MARINER INVESTMENT GROUP LLC
CIK
1096978
Location
NEW YORK, NY
Portfolio Value
Mid
$1,718,068,581
Diversification
Highly concentrated
Filing Date
Global Rank
#241
/ 2,968
â–² 1225
Top Industry
Asset Management
10.1%
3Y Alpha vs SPY
-28.7%
Period ended 29 days ago
Filed Jul 27, 2026 · 2d
24 quarters · since Mar 2020
Clone Performance
Jul 2023–Jul 2026 · vs SPYHypothetical growth of buying every stock this filer reported holding, rebalancing on each filing and indexed to the same start. Option positions cannot be bought this way and are left out.
Not a measure of this manager's performance.
Most of MARINER INVESTMENT GROUP LLC's reported book is option positions, which a stock-only clone
cannot replicate. The figures below are the return of the
55% that is ordinary stock — as little as
4% in one quarter — so a manager whose options
thesis lost money can still show a large gain here.
Cloned portfolio
-5.3%
SPY
+67.9%
Annualised alpha
-20.6%
Max drawdown
−54.0%
Estimate. 13F holdings are quarter-lagged, so the clone rebalances about 45 days after each period end — when the filing becomes public — and it excludes option and short positions. It tracks 55% of reported value on average across 11 quarters. Past performance does not predict future results.
Portfolio Concentration
80 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026Top Position
61.2%
−3.6 pts
Top 5
82.5%
+4.4 pts
Top 10
87.0%
+3.3 pts
HHI
3,955
Highly concentrated−329
Portfolio Trend
24 quarters · across all stocks
Sector Breakdown
As of Jun 30, 2026| Sector | % Portfolio | Value |
|---|---|---|
| Unclassified | 80.2% | $1,378,399,083 |
| Industrials | 5.7% | $97,998,205 |
| Technology | 5.5% | $94,580,998 |
| Financial Services | 2.2% | $37,377,889 |
| Consumer Cyclical | 1.8% | $30,663,655 |
| Basic Materials | 1.6% | $27,553,490 |
| Real Estate | 1.5% | $26,435,787 |
| Energy | 0.6% | $10,357,800 |
| Consumer Defensive | 0.4% | $7,442,220 |
| Utilities | 0.3% | $5,107,500 |
| Communication Services | 0.1% | $2,151,954 |
Last Quarter's Activity
Export CSVAdded To
Positions the filer increased
17 positions
| Ticker | Company | Δ Shares | Shares | Value | Open |
|---|---|---|---|---|---|
| OCSL | Oaktree Specialty Lending Corp | +104,000 | 304,000 | $3,629,760 | |
| LUMN | Lumen Technologies, Inc. | +100,000 | 175,000 | $1,344,000 | |
| SOLS | Solstice Advanced Materials Inc. | +79,000 | 94,000 | $8,328,400 | |
| DOW | Dow Inc. | +63,500 | 268,500 | $7,346,160 | |
| Q | Qnity Electronics, Inc. | +54,000 | 104,000 | $16,984,240 | |
| HWM | Howmet Aerospace Inc. | +45,000 | 70,000 | $18,820,200 | |
| IHRT | iHeartMedia, Inc. | +38,886 | 102,064 | $437,854 | |
| KRMN | Karman Holdings Inc. | +28,000 | 33,000 | $1,647,360 | |
| ENTG | Entegris Inc | +25,000 | 50,000 | $8,993,000 | |
| OLN | OLIN Corp | +18,000 | 254,000 | $5,034,280 | |
| WMB | Williams Companies, Inc. | +10,000 | 105,000 | $7,805,700 | |
| LECO | Lincoln Electric Holdings Inc | +9,705 | 15,705 | $4,169,834 | |
| WIX | Wix.com Ltd. | +8,144 | 17,144 | $777,823 | |
| CAT | Caterpillar Inc | +6,700 | 15,500 | $16,505,950 | |
| CORZ | Core Scientific, Inc./tx | +5,000 | 25,000 | $639,750 | |
| TDS | Telephone & Data Systems Inc /De/ | +5,000 | 10,000 | $370,100 | |
| MTZ | Mastec Inc | +2,000 | 8,000 | $3,328,480 | |
| No positions match the current search. | |||||
Trimmed
Positions the filer reduced
13 positions
| Ticker | Company | Δ Shares | Shares | Value | Open |
|---|---|---|---|---|---|
| SPY | Spdr S&P 500 ETF Trust | −1,088,525 | 296,475 | $221,398,635 | |
| FOUR | Shift4 Payments, Inc. | −220,000 | 250,000 | $12,160,000 | |
| USO | United States Oil Fund, LP | −180,000 | 20,000 | $2,128,800 | |
| IP | International Paper Co /New/ | −50,000 | 50,000 | $1,905,000 | |
| DHI | Horton D R Inc /De/ | −45,500 | 61,500 | $10,017,120 | |
| MCD | Mcdonalds Corp | −28,500 | 1,500 | $405,465 | |
| CARR | CARRIER GLOBAL Corp | −25,000 | 50,000 | $3,667,500 | |
| WMT | Walmart Inc. | −22,700 | 7,264 | $822,720 | |
| GLW | Corning Inc /Ny | −16,000 | 14,000 | $3,576,020 | |
| CCK | Crown Holdings, Inc. | −15,000 | 5,000 | $559,100 | |
| WOLF | Wolfspeed, Inc. | −15,000 | 10,000 | $482,500 | |
| COHR | Coherent Corp. | −6,000 | 36,500 | $14,398,155 | |
| PMTS | CPI Card Group Inc. | −5,000 | 13,050 | $271,179 | |
| No positions match the current search. | |||||
New Positions
Positions the filer opened this quarter
25 positions
| Ticker | Company | Shares | Value | Open |
|---|---|---|---|---|
| QQQ | Invesco Qqq Trust, Series 1 | 1,426,800 | $1,050,695,520 | |
| CIEN | Ciena Corp | 36,000 | $17,660,160 | |
| GEV | GE Vernova Inc. | 11,000 | $12,923,460 | |
| ETN | Eaton Corp plc | 18,000 | $7,670,160 | |
| NOK | Nokia Corp | 500,000 | $6,640,000 | |
| IBM | International Business Machines Corp | 23,500 | $6,608,435 | |
| ALB | Albemarle Corp | 40,000 | $5,401,200 | |
| APO | Apollo Global Management, Inc. | 40,000 | $4,732,400 | |
| ARES | Ares Management Corp | 40,000 | $4,452,400 | |
| ARCC | Ares Capital Corp | 200,000 | $3,706,000 | |
| FERG | Ferguson Enterprises Inc. /DE/ | 12,000 | $2,847,960 | |
| STM | STMicroelectronics N.V. | 28,500 | $2,134,365 | |
| TOL | Toll Brothers, Inc. | 10,000 | $1,647,500 | |
| BHF | Brighthouse Financial, Inc. | 25,000 | $1,582,500 | |
| FIX | Comfort Systems USA Inc | 750 | $1,486,462 | |
| IREN | IREN Ltd | 30,000 | $1,371,900 | |
| SABR | Sabre Corp | 400,000 | $836,000 | |
| CIFR | Cipher Digital Inc. | 25,000 | $612,500 | |
| CSCO | Cisco Systems, Inc. | 5,000 | $587,300 | |
| CRWV | CoreWeave, Inc. | 5,000 | $497,700 | |
| FLEX | Flex Ltd. | 3,000 | $486,210 | |
| USAR | USA Rare Earth, Inc. | 15,000 | $323,700 | |
| AVEX | AEVEX Corp. | 13,528 | $282,599 | |
| TSEM | Tower Semiconductor Ltd | 1,000 | $260,640 | |
| ENPH | Enphase Energy, Inc. | 5,000 | $246,200 | |
| No positions match the current search. | ||||
Sold Out
Positions the filer fully exited
21 positions
| Ticker | Company | Shares | Value | Open |
|---|---|---|---|---|
| LYB | LyondellBasell Industries N.V. | 240,000 | $19,334,400 | |
| TLN | Talen Energy Corp | 60,000 | $19,153,800 | |
| DVN | Devon Energy Corp/De | 300,000 | $15,096,000 | |
| COP | Conocophillips | 100,000 | $13,200,000 | |
| BLDR | Builders FirstSource, Inc. | 115,000 | $9,467,950 | |
| APA | APA Corp | 200,000 | $8,488,000 | |
| APH | Amphenol Corp /De/ | 50,000 | $6,317,500 | |
| DE | Deere & Co | 10,000 | $5,633,000 | |
| WING | Wingstop Inc. | 33,500 | $5,191,495 | |
| KHC | Kraft Heinz Co | 200,000 | $4,498,000 | |
| VST | Vistra Corp. | 25,000 | $3,758,250 | |
| CEG | Constellation Energy Corp | 10,000 | $2,792,500 | |
| UAL | United Airlines Holdings, Inc. | 25,000 | $2,301,750 | |
| SW | Smurfit Westrock plc | 50,000 | $1,992,500 | |
| CCOI | Cogent Communications Holdings, Inc. | 105,000 | $1,978,200 | |
| DAL | Delta Air Lines, Inc. | 25,000 | $1,662,000 | |
| FITB | Fifth Third Bancorp | 25,000 | $1,161,500 | |
| JEF | Jefferies Financial Group Inc. | 25,000 | $1,031,750 | |
| LGN | Legence Corp. | 15,000 | $846,900 | |
| MCHP | Microchip Technology Inc | 13,000 | $839,930 | |
| MTSI | MACOM Technology Solutions Holdings, Inc. | 3,000 | $666,210 | |
| No positions match the current search. | ||||
80 tracked positions ·
$1,718,068,581 total
· as of Jun 30, 2026
All sectors
Basic Materials
Communication Services
Consumer Cyclical
Consumer Defensive
Energy
Financial Services
Industrials
Real Estate
Technology
Utilities
Showing 1–50
of 80 positions by value
· page 1 of 2
| Ticker | Company | Type | Shares | Value (USD) | % of Portfolio | History |
|---|---|---|---|---|---|---|
| QQQ |
Invesco Qqq Trust, Series 1
PUT
CALL
|
NEW | 1,426,800 | $1,050,695,520 | 61.16% | |
| SPY |
Spdr S&P 500 ETF Trust
PUT
CALL
+ SHARES
|
Reduced | 296,475 | $221,398,635 | 12.89% | |
| IBIT |
iShares Bitcoin Trust ETF
|
Held | 3,129,352 | $104,176,128 | 6.06% | |
| PWR |
Quanta Services, Inc.
CALL
Industrials
|
Held | 30,000 | $21,601,200 | 1.26% | |
| HWM |
Howmet Aerospace Inc.
CALL
Industrials
|
Added | 70,000 | $18,820,200 | 1.10% | |
| CIEN |
Ciena Corp
CALL
Technology
|
NEW | 36,000 | $17,660,160 | 1.03% | |
| Q |
Qnity Electronics, Inc.
CALL
+ SHARES
Technology
|
Added | 104,000 | $16,984,240 | 0.99% | |
| CAT |
Caterpillar Inc
CALL
Industrials
|
Added | 15,500 | $16,505,950 | 0.96% | |
| COHR |
Coherent Corp.
CALL
Technology
|
Reduced | 36,500 | $14,398,155 | 0.84% | |
| GEV |
GE Vernova Inc.
CALL
+ SHARES
Industrials
|
NEW | 11,000 | $12,923,460 | 0.75% | |
| RITM |
Rithm Capital Corp.
Real Estate
|
Held | 1,332,583 | $12,512,954 | 0.73% | |
| FOUR |
Shift4 Payments, Inc.
PUT
CALL
+ SHARES
Technology
|
Reduced | 250,000 | $12,160,000 | 0.71% | |
| LEN |
Lennar Corp /New/
PUT
Consumer Cyclical
|
Held | 123,500 | $11,175,515 | 0.65% | |
| DHI |
Horton D R Inc /De/
PUT
Consumer Cyclical
|
Reduced | 61,500 | $10,017,120 | 0.58% | |
| ENTG |
Entegris Inc
CALL
Technology
|
Added | 50,000 | $8,993,000 | 0.52% | |
| SOLS |
Solstice Advanced Materials Inc.
CALL
Basic Materials
|
Added | 94,000 | $8,328,400 | 0.48% | |
| WMB |
Williams Companies, Inc.
CALL
+ SHARES
Energy
|
Added | 105,000 | $7,805,700 | 0.45% | |
| BXSL |
Blackstone Secured Lending Fund
PUT
Financial Services
|
Held | 325,000 | $7,705,750 | 0.45% | |
| ETN |
Eaton Corp plc
PUT
Industrials
|
NEW | 18,000 | $7,670,160 | 0.45% | |
| FSK |
FS KKR Capital Corp
PUT
Financial Services
|
Held | 700,000 | $7,350,000 | 0.43% | |
| DOW |
Dow Inc.
PUT
Basic Materials
|
Added | 268,500 | $7,346,160 | 0.43% | |
| NOK |
Nokia Corp
CALL
Technology
|
NEW | 500,000 | $6,640,000 | 0.39% | |
| POST |
Post Holdings, Inc.
PUT
Consumer Defensive
|
Held | 75,000 | $6,619,500 | 0.39% | |
| IBM |
International Business Machines Corp
CALL
Technology
|
NEW | 23,500 | $6,608,435 | 0.38% | |
| ALB |
Albemarle Corp
CALL
Basic Materials
|
NEW | 40,000 | $5,401,200 | 0.31% | |
| CIM |
Chimera Investment Corp
Real Estate
|
Held | 378,899 | $5,054,512 | 0.29% | |
| OLN |
OLIN Corp
PUT
Basic Materials
|
Added | 254,000 | $5,034,280 | 0.29% | |
| APO |
Apollo Global Management, Inc.
PUT
Financial Services
|
NEW | 40,000 | $4,732,400 | 0.28% | |
| PHM |
Pultegroup Inc/Mi/
PUT
Consumer Cyclical
|
Held | 33,500 | $4,596,535 | 0.27% | |
| ETR |
Entergy Corp /De/
Utilities
|
Held | 40,000 | $4,594,400 | 0.27% | |
| ARES |
Ares Management Corp
PUT
Financial Services
|
NEW | 40,000 | $4,452,400 | 0.26% | |
| LECO |
Lincoln Electric Holdings Inc
Industrials
|
Added | 15,705 | $4,169,834 | 0.24% | |
| ARCC |
Ares Capital Corp
PUT
Financial Services
|
NEW | 200,000 | $3,706,000 | 0.22% | |
| CARR |
CARRIER GLOBAL Corp
PUT
Industrials
|
Reduced | 50,000 | $3,667,500 | 0.21% | |
| OCSL |
Oaktree Specialty Lending Corp
PUT
Financial Services
|
Added | 304,000 | $3,629,760 | 0.21% | |
| GLW |
Corning Inc /Ny
Technology
|
Reduced | 14,000 | $3,576,020 | 0.21% | |
| MTZ |
Mastec Inc
Industrials
|
Added | 8,000 | $3,328,480 | 0.19% | |
| AERO |
Grupo Aeromexico, S.A.B. de C.V.
Industrials
|
Held | 169,280 | $3,047,040 | 0.18% | |
| FERG |
Ferguson Enterprises Inc. /DE/
Industrials
|
NEW | 12,000 | $2,847,960 | 0.17% | |
| RWT |
Redwood Trust Inc
Real Estate
|
Held | 550,361 | $2,608,711 | 0.15% | |
| GBDC |
GOLUB CAPITAL BDC, Inc.
PUT
Financial Services
|
Held | 200,000 | $2,576,000 | 0.15% | |
| STM |
STMicroelectronics N.V.
CALL
Technology
|
NEW | 28,500 | $2,134,365 | 0.12% | |
| USO |
United States Oil Fund, LP
PUT
|
Reduced | 20,000 | $2,128,800 | 0.12% | |
| MFA |
Mfa Financial, Inc.
Real Estate
|
Held | 210,000 | $2,034,900 | 0.12% | |
| PMT |
PennyMac Mortgage Investment Trust
Real Estate
|
Held | 180,000 | $2,030,400 | 0.12% | |
| IP |
International Paper Co /New/
PUT
Consumer Cyclical
|
Reduced | 50,000 | $1,905,000 | 0.11% | |
| TOL |
Toll Brothers, Inc.
Consumer Cyclical
|
NEW | 10,000 | $1,647,500 | 0.10% | |
| KRMN |
Karman Holdings Inc.
CALL
+ SHARES
Industrials
|
Added | 33,000 | $1,647,360 | 0.10% | |
| BHF |
Brighthouse Financial, Inc.
Financial Services
|
NEW | 25,000 | $1,582,500 | 0.09% | |
| FIX |
Comfort Systems USA Inc
Industrials
|
NEW | 750 | $1,486,462 | 0.09% |
Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.