Arkolith/Funds/ION Fund Management Ltd

ION Fund Management Ltd

CIK 2105906
Holdings as of Mar 31, 2026·disclosed May 15, 2026·~45-day 13F lag·13F-HR
Active Filer

ION Fund Management Ltd holds a focused book of 59 stocks worth $655.7M as of Q1 2026 (disclosed May 15, 2026, a ~45-day 13F lag). This quarter they opened Ultra Clean Holdings Inc and trimmed Teva Pharmaceutical-SP ADR. Their largest long position is Teva Pharmaceutical-SP ADR at 18% of the equity book. They also disclosed $11.4M in put options (a bearish bet) and $39.6M in call options (bullish), shown separately below and excluded from the equity book. Cloning the disclosed picks since 2026 would be +15% (+34.8%/yr). That is a simulation of the disclosed long book, not audited returns.

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Use Arkolith to show ION Fund Management Ltd's latest
holdings, largest changes, and filing provenance.
Opened
15
new positions
Added to
12
existing
Trimmed
16
reduced
Sold out
15
exited

Growth of $10,000: cloning the disclosed book

If you'd copied them
+14.9%
+34.8%/yr · since Feb '26
Their reported book
+18.6%
held from quarter-end
S&P 500
+13.3%
same window
$9K$10K$10K$11K$12KFeb '26Mar '26Apr '26May '26Jul '26Aug '26
ION Fund Management Ltd (copied at disclosure) S&P 500

The reported book (valued from quarter-end) returned +18.6%, a 3.6-point gap that is the cost of the ~45-day 13F disclosure lag a real follower can't avoid.

Growth of $10,000 cloning ION Fund Management Ltd's disclosed long 13F book, rebalanced on each filing date (so it reflects each quarter's actual reporting lag, ~45 days for the latest filing, with no look-ahead), total-return basis (dividends reinvested), derived from end-of-day prices. “Their reported book” values the same picks from quarter-end, before they were public. S&P 500 is SPY total return over the same window. Excludes shorts, cash, options and non-13F holdings. Not investment advice.

Concentration

Top-heavy: focused book

Top 5 holdings
50%
Top 10 holdings
72%
Top 20 holdings
91%

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

Direct sector allocation

99% mapped to company sectors

Health Care
28%
Information Technology
22%
Industrials
19%
Energy
16%
Consumer Discretionary
6%
Materials
6%
Communication Services
2%
Financials
2%

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

Funds with the most overlap

Other tracked managers holding the same core names as ION Fund Management Ltd

Manager / fundShared namesTheir $ in those
MORGAN STANLEY74 / 59$154.5B
BANK OF AMERICA CORP /DE/74 / 59$95.4B
GOLDMAN SACHS GROUP INC74 / 59$70.5B
UBS Group AG74 / 59$44.2B
WELLS FARGO & COMPANY/MN74 / 59$36.2B
CITIGROUP INC74 / 59$16.6B
OSAIC HOLDINGS, INC.74 / 59$3.6B
Farther Finance Advisors, LLC74 / 59$419.2M

Ranked by how many of ION Fund Management Ltd's top 59 disclosed names each fund also holds: a cross-fund conviction signal from the latest 13F of every tracked manager.

Holdings: largest first

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

59 positions
#SecurityValueShares% PortLast moveHistory
1Teva Pharmaceutical Inds LT
D SPONSORED ADS
$116.2M3.86M
17.7%
−4.7%
Reduced · −191K sh
2Delek US Hldgs Inc New
COM
$61.7M1.37M
9.4%
−22%
Reduced · −398K sh
3Solaredge Technologies Inc
COM
$56.3M1.10M
8.6%
+39%
Added · +308K sh
4Illumina Inc
COM
$48.1M390.2K
7.3%
+18%
Added · +58K sh
5Danaos Corporation
SHS
$42.9M381.1K
6.5%
−9.2%
Reduced · −39K sh
6Phinia Inc
COMMON STOCK
$34.9M510.0K
5.3%
−1.0%
Reduced · −5K sh
7Nexgen Energy Ltd
COM
$30.4M2.62M
4.6%
+31%
Added · +621K sh
8Transocean Ltd
REGISTERED SHS
$29.8M4.49M
4.5%
+2.1%
Added · +92K sh
9Navios Maritime Partners LP
COM UNIT LPI
$29.1M430.9K
4.4%
−7.5%
Reduced · −35K sh
10Qnity Electronics Inc
COMMON STOCK
$25.6M221.6K
3.9%
+8.5%
Added · +17K sh
11Ultra Clean Hldgs Inc
COM
$21.8M349.9K
3.3%
New
New position
12Aercap Holdings NV
SHS
$17.1M125.0K
2.6%
−53%
Reduced · −140K sh
13Sotera Health Co
COM
$17.1M1.19M
2.6%
119×
Added · +1.2M sh
14Flowserve Corp
COM
$14.5M197.0K
2.2%
New
New position
15Fluor Corp
COM
$14.0M299.2K
2.1%
New
New position
16Ciena Corp
COM NEW
$10.7M27.7K
1.6%
−64%
Reduced · −48K sh
17TTM Technologies Inc
COM
$9.7M100.0K
1.5%
−29%
Reduced · −40K sh
18Onto Innovation Inc
COM
$6.2M30.0K
0.9%
New
New position
19Amazon Com Inc
COM
$5.0M24.0K
0.8%
+20%
Added · +4K sh
20Block Inc
CL A
$4.8M80.0K
0.7%
−56%
Reduced · −100K sh
21Global E Online Ltd
SHS
$4.8M155.0K
0.7%
+55%
Added · +55K sh
22Check Point Software Tech L
T ORD
$3.7M26.0K
0.6%
−90%
Reduced · −228K sh
23Okta Inc
CL A
$3.1M40.0K
0.5%
−60%
Reduced · −60K sh
24Littelfuse Inc
COM
$2.7M8.0K
0.4%
New
New position
25Interactive Brokers Group I
N COM CL A
$2.7M40.0K
0.4%
−43%
Reduced · −30K sh
26Palo Alto Networks Inc
COM
$2.6M16.0K
0.4%
Held
27SPDR Gold TR
GOLD SHS
$2.2M5.0K
0.3%
−23%
Reduced · −1K sh
28Vaneck ETF Trust
JUNIOR GOLD MINE
$2.1M17.4K
0.3%
Held
29Par Pac Holdings Inc
COM NEW
$2.0M32.1K
0.3%
Held
30Agnico Eagle Mines Ltd
COM
$1.9M9.2K
0.3%
−8.0%
Reduced · −800 sh
31Vale S A
SPONSORED ADS
$1.7M107.1K
0.3%
New
New position
32SLB Limited
COM STK
$1.7M32.5K
0.3%
+35%
Added · +8K sh
33Halliburton Co
COM
$1.6M42.0K
0.2%
+16%
Added · +6K sh
34Valaris Ltd
CL A
$1.6M16.3K
0.2%
Held
35Exxon Mobil Corp
COM
$1.6M9.4K
0.2%
+13%
Added · +1K sh
36Ishares Bitcoin Trust ETF
SHS BEN INT
$1.5M40.0K
0.2%
Held
37Petroleo Brasileiro S A
SPONSORED ADR
$1.5M72.0K
0.2%
New
New position
38Global X FDS
GLOBAL X SILVER
$1.4M15.4K
0.2%
−46%
Reduced · −13K sh
39Ishares Silver TR
ISHARES
$1.4M20.1K
0.2%
−94%
Reduced · −325K sh
40PayPal Hldgs Inc
COM
$1.4M30.0K
0.2%
New
New position
41Motorola Solutions Inc
COM NEW
$1.3M3.0K
0.2%
New
New position
42CVR Energy Inc
COM
$1.1M33.4K
0.2%
Held
43Nutrien Ltd
COM
$1.1M14.2K
0.2%
Held
44Southern Copper Corp
COM
$1.1M6.2K
0.2%
+0.8%
Added · +51 sh
45Royal Gold Inc
COM
$1.0M4.1K
0.2%
Held
46Itau Unibanco Hldg S A
SPON ADR REP PFD
$1.0M119.5K
0.2%
New
New position
47Advanced Energy Inds
COM
$968K3.0K
0.1%
New
New position
48Norfolk Southn Corp
COM
$957K3.3K
0.1%
Held
49Golar LNG Ltd
SHS
$866K16.0K
0.1%
Held
50Genco Shipping & Trading LT
D SHS
$822K36.5K
0.1%
Held
Showing 50 of 59 positions

Largest options & derivatives disclosed

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

Put notional (bearish)$11.4M
Call notional (bullish)$39.6M
TypeUnderlyingNotional valueUnderlying shares
CALL · bullishVALE SA-SP ADRVALE$27.1M1.7M
CALL · bullishPETROLEO BRASILEIRO-SPON ADRPBR$12.4M600K
PUT · bearishCOREWEAVE INC-CL ACRWV$11.4M147K

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.

Filing history

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

QuarterAs ofFiledPositionsValueForm
Q1 2026Mar 31, 2026May 15, 202668$706.7M13F-HR
Q4 2025Dec 31, 2025Feb 17, 202669$857.4M13F-HR

Data source

Holdings from SEC EDGAR 13F-HR filings, updated quarterly, filed up to 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.