ION Asset Management
ION Asset Management is an exempt reporting adviser based in Herzliya, Centre, Israel that reports managing 2 hedge funds on Form ADV. Its private funds, of all types, hold $1.1 billion in gross assets. Its disclosed U.S. stock holdings returned an estimated +23.6% 2026 YTD through Jun 30 (S&P 500: +9.5%), based on 13F filings. Over a longer period they returned an estimated +68.0% from Q3 2024 to Q2 2026, compared with +37.2% for the S&P 500, based on 13F filings.
- Regulatory assets under management
- —Form ADV Item 5.F
- Gross assets of private funds
- $1.1 billionAll private fund types, Form ADV
- Hedge funds managed
- 22 private funds in total
- Employees
- —Form ADV Item 5.A
- Registration
- Exempt reporting adviserCRD 342243
- Latest Form ADV
- 04/20/2026Disciplinary disclosures: none reported
Estimated 13F portfolio performance
| Quarter | Est. 13F return | S&P 500 |
|---|---|---|
| Q2 2026 | +17.8% | +14.8% |
| Q1 2026 | +4.9% | -4.6% |
| Q4 2025 | +9.3% | +2.4% |
| Q3 2025 | +18.3% | +7.8% |
| Q2 2025 | +12.7% | +10.4% |
| Q1 2025 | -18.5% | -4.5% |
| Q4 2024 | +9.4% | +2.1% |
| Q3 2024 | +4.5% | +5.4% |
Estimate of the firm's disclosed long U.S. stock portfolio from its quarterly 13F filings, holding each quarter-end portfolio to the next quarter-end at prices implied by all 13F filers. It is a price return before dividends and fees, ignores shorts, options, bonds, cash and trading within the quarter, and is not the return of any fund. Disclosures
Largest disclosed holdings
- Teva Pharmaceutical Inds LTD$141.6 million
- Delek US Hldgs Inc New$75.3 million
- Solaredge Technologies Inc$61.8 million
- Sotera Health Co$59.3 million
- Illumina Inc Com$53.9 million
- Danaos Corp$50.3 million
- Flowserve Corp$46.8 million
- Global-e Online$45.6 million
- Phinia Inc Common Stock$45.1 million
- Ultra Clean Hldgs Inc$42.5 million
As of 2026-06-30, from 13F filing by ION Fund Management Ltd.
From SEC filings. Firm data comes from the SEC's Form ADV data as of Oct 2, 2026; performance estimates come from Form 13F. HedgeMountain has not verified this information, and it is not an offer, solicitation or recommendation. Full disclosures