Arkolith/Funds/Bluefin Capital Management, LLC

Bluefin Capital Management, LLC

CIK 1144208
Holdings as of Mar 31, 2026·disclosed May 15, 2026·~45-day 13F lag·13F-HR
Active Filer

Bluefin Capital Management, LLC holds a focused book of 73 stocks worth $103.2M as of Q1 2026 (disclosed May 15, 2026, a ~45-day 13F lag). This quarter they opened EA SERIES TRUST and trimmed COREWEAVE INC. Their largest long position is COREWEAVE INC at 21% of the equity book. They also disclosed $20.2M in put options (a bearish bet) and $32.5M in call options (bullish), shown separately below and excluded from the equity book.

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Use Arkolith to show BLUEFIN CAPITAL MANAGEMENT, LLC's latest
holdings, largest changes, and filing provenance.
Opened
33
new positions
Added to
12
existing
Trimmed
26
reduced
Sold out
73
exited

Concentration

Top-heavy: focused book

Top 5 holdings
52%
Top 10 holdings
63%
Top 20 holdings
80%

Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.

Direct sector allocation

11% mapped to company sectors

ETF / fund or unclassified
89%
Health Care
3%
Utilities
2%
Industrials
2%
Materials
1%
Financials
1%
Real Estate
1%
Communication Services
1%

Direct operating-company sectors from our SIC-based security master. ETF/fund and unclassified holdings stay visible separately; this is not ETF look-through exposure.

Biggest moves: latest quarter

Estimated $ traded · quarter-end prices, no cost basis

Bought
  • EA SERIES TRUST
    ▲New$10.5M
  • SPDR SERIES TRUST
    ▲+835%$8.6M
  • PLAINS ALL AMER PIPELINE LPPAA
    ▲New$2.1M
  • CITIGROUP INC
    ▲Added$2.0M
  • CALIFORNIA RES CORP
    ▲New$1.6M
  • RIOT PLATFORMS INC
    ▲New$1.6M
Trimmed / exited
  • COREWEAVE INC
    ▼−73%$56.9M
  • SS SPDR S&P 500 ETF TRUST-USSPY
    ▼−85%$40.6M
  • CHIPOTLE MEXICAN GRILL INC
    ▼−97%$24.6M
  • INVESCO QQQ TR
    ▼−91%$23.7M
  • BRISTOL-MYERS SQUIBB CO
    ▼−89%$5.3M
  • VALE SA-SP ADRVALE
    ▼−90%$3.3M

Holdings: largest first

Bars show each stock's share of the portfolio. Click a row for its position history.

76 positions
#SecurityValueShares% PortLast moveHistory
1Coreweave Inc
COM CL A
$21.3M275.3K
20.7%
▼−73%
Reduced · −735K sh
2Ea Series Trust
ALPHA ARCH 1-3
$10.5M90.0K
10.1%
▲New
New position
3SPDR Series Trust
STATE STREET SPD
$9.6M104.7K
9.3%
▲New
New position
4State STR SPDR S&P 500 ETF T
TR UNIT
$7.2M11.1K
7.0%
▼−85%
Reduced · −62K sh
5SPDR Gold TR
GOLD SHS
$5.2M12.0K
5.0%
▼−1.6%
Reduced · −200 sh
6Cogent Comm Holdings Inc
COM NEW
$2.5M132.3K
2.4%
▼−16%
Reduced · −26K sh
7Core Scientific Inc New
*W EXP 01/23/202
$2.4M272.4K
2.3%
▲+67%
Added · +109K sh
8Cohen & Steers Infrastructur
COM
$2.4M91.7K
2.3%
▼−9.0%
Reduced · −9K sh
9Invesco QQQ TR
UNIT SER 1
$2.3M4.0K
2.2%
▼−91%
Reduced · −41K sh
10Energy Transfer L P
COM UT LTD PTN
$2.2M114.1K
2.1%
▼−50%
Reduced · −114K sh
11United Parcel Svcs Inc
CL B
$2.2M22.0K
2.1%
▼−3.9%
Reduced · −900 sh
12Plains All Amern Pipeline L
UNIT LTD PARTN
$2.1M92.1K
2.0%
▲New
New position
13Citigroup Inc
COM NEW
$2.0M17.2K
1.9%
▲Added
Added · +17K sh
14Disney Walt Co
COM
$1.7M18.1K
1.7%
▲+311%
Added · +14K sh
15California Res Corp
COM STOCK
$1.6M23.3K
1.6%
▲New
New position
16Riot Platforms Inc
COM
$1.6M129.9K
1.6%
▲New
New position
17Ishares TR
PFD AND INCM SEC
$1.5M49.2K
1.4%
▲New
New position
18International Business Machs
COM
$1.4M6.0K
1.4%
▲+498%
Added · +5K sh
19Wendys Co
COM
$1.3M193.7K
1.3%
▲New
New position
20Unitedhealth Group Inc
COM
$1.3M4.7K
1.2%
▲New
New position
21Pfizer Inc
COM
$1.1M39.8K
1.1%
▼−45%
Reduced · −33K sh
22Rio Tinto PLC
SPONSORED ADR
$961K10.3K
0.9%
▲New
New position
23Vaneck ETF Trust
JUNIOR GOLD MINE
$924K7.7K
0.9%
▲+54%
Added · +3K sh
24Micron Technology Inc
COM
$906K2.7K
0.9%
▲New
New position
25Chipotle Mexican Grill Inc
COM
$874K27.3K
0.8%
▼−97%
Reduced · −768K sh
26Atkore Inc
COM
$866K14.7K
0.8%
▲New
New position
27Integer Hldgs Corp
COM
$734K8.3K
0.7%
▲New
New position
28Jetblue Airways Corp
COM
$707K160.0K
0.7%
▲New
New position
29Circle Internet Group Inc
COM CL A
$677K7.1K
0.7%
▲New
New position
30Alphabet Inc
CAP STK CL A
$643K2.2K
0.6%
▼−60%
Reduced · −3K sh
31Taiwan Semiconductor Manufac
SPONSORED ADS
$639K1.9K
0.6%
▼−67%
Reduced · −4K sh
32Bristol-Myers Squibb Co
COM
$625K10.3K
0.6%
▼−89%
Reduced · −87K sh
33Mbia Inc
COM
$573K97.0K
0.6%
▲+41%
Added · +28K sh
34Vaneck ETF Trust
GOLD MINERS ETF
$514K5.6K
0.5%
▲Added
Added · +6K sh
35Greystone Housing Impact Inv
BEN UNIT CTF
$508K103.2K
0.5%
—Held
36Merck & Co Inc
COM
$481K4.0K
0.5%
▲New
New position
37Clearwater Analytics Hldgs I
CL A
$473K20.0K
0.5%
—Held
38Bill Holdings Inc
COM
$437K11.4K
0.4%
▲New
New position
39Echostar Corp
CL A
$410K3.5K
0.4%
▲+17%
Added · +500 sh
40Gold Fields Ltd
SPONSORED ADR
$409K9.0K
0.4%
▲New
New position
41Brighthouse Finl Inc
COM
$395K6.6K
0.4%
▲New
New position
42Rocket Lab Corp
COM
$385K6.0K
0.4%
▲New
New position
43Aes Corp
COM
$369K26.2K
0.4%
▲New
New position
44Ast Spacemobile Inc
COM CL A
$365K4.4K
0.4%
▲New
New position
45Vale S A
SPONSORED ADS
$363K22.8K
0.4%
▼−90%
Reduced · −204K sh
46Versant Media Group Inc
COM CL A
$358K9.7K
0.3%
▲New
New position
47Sandisk Corp
COM
$357K562
0.3%
▲New
New position
48Progressive Corp
COM
$357K1.8K
0.3%
▼−79%
Reduced · −7K sh
49Cme Group Inc
COM
$325K1.1K
0.3%
▲New
New position
50Oaktree Specialty Lending
COM
$288K25.5K
0.3%
▼−0.4%
Reduced · −100 sh
Showing 50 of 76 positions

Largest options & derivatives disclosed

Put / call positions from the 13F — totals include every disclosed option leg

Put notional (bearish)$20.2M
Call notional (bullish)$32.5M
TypeUnderlyingNotional valueUnderlying shares
CALL · bullishCOREWEAVE INC$18.5M1.8M
CALL · bullishLENDINGCLUB CORPLC$9.9M195K
PUT · bearishLENDINGCLUB CORPLC$9.7M195K
PUT · bearishCOREWEAVE INC$4.8M1.2M
CALL · bullishELECTRONIC ARTS INC$2.0M317K
PUT · bearishWARNER BROS DISCOVERY INC$1.4M2.4M
PUT · bearishSS SPDR S&P 500 ETF TRUST-USSPY$1.2M113K
PUT · bearishSOUTHERN CO$1.0M335K
PUT · bearishEVERSOURCE ENERGYES$880K4K
CALL · bullishWARNER BROS DISCOVERY INC$753K1.5M
PUT · bearishINVESCO QQQ TR$669K45K
CALL · bullishSPDR GOLD TR$478K40K
CALL · bullishSS SPDR S&P 500 ETF TRUST-USSPY$267K266K
CALL · bullishCORE SCIENTIFIC INC NEW$231K40K
PUT · bearishELECTRONIC ARTS INC$153K359K
PUT · bearishSPDR GOLD TR$147K25K
PUT · bearishISHARES MSCI SOUTH KOREA ETFEWY$97K20K
PUT · bearishWENDYS CO$69K462K
CALL · bullishISHARES MSCI SOUTH KOREA ETFEWY$65K20K
PUT · bearishCOGENT COMM HOLDINGS INC$62K32K
CALL · bullishCOGENT COMM HOLDINGS INC$58K524K
CALL · bullishVANECK ETF TRUST$58K10K
CALL · bullishRIOT PLATFORMS INC$41K140K
PUT · bearishPARAMOUNT SKYDANCE CL BPSKY$37K10K
CALL · bullishALPHABET INC$30K124K

13F filers disclose option positions at the market value of the underlying the contracts reference, not the premium paid. A put is a bearish bet (it gains if the stock falls); a call is bullish. “Underlying shares” is the share count the contracts control, not a share holding. These legs are excluded from the equity book, weighting, concentration and sector figures above. Showing the largest 25 of 44 option legs.

Filing history

As-of date vs the date the SEC received each filing

QuarterAs ofFiledPositionsValueForm
Q1 2026Mar 31, 2026May 15, 2026127$155.9M13F-HR
Q4 2025Dec 31, 2025Apr 29, 2026198$403.8M13F-HR
Q3 2025Sep 30, 2025Apr 29, 202691$312.5M13F-HR
Q2 2025Jun 30, 2025Aug 14, 2025140$132.6M13F-HR
Q1 2025Mar 31, 2025May 21, 2025106$138.6M13F-HR
Q3 2024Sep 30, 2024Nov 14, 2024123$330.9M13F-HR
Q2 2024Jun 30, 2024Sep 10, 2024110$420.0M13F-HR
Q1 2024Mar 31, 2024May 20, 2024139$644.7M13F-HR/A
Q4 2023Dec 31, 2023Feb 16, 2024251$1.2B13F-HR
Q3 2023Sep 30, 2023Nov 14, 2023194$1.2B13F-HR
Q2 2023Jun 30, 2023Sep 11, 2023168$523.7M13F-HR/A
Q1 2023Mar 31, 2023May 15, 2023230$804.3M13F-HR
Q4 2022Dec 31, 2022Feb 14, 2023497$672.9M13F-HR
Q3 2022Sep 30, 2022Nov 14, 2022571$1.1B13F-HR
Q2 2022Jun 30, 2022Aug 15, 2022596$904.4M13F-HR
Q1 2022Mar 31, 2022May 16, 2022669$1.1B13F-HR
Q4 2021Dec 31, 2021Feb 14, 2022952$1.4B13F-HR
Q3 2021Sep 30, 2021Nov 15, 2021754$1.0B13F-HR
Q2 2021Jun 30, 2021Aug 18, 2021685$1.6B13F-HR/A
Q1 2021Mar 31, 2021May 17, 2021766$2.1B13F-HR
Q4 2020Dec 31, 2020Feb 10, 2021702$1.7B13F-HR
Amended / restated
  • Q1 2024 · filed May 15, 202413F-HR · superseded
  • Q2 2023 · filed Aug 14, 202313F-HR · superseded
  • Q2 2021 · filed Aug 16, 202113F-HR · superseded

Data source

Holdings from SEC EDGAR 13F-HR filings, updated quarterly ~45 days after quarter-end. Public domain. The book and weighting are long equity only; disclosed put/call options are listed separately and excluded from those totals. The performance line is a simulation of the disclosed long book, not an audited return.