MAD RIVER INVESTORS — 13F Holdings

2026 Q1  ·  35 Positions

2026 Q1 Portfolio Activity

In 2026 Q1, MAD RIVER INVESTORS maintained a portfolio of 35 distinct positions. They heavily accumulated shares in HAWAIIAN ELEC INDS INC MTN B, increasing the position by 9175.0%. The fund also reduced its exposure to HAWAIIAN ELEC INDUSTRIES by 96.3%.
Position History hover any row below to update
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MAD RIVER INVESTORS Boston, MA Hedge Fund / Asset Manager AUM $277M
PCA Score Concentration Risk
Risk ENB
Total Positions
35
Quarter
2026 Q1
Top Holding
TPL (48.7%)
Top 10 Concentration
91.0%
Turnover Rate
23.4%
Sector HHI
0.18
Items per page:
Showing 1-35 of 35

MAD RIVER INVESTORS Full Holdings List — 2026 Q1

Stock History Sector / Type Port % Prev % Rank / Prev Conviction
Freshness
Change % Change Influence Shares Mkt Value Avg Cost Price Held 1st Owned Source Source Date Date Reported
TPL
TEXAS PACIFIC L...
Energy 48.69% 37.41% #1
Prev: #1
6.5
-963 -0.3%
P
S
285,120 $135,306,578 2013 Q2 13F Filing 2026-03-31 2026-04-23
PBT
PERMIAN BASIN R...
Bond/Debt 7.77% 7.63% #2 1
Prev: #3
5.1
16,321 1.7%
P
S
1,003,140 $21,587,576 2022 Q1 13F Filing 2026-03-31 2026-04-23
HE
HAWAIIAN ELEC I...
Utilities 7.03% 7.19% #3 1
Prev: #4
4.3
32,900 2.6%
P
S
1,317,050 $19,545,022 2024 Q4 13F Filing 2026-03-31 2026-04-23
GBTC
GRAYSCALE BITCO...
ETF 6.84% 11.22% #4 2
Prev: #2
3.7
-315 -0.1%
P
S
360,139 $19,000,934 2024 Q1 13F Filing 2026-03-31 2026-04-23
LB
LANDBRIDGE COMP...
Energy 6.62% 5.87% #5
Prev: #5
3.6
3,451 1.3%
P
S
266,385 $18,393,886 2024 Q3 13F Filing 2026-03-31 2026-04-23
WPM
WHEATON PRECIOU...
Basic Materials 4.21% 5.22% #6
Prev: #6
2.2
-8,333 -8.5%
P
S
89,271 $11,695,382 2017 Q2 13F Filing 2026-03-31 2026-04-23
MSB
MESABI TR
Bond/Debt 3.65% 5.20% #7
Prev: #7
3.5
24,897 8.4%
P
S
321,546 $10,128,689 2020 Q3 13F Filing 2026-03-31 2026-04-23
WB
WATERBRIDGE INF...
Communication Services 2.61% 2.34% #8 1
Prev: #9
3.0
13,900 5.4%
P
S
270,900 $7,257,419 2025 Q3 13F Filing 2026-03-31 2026-04-23
FNV
FRANCO NEV CORP
Basic Materials 2.10% 2.23% #9 1
Prev: #10
1.3
-4 -0.0%
P
S
23,590 $5,827,962 2011 Q3 13F Filing 2026-03-31 2026-04-23
FBTC
FIDELITY WISE O...
Unknown 1.49% 2.46% #10 2
Prev: #8
1.1
-520 -0.7%
P
S
70,339 $4,152,084 2024 Q1 13F Filing 2026-03-31 2026-04-23
CCL
CARNIVAL CORP
Consumer Cyclical 1.45% 2.16% #11
Prev: #11
1.1
585 0.4%
P
S
156,181 $4,041,952 2023 Q1 13F Filing 2026-03-31 2026-04-23
MIAX
MIAMI INTL HLDG...
Financial Services 1.14% 1.52% #12 1
Prev: #13
2.5
6,200 8.3%
P
S
81,250 $3,162,250 2025 Q3 13F Filing 2026-03-31 2026-04-23
VTI
VANGUARD INDEX ...
ETF 1.02% 1.85% #13 1
Prev: #12
0.4
-3,322 -27.4%
P
S
8,800 $2,823,128 2023 Q2 13F Filing 2026-03-31 2026-04-23
BTC
GRAYSCALE BITCO...
Unknown 0.88% 1.37% #14
Prev: #14
0.9
3,570 4.6%
P
S
81,217 $2,435,698 2024 Q3 13F Filing 2026-03-31 2026-04-23
CBOE
CBOE GLOBAL MKT...
Financial Services 0.68% 0.76% #15
Prev: #15
0.8
-10 -0.1%
P
S
6,680 $1,877,451 2010 Q4 13F Filing 2026-03-31 2026-04-23
AAPL
APPLE INC
Technology 0.47% 0.63% #16 1
Prev: #17
1.2
no change no change
P
S
5,100 $1,294,329 2025 Q3 13F Filing 2026-03-31 2026-04-23
ICE
INTERCONTINENTA...
Financial Services 0.43% 0.56% #17 1
Prev: #18
1.2
no change no change
P
S
7,645 $1,202,469 2006 Q4 13F Filing 2026-03-31 2026-04-23
ORCL
ORACLE CORP
Technology 0.43% 0.71% #18 2
Prev: #16
1.2
no change no change
P
S
8,050 $1,184,236 2025 Q3 13F Filing 2026-03-31 2026-04-23
PANW
PALO ALTO NETWO...
Technology 0.32% 0.46% #19
Prev: #19
1.1
no change no change
P
S
5,484 $879,195 2025 Q3 13F Filing 2026-03-31 2026-04-23
AMZN
AMAZON COM INC
Consumer Cyclical 0.26% 0.37% #20
Prev: #20
1.1
no change no change
P
S
3,500 $728,945 2025 Q3 13F Filing 2026-03-31 2026-04-23
HE
HAWAIIAN ELEC I...
CALL
CALL Option 0.25% 0.08% #21 14
Prev: #35
3.1
32,700 230.3%
P
S
46,900 $695,996 2024 Q4 13F Filing 2026-03-31 2026-04-23
RGLD
ROYAL GOLD INC
Basic Materials 0.23% 0.27% #22 1
Prev: #21
0.6
-193 -7.3%
P
S
2,463 $626,812 2025 Q4 13F Filing 2026-03-31 2026-04-23
CINF
CINCINNATI FINL...
Financial Services 0.20% 0.27% #23 1
Prev: #22
1.1
no change no change
P
S
3,600 $566,460 2025 Q3 13F Filing 2026-03-31 2026-04-23
CSCO
CISCO SYS INC
Technology 0.17% 0.21% #24 2
Prev: #26
1.1
no change no change
P
S
6,000 $465,540 2006 Q4 13F Filing 2026-03-31 2026-04-23
UNH
UNITEDHEALTH GR...
Healthcare 0.17% 0.26% #25 1
Prev: #24
1.1
no change no change
P
S
1,700 $460,003 2018 Q1 13F Filing 2026-03-31 2026-04-23
CACI
CACI INTL INC
Technology 0.16% 0.20% #26 2
Prev: #28
1.1
no change no change
P
S
805 $437,816 2018 Q2 13F Filing 2026-03-31 2026-04-23
ETN
EATON CORP PLC
Industrials 0.15% 0.17% #27 2
Prev: #29
1.1
no change no change
P
S
1,200 $429,204 2025 Q3 13F Filing 2026-03-31 2026-04-23
JPM
JPMORGAN CHASE ...
Financial Services 0.15% 0.21% #28 1
Prev: #27
0.6
17 1.2%
P
S
1,417 $416,825 2008 Q2 13F Filing 2026-03-31 2026-04-23
BRK/B
BERKSHIRE HATHA...
Financial Services 0.14% 0.26% #29 6
Prev: #23
0.1
-300 -26.7%
P
S
825 $395,340 2010 Q1 13F Filing 2026-03-31 2026-04-23
RLI
RLI CORP
Financial Services 0.12% 0.22% #30 5
Prev: #25
0.0
-1,500 -20.0%
P
S
6,000 $342,240 2015 Q3 13F Filing 2026-03-31 2026-04-23
JNJ
JOHNSON & JOHNS...
Healthcare 0.11% 0.11% #31 3
Prev: #34
1.0
no change no change
P
S
1,200 $293,328 2015 Q3 13F Filing 2026-03-31 2026-04-23
VIG
VANGUARD SPECIA...
ETF 0.08% 0.16% #32 2
Prev: #30
0.0
-600 -37.5%
P
S
1,000 $215,060 2023 Q2 13F Filing 2026-03-31 2026-04-23
KMB
KIMBERLY-CLARK ...
Consumer Defensive 0.00% 0.13%
Sold All 😨
(Was: #33)
0.0
-2,800 -100.0%
CLOSED
$— 2025 Q3 13F Filing 2026-03-31 2026-04-23
RSP
INVESCO EXCHANG...
Unknown 0.00% 0.13%
Sold All 😨
(Was: #32)
0.0
-1,508 -100.0%
CLOSED
$— 2023 Q2 13F Filing 2026-03-31 2026-04-23
C
CITIGROUP INC
Financial Services 0.00% 0.16%
Sold All 😨
(Was: #31)
0.0
-3,000 -100.0%
CLOSED
$— 2025 Q3 13F Filing 2026-03-31 2026-04-23
Showing 1-35 of 35 holdings

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