Keystone Investors Pte Ltd
Keystone Investors Pte Ltd, managed by Ken Tonkinson, reported 84 positions worth $1.87B in its 2026 Q2 13F filing: 50 new and 43 closed.
Estimated return
Since 2025 Q2 the disclosed positions returned an estimated +42.8% against +23.6% for the S&P 500. Price-only return of the fund's top 100 US longs at each quarter start, vs the S&P 500 over the same windows. Not the fund's actual return (no trades, fees, shorts, derivatives, cash).
| Quarter | Fund | S&P 500 |
|---|---|---|
| 2025 Q2 | +20.0% | +11.4% |
| 2025 Q3 | +13.8% | +7.6% |
| 2025 Q4 | +4.6% | +3.1% |
Top holdings, 2026 Q2
| Ticker | Company | Value | Portfolio % | Change |
|---|---|---|---|---|
| WDC | WESTERN DIGITAL CORP | $187.94M | 10.10% | +49.2% |
| STX | SEAGATE TECHNOLOGY HLDNGS PL | $181.99M | 9.70% | +169.2% |
| AMZN | AMAZON COM INC | $139.66M | 7.50% | +81.3% |
| GOOG | ALPHABET INC | $136.85M | 7.30% | -19.3% |
| COHR | COHERENT CORP | $84.40M | 4.50% | +3.5% |
| LITE | LUMENTUM HLDGS INC | $75.96M | 4.10% | -19.6% |
| CRCL | CIRCLE INTERNET GROUP INC | $75.05M | 4.00% | NEW |
| FRO | FRONTLINE PLC | $65.20M | 3.50% | NEW |
| MRVL | MARVELL TECHNOLOGY INC | $63.73M | 3.40% | NEW |
| STM | STMICROELECTRONICS N V | $54.25M | 2.90% | NEW |
| VSH | VISHAY INTERTECHNOLOGY INC | $50.20M | 2.70% | NEW |
| MSFT | MICROSOFT CORP | $49.07M | 2.60% | +38.2% |
| MOGA | MOOG INC | $41.55M | 2.20% | NEW |
| ROST | ROSS STORES INC | $33.30M | 1.80% | +391.9% |
| AMD | ADVANCED MICRO DEVICES INC | $31.04M | 1.70% | NEW |
| IBKR | INTERACTIVE BROKERS GROUP IN | $25.78M | 1.40% | NEW |
| NVDA | NVIDIA CORPORATION | $25.54M | 1.40% | -76.4% |
| TEAM | ATLASSIAN CORPORATION | $25.10M | 1.30% | +4852.6% |
| MAR | MARRIOTT INTL INC NEW | $24.56M | 1.30% | NEW |
| COST | COSTCO WHOLESALE CORPORATION | $22.30M | 1.20% | NEW |
| SE | SEA LTD | $20.23M | 1.10% | -67.8% |
| BABA | ALIBABA GROUP HLDG LTD | $20.05M | 1.10% | NEW |
| SNOW | SNOWFLAKE INC | $19.50M | 1.00% | +83% |
| CRS | CARPENTER TECHNOLOGY CORP | $19.22M | 1.00% | +247.3% |
| DDOG | DATADOG INC | $18.76M | 1.00% | NEW |
| OKTA | OKTA INC | $18.01M | 0.96% | NEW |
| ATI | ATI INC | $17.86M | 0.96% | +171.2% |
| RBLX | ROBLOX CORP | $16.60M | 0.89% | +1146.2% |
| SGML | SIGMA LITHIUM CORPORATION | $16.49M | 0.88% | +1459.4% |
| FIX | COMFORT SYS USA INC | $16.45M | 0.88% | +486.3% |
| VRT | VERTIV HOLDINGS CO | $15.39M | 0.82% | NEW |
| LYV | LIVE NATION ENTERTAINMENT IN | $14.37M | 0.77% | NEW |
| BNTX | BIONTECH SE | $14.28M | 0.76% | NEW |
| BROS | DUTCH BROS INC | $14.21M | 0.76% | +5426.5% |
| RCL | ROYAL CARIBBEAN GROUP | $13.15M | 0.70% | NEW |
| STNG | SCORPIO TANKERS INC | $12.87M | 0.69% | NEW |
| BWXT | BWX TECHNOLOGIES INC | $12.61M | 0.67% | +278.7% |
| F | FORD MTR CO DEL | $12.10M | 0.65% | NEW |
| AS | AMER SPORTS INC | $11.63M | 0.62% | NEW |
| GILD | GILEAD SCIENCES INC | $9.49M | 0.51% | -63.8% |
| MOD | MODINE MFG CO | $9.36M | 0.50% | NEW |
| FWONK | LIBERTY MEDIA CORP DEL | $9.24M | 0.49% | +941.9% |
| CBRS | CEREBRAS SYSTEMS INC | $8.56M | 0.46% | NEW |
| FTAI | FTAI AVIATION LTD | $7.94M | 0.43% | NEW |
| ARWR | ARROWHEAD PHARMACEUTICALS IN | $7.72M | 0.41% | +63.5% |
| HOOD | ROBINHOOD MKTS INC | $7.63M | 0.41% | NEW |
| JNJ | JOHNSON & JOHNSON | $7.62M | 0.41% | NEW |
| CAT | CATERPILLAR INC | $7.09M | 0.38% | NEW |
| H | HYATT HOTELS CORP | $6.32M | 0.34% | +3.2% |
| ORCL | ORACLE CORP | $6.10M | 0.33% | +502% |
All funds · Hedge Fund Tracker
Source: SEC EDGAR 13F filings, reported as of quarter end and filed up to 45 days later. Not investment advice.