MARINER INVESTMENT GROUP LLC
Sector Allocation
- Other30.8%$131.2M
- Financials30.7%$130.9M
- Industrials14.8%$63.2M
- Consumer Discretionary9.1%$38.7M
- Real Estate6.5%$27.9M
- Energy2.4%$10.4M
- Communication Services2.0%$8.4M
- Technology1.3%$5.4M
- Utilities1.2%$5.1M
- Materials1.0%$4.3M
AUM History
13fpro.ai/research/fund/mariner-investment-group-llc-1096978
Conviction and streaks
Diversifying · top 10 = 76.2%From the fund's last 12 quarters of 13F filings: positions held longest at size, and names it added to or trimmed several quarters running.
Largest positions — Q2 2026
IBIT
$104.2MSPY
$57.1MBABA
$35.4MFLR
$33.3M- DOORDASH$24.7M
GPN
$22.5M- RIVIAN$16.0M
RITM
$12.5MAKAM
$11.0M- ISHARES$8.3M
LYV
$6.0MCIM
$5.1M- ISHARES$4.9M
ETR
$4.6M- VANGUARD$4.2M
LECO
$4.2MWMB
$4.1MGLW
$3.6MFOUR
$3.4MMTZ
$3.3M
Top 20 stock positions. Options are left out: 13F reports them at the underlying's value.
13fpro.ai/research/fund/mariner-investment-group-llc-1096978
MARINER INVESTMENT GROUP LLC 13F holdings — Q2 2026
$513.5M portfolio (-70.6% QoQ) · 124 holdings · Q2 2026 13F · top 10 are 76% of the stock portfolio
Includes $87.2M of put/call options ($23.8M puts, $63.4M calls), which 13F rules report at the value of the underlying shares, not the premium at risk. Stocks alone: $426.3M. Weights use the stock portfolio.
$104.2M
24.4% of stocks
No changeThis quarter+23.0%Since filed1+ qtrsHeld$57.1M
13.4% of stocks
NewThis quarter+3.6%Since filedNew this quarterHeld$35.4M
8.3% of stocks
+20%This quarter-12.8%Since filed1+ qtrsHeld$33.3M
7.8% of stocks
No changeThis quarter-13.2%Since filed1+ qtrsHeld- 5
DOORDASH INC - NOTE 5/1
$24.7M
5.8% of stocks
NewThis quarter—Since filedNew this quarterHeldAIQuality—Est. buy— $22.5M
5.3% of stocks
No changeThis quarter-2.6%Since filed1+ qtrsHeld- 7
RIVIAN AUTOMOTIVE INC - NOTE 3.625%10/1
$16.0M
3.8% of stocks
NewThis quarter—Since filedNew this quarterHeldAIQuality—Est. buy— $12.5M
2.9% of stocks
No changeThis quarter-0.1%Since filed1+ qtrsHeld$11.0M
2.6% of stocks
NewThis quarter-12.7%Since filedNew this quarterHeld- 10
ISHARES TR - 1 3 YR TREAS BD
$8.3M
1.9% of stocks
+33%This quarter—Since filed—HeldAIQuality—Est. buy—
All holdings — MARINER INVESTMENT GROUP LLC (Q2 2026)
124 disclosed positions from the Form 13F-HR on SEC EDGAR, with quarter-over-quarter share changes. Largest by value first; the ten above are not repeated.
| # | Company | Held | Source | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 11 | SPDR S&P 500 ETF TRUST | — | $32.3M | — | 50K | -92% | — | — | 13F | |
| 12 | INVESCO QQQ TRUST, SERIES 1 | — | $19.5M | — | 1.40M | New | — | — | 13F | |
| 13 | — PUT | ISHARES TR - IBOXX INV CP ETF | — | $18.2M | — | 159K | New | — | — | 13F |
| 14 | Live Nation Entertainment, Inc.note | Communication Services | $6.0M | 1.4% | 5.00M | — | 1+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 15 | CHIMERA INVESTMENT CORP | Real Estate | $5.1M | 1.2% | 379K | — | 1+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 16 | — | ISHARES TR - NATIONAL MUN ETFetf/fund | — | $4.9M | 1.1% | 45K | New | — | — | 13F |
| 17 | ENTERGY CORP /DE/ | Utilities | $4.6M | 1.1% | 40K | — | 1+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 18 | — | VANGUARD SCOTTSDALE FDS - SHRT TRM CORP BDetf/fund | — | $4.2M | 1.0% | 53K | +2% | — | — | 13F |
| 19 | LINCOLN ELECTRIC HOLDINGS INC | Industrials | $4.2M | 1.0% | 16K | +162% | 1+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 20 | WILLIAMS COMPANIES, INC. | Energy | $4.1M | 1.0% | 55K | +22% | 1+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 21 | CORNING INC /NY | Materials | $3.6M | 0.8% | 14K | New | 1+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 22 | Shift4 Payments, Inc. | Industrials | $3.4M | 0.8% | 55K | New | 1+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 23 | MASTEC INC | Energy | $3.3M | 0.8% | 8,000 | +33% | 1+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 24 | Grupo Aeromexico, S.A.B. de C.V.adr | Industrials | $3.0M | 0.7% | 169K | — | 1+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 25 | Ferguson Enterprises Inc. /DE/ | Consumer Discretionary | $2.8M | 0.7% | 12K | New | 1+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 26 | — | ISHARES INC - MSCI BRAZIL ETF | — | $2.8M | 0.7% | 80K | New | |||
| 27 | $RWT | REDWOOD TRUST INC | Real Estate | $2.6M | 0.6% | 550K | — | |||
| 28 | $COHR CALL | COHERENT CORP. | Technology | $2.4M | — | 37K | -14% | |||
| 29 | $FOUR | Shift4 Payments, Inc. | Industrials | $2.4M | 0.6% | 50K | -66% | |||
| 30 | — | ISHARES TR - 3 7 YR TREAS BD | — | $2.4M | 0.6% | 21K | +169% | |||
| 31 | $CIEN CALL | CIENA CORP | Technology | $2.1M | — | 36K | New | |||
| 32 | — | ISHARES TR - 7-10 YR TRSY BD | — | $2.1M | 0.5% | 23K | New | |||
| 33 | — | PENNYMAC CORP - NOTE 8.500% 6/0 | — | $2.0M | 0.5% | 2.00M | +100% | |||
| 34 | $MFA | MFA FINANCIAL, INC. | Real Estate | $2.0M | 0.5% | 210K | — | |||
| 35 | $PMT | PennyMac Mortgage Investment Trust | Real Estate | $2.0M | 0.5% | 180K | — | |||
| 36 | — | ISHARES TR - IBOXX HI YD ETF | — | $2.0M | 0.5% | 25K | New | |||
| 37 | $RWT | REDWOOD TRUST INC | Real Estate | $1.8M | 0.4% | 1.80M | — | |||
| 38 | $TOL | Toll Brothers, Inc. | Industrials | $1.6M | 0.4% | 10K | New | |||
| 39 | — | REDFIN CORP - NOTE 0.500% 4/0 | — | $1.6M | 0.4% | 1.65M | — | |||
| 40 | $BHF | Brighthouse Financial, Inc. | Financials | $1.6M | 0.4% | 25K | New | |||
| 41 | — | ISHARES TR - 20 YR TR BD ETF | — | $1.6M | 0.4% | 18K | New | |||
| 42 | $Q CALL | Qnity Electronics, Inc. | Technology | $1.6M | — | 100K | +100% | |||
| 43 | $FIX | COMFORT SYSTEMS USA INC | Industrials | $1.5M | 0.3% | 750 | New | |||
| 44 | $IREN | IREN Ltd | Financials | $1.4M | 0.3% | 30K | New | |||
| 45 | $LUMN | Lumen Technologies, Inc. | Communication Services | $1.3M | 0.3% | 175K | +133% | |||
| 46 | $DX | DYNEX CAPITAL INC | Real Estate | $1.2M | 0.3% | 95K | — | |||
| 47 | $GEV | GE Vernova Inc. | Industrials | $1.2M | 0.3% | 1,000 | New | |||
| 48 | — | ISHARES TR - EXPANDED TECH | — | $1.1M | 0.3% | 13K | — | |||
| 49 | $RRC | RANGE RESOURCES CORP | Energy | $1.1M | 0.3% | 30K | — | |||
| 50 | $ENTG CALL | ENTEGRIS INC | Materials | $1.1M | — | 50K | +100% | |||
| 51 | $EQT | EQT Corp | Energy | $1.1M | 0.3% | 20K | — | |||
| 52 | — PUT | LYONDELLBASELL INDUSTRIES NV - PUT | — | $1.0M | — | 200K | New | |||
| 53 | $GEV CALL | GE Vernova Inc. | Industrials | $846K | — | 10K | New | |||
| 54 | $SABR | Sabre Corp | Technology | $836K | 0.2% | 400K | New | |||
| 55 | $WMT | Walmart Inc. | Consumer Staples | $823K | 0.2% | 7,264 | — | |||
| 56 | $CAT CALL | CATERPILLAR INC | Industrials | $790K | — | 16K | +210% | |||
| 57 | $WIX | Wix.com Ltd. | Technology | $778K | 0.2% | 17K | +90% | |||
| 58 | $KRMN | Karman Holdings Inc. | Industrials | $749K | 0.2% | 15K | +200% | |||
| 59 | $FOUR CALL | Shift4 Payments, Inc. | Industrials | $668K | — | 150K | -17% | |||
| 60 | $OLN PUT | OLIN Corp | Healthcare | $665K | — | 254K | +8% | |||
| 61 | $Q | Qnity Electronics, Inc. | Technology | $653K | 0.1% | 4,000 | New | |||
| 62 | $CORZ | Core Scientific, Inc./tx | Financials | $640K | 0.1% | 25K | +25% | |||
| 63 | $DOW PUT | DOW INC. | Materials | $621K | — | 269K | +31% | |||
| 64 | $CIFR | Cipher Digital Inc. | Financials | $613K | 0.1% | 25K | New | |||
| 65 | $PWR CALL | QUANTA SERVICES, INC. | Industrials | $608K | — | 30K | — | |||
| 66 | $ON | ON SEMICONDUCTOR CORP | Technology | $604K | 0.1% | 500K | -96% | |||
| 67 | $CSCO | CISCO SYSTEMS, INC. | Technology | $587K | 0.1% | 5,000 | New | |||
| 68 | $CCK | CROWN HOLDINGS, INC. | Industrials | $559K | 0.1% | 5,000 | — | |||
| 69 | $AES | AES CORP | Utilities | $513K | 0.1% | 35K | — | |||
| 70 | $SOLS CALL | Solstice Advanced Materials Inc. | Healthcare | $503K | — | 94K | New | |||
| 71 | $CRWV | CoreWeave, Inc. | Technology | $498K | 0.1% | 5,000 | New | |||
| 72 | — PUT | ISHARES TR - IBOXX HI YD ETF | — | $492K | — | 1.90M | -10% | |||
| 73 | $FLEX | FLEX LTD. | Technology | $486K | 0.1% | 3,000 | New | |||
| 74 | $WOLF | WOLFSPEED, INC. | Technology | $483K | 0.1% | 10K | -60% | |||
| 75 | $XPRO.R1575828 | EXPRO GROUP HOLDINGS N.V. | Energy | $443K | 0.1% | 30K | +50% | |||
| 76 | $IHRT | iHeartMedia, Inc. | Communication Services | $438K | 0.1% | 102K | +62% | |||
| 77 | $IVZ PUT | Invesco Ltd. | Financials | $421K | — | 1.42M | +42% | |||
| 78 | $TWOD | TWO HARBORS INVESTMENT CORP. | Real Estate | $407K | 0.1% | 33K | — | |||
| 79 | $MCD | MCDONALDS CORP | Consumer Discretionary | $405K | 0.1% | 1,500 | New | |||
| 80 | — | TPG MTG INVTS TR INC - COM NEW | — | $381K | 0.1% | 48K | — | |||
| 81 | $NE | Noble Corp plc | Energy | $373K | 0.1% | 10K | — | |||
| 82 | $TDS | TELEPHONE & DATA SYSTEMS INC /DE/ | Communication Services | $370K | 0.1% | 10K | +100% | |||
| 83 | $NOK CALL | NOKIA CORP | Technology | $365K | — | 500K | New | |||
| 84 | $PKG | PACKAGING CORP OF AMERICA | Materials | $357K | 0.1% | 1,500 | — | |||
| 85 | $USAR | USA Rare Earth, Inc. | Materials | $324K | 0.1% | 15K | New | |||
| 86 | $APO PUT | Apollo Global Management, Inc. | Financials | $286K | — | 40K | New | |||
| 87 | $AVEX | AEVEX Corp. | Industrials | $283K | 0.1% | 14K | New | |||
| 88 | $SPY PUT | SPDR S&P 500 ETF TRUST | — | $276K | — | 170K | -77% | |||
| 89 | $PMTS | CPI Card Group Inc. | Communication Services | $271K | 0.1% | 13K | -28% | |||
| 90 | $POST PUT | Post Holdings, Inc. | Consumer Staples | $266K | — | 75K | — | |||
| 91 | $TSEM | TOWER SEMICONDUCTOR LTD | Technology | $261K | 0.1% | 1,000 | New | |||
| 92 | $FSK PUT | FS KKR Capital Corp | Other | $258K | — | 700K | — | |||
| 93 | $ENPH | Enphase Energy, Inc. | Technology | $246K | 0.1% | 5,000 | New | |||
| 94 | $HWM CALL | Howmet Aerospace Inc. | Materials | $236K | — | 70K | New | |||
| 95 | $ARES PUT | Ares Management Corp | Financials | $222K | — | 40K | New | |||
| 96 | $AOMD | Angel Oak Mortgage REIT, Inc. | Real Estate | $161K | 0.0% | 18K | — | |||
| 97 | $STM CALL | STMicroelectronics N.V. | Technology | $161K | — | 29K | New | |||
| 98 | $QQQ PUT | INVESCO QQQ TRUST, SERIES 1 | — | $152K | — | 27K | New | |||
| 99 | $LEN PUT | LENNAR CORP /NEW/ | Industrials | $152K | — | 124K | — | |||
| 100 | $OCSL PUT | Oaktree Specialty Lending Corp | Other | $137K | — | 304K | +52% | |||
| 101 | $BXSL PUT | Blackstone Secured Lending Fund | Other | $106K | — | 325K | — | |||
| 102 | $ARCC PUT | ARES CAPITAL CORP | Other | $95K | — | 200K | New | |||
| 103 | $ETN PUT | Eaton Corp plc | Industrials | $95K | — | 18K | New | |||
| 104 | $GBDC PUT | GOLUB CAPITAL BDC, Inc. | Other | $88K | — | 200K | — | |||
| 105 | $IREN CALL | IREN Ltd | Financials | $69K | — | 40K | New | |||
| 106 | — CALL | ISHARES TR - 20 YR TR BD ETF | — | $60K | — | 250K | New | |||
| 107 | $DHI PUT | HORTON D R INC /DE/ | Industrials | $55K | — | 62K | -43% | |||
| 108 | $IBM CALL | INTERNATIONAL BUSINESS MACHINES CORP | Technology | $47K | — | 24K | New | |||
| 109 | — PUT | SELECT SECTOR SPDR TR - ST STR ENERG ETF | — | $40K | — | 100K | New | |||
| 110 | $WMB CALL | WILLIAMS COMPANIES, INC. | Energy | $39K | — | 50K | — | |||
| 111 | $ALB CALL | ALBEMARLE CORP | Materials | $27K | — | 40K | New | |||
| 112 | — PUT | ISHARES TR - US AER DEF ETF | — | $26K | — | 10K | — | |||
| 113 | $USO PUT | United States Oil Fund, LP | Financials | $25K | — | 20K | New | |||
| 114 | $PHM PUT | PULTEGROUP INC/MI/ | Industrials | $23K | — | 34K | — | |||
| 115 | — | BLEICHROEDER ACQUISITI CORP - *W EXP 12/23/203 | — | $22K | 0.0% | 10K | New | |||
| 116 | $KRMN CALL | Karman Holdings Inc. | Industrials | $17K | — | 18K | New | |||
| 117 | $CARR PUT | CARRIER GLOBAL Corp | Industrials | $16K | — | 50K | -33% | |||
| 118 | $FOUR PUT | Shift4 Payments, Inc. | Industrials | $15K | — | 50K | -66% | |||
| 119 | $IP PUT | INTERNATIONAL PAPER CO /NEW/ | Materials | $14K | — | 50K | -50% | |||
| 120 | — PUT | SPDR SERIES TRUST - ST STR SP REGBNK | — | $12K | — | 20K | — | |||
| 121 | $PAAS CALL | PAN AMERICAN SILVER CORP | Materials | $6K | — | 25K | — | |||
| 122 | — | BOREALIS FOODS INC - *W EXP 02/07/202 | — | $1K | 0.0% | 23K | — | |||
| 123 | $CYCU | Cycurion, Inc. | Technology | $525 | 0.0% | 30K | — | |||
| 124 | $GLW CALL | CORNING INC /NY | Materials | $0 | — | 0 | -100% |
What changed in Q2 2026
Against the previous quarter's 13F: 49 new, 22 added to, 14 trimmed, 32 sold out. Share-count changes; largest moves by dollar size first.
New positions (49)
first bought this quarter
- DOORDASH INC - NOTE 5/1$24.7M
first bought this quarter
$QQQCALLINVESCO QQQ TRUST, SERIES 1$19.5M
first bought this quarter
- PUTISHARES TR - IBOXX INV CP ETF$18.2M
first bought this quarter
- RIVIAN AUTOMOTIVE INC - NOTE 3.625%10/1$16.0M
first bought this quarter
first bought this quarter
+43 more in the Excel export
Added to (22)
now $35.4M · held 1+ qtrs
now $4.2M · held 1+ qtrs
- ISHARES TR - 1 3 YR TREAS BD+33%
now $8.3M
- ISHARES TR - 3 7 YR TREAS BD+169%
now $2.4M
- PENNYMAC CORP - NOTE 8.500% 6/0+100%
now $2.0M
now $3.3M · held 1+ qtrs
+16 more in the Excel export
Trimmed (14)
now $32.3M
$ONON SEMICONDUCTOR CORP-96%
now $604K · held 1+ qtrs
now $276K
$WOLFWOLFSPEED, INC.-60%
now $483K · held 1+ qtrs
$COHRCALLCOHERENT CORP.-14%
now $2.4M
now $668K
+8 more in the Excel export
Sold out (32)
$USOCALLUnited States Oil Fund, LPwas $26.0M
$SNOWSnowflake Inc.was $17.7M
held 3+ qtrs
$CATCATERPILLAR INCwas $2.7M
held 1+ qtrs
$SOLSSolstice Advanced Materials Inc.was $1.1M
held 1+ qtrs
$LGNLegence Corp.was $847K
held 2+ qtrs
$MCHPMICROCHIP TECHNOLOGY INCwas $840K
+26 more in the Excel export
Holdings by quarter
Every 13F MARINER INVESTMENT GROUP LLC has filed, 42 earlier quarters. Pick one to see what it held then.
Is it too late to follow MARINER INVESTMENT GROUP?
Q2 2026 13F filed with the SEC on Jul 27, 2026. Prices are closing prices as of Oct 26, 2026.
Average quality of MARINER INVESTMENT GROUP's top 20 holdings: 53/100 (our AI quality score, weighted by position size; 13 of the 20 are scored)
Top 10 since filing
+4.0%
Value-weighted move of the 10 largest stock positions
Turnover
—
Last quarter
Top 10 weight
76%
Share of the stock portfolio in its 10 largest positions
Held 4+ quarters
0%
Share of portfolio value in positions held a year or more
Highest-quality names it owns(among its 100 largest positions)
The 8 highest-scoring companies in this portfolio are a Pro feature.
How these are measured
- Moves since the quarter-end and since the filing date use our own daily closing prices, from the close on (or just before) each date to the latest close.
- Turnover is the lesser of shares bought or sold in a quarter, valued at the quarter-end prices in the 13F, divided by the average of the two quarters' stock portfolio values.
- Quarters held and add/trim streaks count back only through quarters whose filed holdings add up to the filing's own cover-page total (back to Q2 2026 for this fund). A change counts as an add or a trim when the split-adjusted share count moves by more than 1%.
- Estimate, not the fund's reported cost. For each quarter in the current holding period in which the fund's share count rose (split-adjusted), we take that quarter's average daily close and weight it by the shares added; sales do not change an average cost. Quarters where the stock's price history and the 13F's own implied price disagree by more than 2x are left out.
- Put and call option rows report the value of the underlying shares, not a position the fund paid for, so they are left out of all of the above.
Portfolio Overview
MARINER INVESTMENT GROUP LLC disclosed 124 positions worth $513.5M in its Form 13F-HR for Q2 2026 — $426.3M in common stock plus $87.2M of put/call option positions (reported at underlying notional value, not premium at risk), led by $IBIT (iShares Bitcoin Trust ETF) at 24.4% of the equity portfolio, followed by $SPY and $BABA. During the quarter the fund opened 49 new positions and exited 32 — including a new stake in $SPY and a full exit from $USO. The portfolio is most concentrated in Other (30.8% of disclosed assets). All figures are sourced directly from MARINER INVESTMENT GROUP LLC’s Form 13F-HR filing with the SEC under CIK 1096978.
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Every holding in MARINER INVESTMENT GROUP LLC's portfolio is scored on an AI quality ranking built from its SEC filings (ROIC, FCF margin, revenue growth, institutional flow, earnings quality, shareholder dilution, and more). Track accumulation and distribution quarter over quarter, identify conviction positions, and see AI stock analysis for each position — alongside 8,700+ other institutional filers and 2,800+ AI-ranked companies.