Keystone Investors Pte. LTD.
Keystone Investors Pte. LTD. is an exempt reporting adviser based in Singapore, Singapore, Singapore that reports managing 2 hedge funds on Form ADV. Its private funds, of all types, hold $3.9 billion in gross assets. Its disclosed U.S. stock holdings returned an estimated +29.3% 2025 YTD through Dec 31 (S&P 500: +16.4%), based on 13F filings. Over a longer period they returned an estimated +42.8% from Q3 2024 to Q4 2025, compared with +25.3% for the S&P 500, based on 13F filings.
- Regulatory assets under management
- —Form ADV Item 5.F
- Gross assets of private funds
- $3.9 billionAll private fund types, Form ADV
- Hedge funds managed
- 22 private funds in total
- Employees
- —Form ADV Item 5.A
- Registration
- Exempt reporting adviserCRD 318768
- Latest Form ADV
- 04/27/2026Disciplinary disclosures: none reported
Estimated 13F portfolio performance
| Quarter | Est. 13F return | S&P 500 |
|---|---|---|
| Q4 2025 | +4.6% | +2.4% |
| Q3 2025 | +13.8% | +7.8% |
| Q2 2025 | +19.9% | +10.4% |
| Q1 2025 | -9.4% | -4.5% |
| Q4 2024 | +5.2% | +2.1% |
| Q3 2024 | +5.0% | +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
- Western Digital Corp$187.9 million
- Seagate Technology Holdings$182.0 million
- Amazon Com Inc Com$139.7 million
- Alphabet, Inc Non-voting Class$136.8 million
- Coherent Corp$84.4 million
- Lumentum Hldgs Inc$76.0 million
- Circle Internet Group Inc Com CL A$75.1 million
- Frontline PLC$65.2 million
- Marvell Technology Inc Com$63.7 million
- Stmicroelectronics N V$54.2 million
As of 2026-06-30, from 13F filing by Keystone Investors Pte 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