Arkolith/Investors/Howard Marks
H

Howard Marks

Hedge fund

Co-founder and Co-chairman of Oaktree Capital Management.

Howard Marks runs Oaktree Capital Management LP, a focused book of 142 stocks worth $5.9B as of Q1 2026 (disclosed May 20, 2026, a ~50-day 13F lag). This quarter they opened Indivior Pharmaceuticals Inc and trimmed Torm PLC-A. Their largest long position is Torm PLC-A at 11% of the equity book. They also disclosed $551.1M in put options (a bearish bet) and $100.2M in call options (bullish), shown separately below and excluded from the equity book.

Holdings as of Mar 31, 2026·disclosed May 20, 2026·~50-day 13F lag·13F-HR/AAmended
Opened
32
bought for the first time
Added to
37
already held, bought more
Trimmed
50
sold some, still holds it
Sold out
54
exited the position entirely

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Concentration

Top-heavy: focused book

Top 5 holdings
35%
Top 10 holdings
47%
Top 20 holdings
63%

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

Direct sector allocation

66% mapped to company sectors

ETF / fund or unclassified
34%
Energy
16%
Industrials
13%
Materials
10%
Communication Services
8%
Financials
6%
Consumer Discretionary
4%
Utilities
3%

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
Trimmed / exited

Top holdings

142 companies · Q1 2026

Top 25
#Stock% of bookValueSharesLast move
1Torm PLC-ATRMD
11.4%
$675.1M23.8M
−9.8%
Reduced · −2.6M sh
2Expand Energy CorpEXE
9.7%
$575.0M5.2M
+3.5%
Added · +175K sh
3Anglogold Ashanti PLCAU
5.3%
$313.8M3.2M
−16%
Reduced · −625K sh
4Garrett Motion IncGTX
4.5%
$265.2M14.6M
−15%
Reduced · −2.5M sh
5Indivior Pharmaceuticals Inc
3.6%
$212.9M7.0M
New
+7.0M sh
6Telephone And Data SystemsTDS
3.1%
$180.7M4.3M
+16%
Added · +604K sh
7Viper Energy Inc-CL AVNOM
3.0%
$178.2M3.8M
−40%
Reduced · −2.5M sh
8Core Scientific IncCORZ
2.4%
$139.9M9.4M
+12%
Added · +1.0M sh
9Sunopta IncSTKL
2.3%
$134.2M20.7M
Held
10Petroleo Brasileiro-Spon ADRPBR
2.1%
$126.4M6.1M
New
+6.1M sh
11Barrick Mining CorpB
1.8%
$107.1M2.6M
−12%
Reduced · −350K sh
12Talen Energy CorpTLN
1.8%
$105.7M331K
Held
13Liberty Global Ltd-ALBTYA
1.8%
$103.4M8.6M
Held
14Itau Unibanco H-Spon PRF ADRITUB
1.7%
$102.1M12.2M
−12%
Reduced · −1.6M sh
15Jetblue Airways CorpJBLU 0.5 04/01/26
1.6%
$94.8M95.1M
+5.0%
Added · +4.6M sh
16Riot Platforms IncRIOT 0.75 01/15/30
1.6%
$91.8M79.7M
−2.8%
Reduced · −2.3M sh
17Nokia Corp-Spon ADRNOK
1.5%
$90.1M11.2M
−40%
Reduced · −7.6M sh
18Transalta CorpTAC
1.4%
$84.1M6.4M
Held
19CBL & Associates PropertiesCBL
1.4%
$82.8M2.2M
−14%
Reduced · −364K sh
20Freeport-McMoran IncFCX
1.2%
$71.7M1.2M
−12%
Reduced · −170K sh
21Echostar CorpSATS 3.875 11/30/30
1.1%
$64.3M18.0M
~0%
Added · +1 sh
22XP Inc - Class AXP
1.0%
$60.4M3.2M
−4.5%
Reduced · −148K sh
23Pebblebrook Hotel TrustPEB 1.75 12/15/26
1.0%
$56.4M57.7M
+45%
Added · +18.0M sh
24American Water Capital CAWK 3.625 06/15/26
0.9%
$55.8M55.9M
16×
Added · +52.5M sh
25Grupo Aeromexico SAB De CVAERO
0.9%
$55.6M4.0M
+5.1%
Added · +192K sh

Largest options & derivatives disclosed

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

Put notional (bearish)$551.1M
Call notional (bullish)$100.2M
TypeUnderlyingNotional valueUnderlying shares
PUT · bearishInvesco QQQ Trust Series 1QQQ$329.0M570K
PUT · bearishSS SPDR S&P Og Exp & ProdXOP$181.8M1.0M
CALL · bullishCore Scientific IncCORZ$52.4M3.5M
CALL · bullishTalen Energy CorpTLN$47.9M150K
PUT · bearishLyondellbasell Indu-CL ALYB$40.3M500K

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.

Funds

1 vehicle

Fund
Long book

Aggregated from SEC Form 13F filings (institutional long equity positions, reported quarterly, up to 45 days after quarter-end). Holdings are public domain, sourced to SEC EDGAR. The book totals, weighting, concentration and sectors are long equity only; disclosed put/call options are listed separately and excluded from those figures. Price-derived performance is withheld until the price-source policy and freshness gate are green. Every panel is one call to the Arkolith API & MCP server.