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 HLDGS INC and trimmed TEVA PHARMACEUTICAL INDS LT. Their largest long position is TEVA PHARMACEUTICAL INDS LT 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.
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Use Arkolith to show ION Fund Management Ltd's latest holdings, largest changes, and filing provenance.
Top-heavy: focused book
Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.
0% mapped to company sectors
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.
Estimated $ traded · quarter-end prices, no cost basis
Bars show each stock's share of the portfolio. Click a row for its position history.
| # | Security | Value | Shares | % Port | Last move | History |
|---|---|---|---|---|---|---|
| 1 | Teva Pharmaceutical Inds LT D SPONSORED ADS | $116.2M | 3.86M | 17.7% | ▼−4.7% Reduced · −191K sh | |
| 2 | Delek US Hldgs Inc New COM | $61.7M | 1.37M | 9.4% | ▼−22% Reduced · −398K sh | |
| 3 | Solaredge Technologies Inc COM | $56.3M | 1.10M | 8.6% | ▲+39% Added · +308K sh | |
| 4 | Illumina Inc COM | $48.1M | 390.2K | 7.3% | ▲+18% Added · +58K sh | |
| 5 | Danaos Corporation SHS | $42.9M | 381.1K | 6.5% | ▼−9.2% Reduced · −39K sh | |
| 6 | Phinia Inc COMMON STOCK | $34.9M | 510.0K | 5.3% | ▼−1.0% Reduced · −5K sh | |
| 7 | Nexgen Energy Ltd COM | $30.4M | 2.62M | 4.6% | ▲+31% Added · +621K sh | |
| 8 | Transocean Ltd REGISTERED SHS | $29.8M | 4.49M | 4.5% | ▲+2.1% Added · +92K sh | |
| 9 | Navios Maritime Partners LP COM UNIT LPI | $29.1M | 430.9K | 4.4% | ▼−7.5% Reduced · −35K sh | |
| 10 | Qnity Electronics Inc COMMON STOCK | $25.6M | 221.6K | 3.9% | ▲+8.5% Added · +17K sh | |
| 11 | Ultra Clean Hldgs Inc COM | $21.8M | 349.9K | 3.3% | ▲New New position | |
| 12 | Aercap Holdings NV SHS | $17.1M | 125.0K | 2.6% | ▼−53% Reduced · −140K sh | |
| 13 | Sotera Health Co COM | $17.1M | 1.19M | 2.6% | ▲119× Added · +1.2M sh | |
| 14 | Flowserve Corp COM | $14.5M | 197.0K | 2.2% | ▲New New position | |
| 15 | Fluor Corp COM | $14.0M | 299.2K | 2.1% | ▲New New position | |
| 16 | Ciena Corp COM NEW | $10.7M | 27.7K | 1.6% | ▼−64% Reduced · −48K sh | |
| 17 | TTM Technologies Inc COM | $9.7M | 100.0K | 1.5% | ▼−29% Reduced · −40K sh | |
| 18 | Onto Innovation Inc COM | $6.2M | 30.0K | 0.9% | ▲New New position | |
| 19 | Amazon Com Inc COM | $5.0M | 24.0K | 0.8% | ▲+20% Added · +4K sh | |
| 20 | Block Inc CL A | $4.8M | 80.0K | 0.7% | ▼−56% Reduced · −100K sh | |
| 21 | Global E Online Ltd SHS | $4.8M | 155.0K | 0.7% | ▲+55% Added · +55K sh | |
| 22 | Check Point Software Tech L T ORD | $3.7M | 26.0K | 0.6% | ▼−90% Reduced · −228K sh | |
| 23 | Okta Inc CL A | $3.1M | 40.0K | 0.5% | ▼−60% Reduced · −60K sh | |
| 24 | Littelfuse Inc COM | $2.7M | 8.0K | 0.4% | ▲New New position | |
| 25 | Interactive Brokers Group I N COM CL A | $2.7M | 40.0K | 0.4% | ▼−43% Reduced · −30K sh | |
| 26 | Palo Alto Networks Inc COM | $2.6M | 16.0K | 0.4% | —Held | |
| 27 | SPDR Gold TR GOLD SHS | $2.2M | 5.0K | 0.3% | ▼−23% Reduced · −1K sh | |
| 28 | Vaneck ETF Trust JUNIOR GOLD MINE | $2.1M | 17.4K | 0.3% | —Held | |
| 29 | Par Pac Holdings Inc COM NEW | $2.0M | 32.1K | 0.3% | —Held | |
| 30 | Agnico Eagle Mines Ltd COM | $1.9M | 9.2K | 0.3% | ▼−8.0% Reduced · −800 sh | |
| 31 | Vale S A SPONSORED ADS | $1.7M | 107.1K | 0.3% | ▲Added Added · +107K sh | |
| 32 | SLB Limited COM STK | $1.7M | 32.5K | 0.3% | ▲+35% Added · +8K sh | |
| 33 | Halliburton Co COM | $1.6M | 42.0K | 0.2% | ▲+16% Added · +6K sh | |
| 34 | Valaris Ltd CL A | $1.6M | 16.3K | 0.2% | —Held | |
| 35 | Exxon Mobil Corp COM | $1.6M | 9.4K | 0.2% | ▲+13% Added · +1K sh | |
| 36 | Ishares Bitcoin Trust ETF SHS BEN INT | $1.5M | 40.0K | 0.2% | —Held | |
| 37 | Petroleo Brasileiro S A SPONSORED ADR | $1.5M | 72.0K | 0.2% | ▲New New position | |
| 38 | Global X FDS GLOBAL X SILVER | $1.4M | 15.4K | 0.2% | ▼−46% Reduced · −13K sh | |
| 39 | Ishares Silver TR ISHARES | $1.4M | 20.1K | 0.2% | ▼−94% Reduced · −325K sh | |
| 40 | PayPal Hldgs Inc COM | $1.4M | 30.0K | 0.2% | ▲New New position | |
| 41 | Motorola Solutions Inc COM NEW | $1.3M | 3.0K | 0.2% | ▲New New position | |
| 42 | CVR Energy Inc COM | $1.1M | 33.4K | 0.2% | —Held | |
| 43 | Nutrien Ltd COM | $1.1M | 14.2K | 0.2% | —Held | |
| 44 | Southern Copper Corp COM | $1.1M | 6.2K | 0.2% | ▲+0.8% Added · +51 sh | |
| 45 | Royal Gold Inc COM | $1.0M | 4.1K | 0.2% | —Held | |
| 46 | Itau Unibanco Hldg S A SPON ADR REP PFD | $1.0M | 119.5K | 0.2% | ▲New New position | |
| 47 | Advanced Energy Inds COM | $968K | 3.0K | 0.1% | ▲New New position | |
| 48 | Norfolk Southn Corp COM | $957K | 3.3K | 0.1% | —Held | |
| 49 | Golar LNG Ltd SHS | $866K | 16.0K | 0.1% | —Held | |
| 50 | Genco Shipping & Trading LT D SHS | $822K | 36.5K | 0.1% | —Held |
Put / call positions from the 13F — totals include every disclosed option leg
| Type | Underlying | Notional value | Underlying shares |
|---|---|---|---|
| CALL · bullish | VALE S A | $27.1M | 1.7M |
| CALL · bullish | PETROLEO BRASILEIRO S A | $12.4M | 600K |
| PUT · bearish | COREWEAVE INC | $11.4M | 147K |
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.
As-of date vs the date the SEC received each filing
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.