.