KI
Keystone Investors Pte LTD 13F Holdings & Recent Stock Buys (Q2 2026)
Keystone Investors Pte LTDCIK: 0001926253
Diversified strategyHigh-turnover traderSector-focused
Total reported value
$1.9B
Reporting period: 2026-06-30 · Number of holdings: 84
KEYSTONE INVESTORS PTE LTD disclosed 84 holdings in its latest 13F filing for the period ending 2026-06-30, with total reported value of $1.9B and a quarterly turnover rate of 131.8%.
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Personality snowflake
- Concentration
- 17.69
- Portfolio Stability
- 100
- Momentum
- 100
- Sector conviction
- 100
- Diversification
- 100
- Sizing Uniformity
- 83.43
Keystone Investors Pte LTD's disclosed holdings carry a Herfindahl concentration index of 0.044 — mathematically equivalent to about 23 equally-sized positions, well below its 84 actual disclosed holdings. That gap points to a strategy built around a small core of high-conviction bets rather than broad diversification.
Position sizes vary widely across the portfolio (a coefficient of variation of 1.66), with a handful of outsized bets alongside many smaller positions.
No strong tilt toward either adding to existing winners or initiating outsized new positions was observed in the latest reported quarter.
Source and citation information
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Recent moves
View source Form 13F filing on SEC.govAdd STX
+169.2% $162.7M
Trim NVDA
-76.4% -$75.4M
Add WDC
+49.2% $154.0M
Trim SE
-67.8% -$63.5M
Trim GOOG
-19.3% -$13.8M
Sold out IQV
Holdings Map
New buyAddUnchangedTrim
Top 10 holdings by weight
Full holdings list this quarter
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | WDC | Western Digital CORP | Stock-Tech | 10.06% | +7.01% | +49.25% | |
| 2 | STX | Seagate Technology Holdings plc | Stock-Tech | 9.74% | +8.01% | +169.22% | |
| 3 | AMZN | Amazon.com Inc | Stock-Consumer Disc | 7.48% | +0.78% | +81.32% | |
| 4 | GOOG | Alphabet Inc-cl C | Stock-Comm Services | 7.33% | -6.20% | -19.33% | |
| 5 | COHR | Coherent CORP | Stock-Tech | 4.52% | +1.09% | +3.51% | |
| 6 | LITE | Lumentum Holdings Inc | Stock-Tech | 4.07% | +0.42% | -19.64% | |
| 7 | CRCL | Circle Internet Group Inc | Stock-Financials | 4.02% | +4.02% | NEW | |
| 8 | FRO | Frontline plc | Stock-Other | 3.49% | +3.49% | NEW | |
| 9 | MRVL | Marvell Technology Inc | Stock-Tech | 3.41% | +3.41% | NEW | |
| 10 | STM | Stmicroelectronics Nv-ny Shs | Stock-Tech | 2.90% | +2.90% | NEW | |
| 11 | VSH | Vishay Intertechnology Inc | Stock-Other | 2.69% | +2.69% | NEW | |
| 12 | MSFT | Microsoft CORP | Stock-Tech | 2.63% | -1.50% | +38.21% | |
| 13 | MOG-A | Moog Inc-class A | Stock-Other | 2.22% | +2.22% | NEW | |
| 14 | ROST | Ross Stores Inc | Stock-Consumer Disc | 1.78% | +1.27% | +391.95% | |
| 15 | AMD | Advanced Micro Devices | Stock-Tech | 1.66% | +1.66% | NEW | |
| 16 | IBKR | Interactive Brokers Gro-cl A | Stock-Financials | 1.38% | +1.38% | NEW | |
| 17 | NVDA | Nvidia CORP | Stock-Tech | 1.37% | -7.69% | -76.41% | |
| 18 | TEAM | Atlassian Corp-cl A | Stock-Tech | 1.34% | +1.25% | +4852.59% | |
| 19 | MAR | Marriott International -cl A | Stock-Consumer Disc | 1.31% | +1.31% | NEW | |
| 20 | COST | Costco Wholesale CORP | Stock-Consumer Staples | 1.19% | +1.19% | NEW | |
| 21 | SE | Sea Ltd-adr | Stock-Comm Services | 1.08% | -6.44% | -67.85% | |
| 22 | BABA | Alibaba Group Holding-sp Adr | Stock-Consumer Disc | 1.07% | +1.07% | NEW | |
| 23 | SNOW | Snowflake Inc | Stock-Tech | 1.04% | +0.22% | +82.97% | |
| 24 | CRS | Carpenter Technology | Stock-Industrials | 1.03% | +0.78% | +247.28% | |
| 25 | DDOG | Datadog Inc - Class A | Stock-Tech | 1.00% | +1.00% | NEW | |
| 26 | OKTA | Okta Inc | Stock-Tech | 0.96% | +0.96% | NEW | |
| 27 | ATI | Ati Inc | Stock-Industrials | 0.96% | +0.62% | +171.17% | |
| 28 | RBLX | Roblox CORP -class A | Stock-Comm Services | 0.89% | +0.71% | +1146.21% | |
| 29 | SGML | Sigma Lithium CORP | Stock-Other | 0.88% | +0.78% | +1459.42% | |
| 30 | FIX | Comfort Systems USA Inc | Stock-Industrials | 0.88% | +0.76% | +486.30% | |
| 31 | VRT | Vertiv Holdings Co-a | Stock-Industrials | 0.82% | +0.82% | NEW | |
| 32 | LYV | Live Nation Entertainment In | Stock-Comm Services | 0.77% | +0.77% | NEW | |
| 33 | BNTX | Biontech Se-adr | Stock-Other | 0.76% | +0.76% | NEW | |
| 34 | BROS | Dutch Bros Inc-class A | Stock-Consumer Disc | 0.76% | +0.74% | +5426.48% | |
| 35 | RCL | Royal Caribbean Cruises Ltd. | Stock-Consumer Disc | 0.70% | +0.70% | NEW | |
| 36 | STNG | Scorpio Tankers Inc. | Stock-Other | 0.69% | +0.69% | NEW | |
| 37 | BWXT | Bwx Technologies Inc | Stock-Industrials | 0.67% | +0.40% | +278.75% | |
| 38 | F | Ford Motor Co | Stock-Consumer Disc | 0.65% | +0.65% | NEW | |
| 39 | AS | Amer Sports, Inc. | Stock-Consumer Disc | 0.62% | +0.62% | NEW | |
| 40 | GILD | Gilead Sciences Inc | Stock-Healthcare | 0.51% | -1.78% | -63.81% | |
| 41 | MOD | Modine Manufacturing Co | Stock-Consumer Disc | 0.50% | +0.50% | NEW | |
| 42 | FWONK | Liberty Media Corp-formula-c | Stock-Comm Services | 0.49% | +0.41% | +941.89% | |
| 43 | ✓ | Stock-Other | 0.46% | +0.46% | NEW | ||
| 44 | FTAI | FTAI Aviation Ltd. | Stock-Industrials | 0.43% | +0.43% | NEW | |
| 45 | ARWR | Arrowhead Pharmaceuticals In | Stock-Healthcare | 0.41% | +0.06% | +63.49% | |
| 46 | HOOD | Robinhood Markets Inc - A | Stock-Financials | 0.41% | +0.41% | NEW | |
| 47 | JNJ | Johnson & Johnson | Stock-Healthcare | 0.41% | +0.41% | NEW | |
| 48 | CAT | Caterpillar Inc | Stock-Industrials | 0.38% | +0.38% | NEW | |
| 49 | H | Hyatt Hotels CORP - Cl A | Stock-Consumer Disc | 0.34% | -0.12% | +3.23% | |
| 50 | ORCL | Oracle CORP | Stock-Tech | 0.33% | +0.21% | +501.98% |
1–50 of 84
* This report is exclusively curated by the AlphaSMO team. AlphaSMO is the web's most authoritative 13F / Inside Trader database, delivering precise insider trading and institutional holdings insights.
Portfolio Performance
Performance for Q3 2026
-1.9%
Performance Last 4 Quarters
+31.6%
- Stdev
- +22.2%
- Beta
- +1.4
- Alpha
- +4.6%
- Max Drawdown
- -10.4%
- Annualized Perf
- +35%
- Batting Avg vs S&P
- +55.6%
- Sortino
- +3.71
- Stutzer
- +0.46
- Treynor
- +0.23
- Sterling
- +1.94
- Calmar
- +3.36
- Information Ratio
- +0.92
- Tracking Error
- +13.8%
- Stdev Down
- +8.8%
- Winning Months %
- +61.1%
- Losing Months %
- +38.9%
- Best 12 Months
- +56.3%
- Worst 12 Months
- +9.4%
- Efficiency Ratio
- +0.81
- Sharpe
- +1.47
- Stdev Sectors
- +16.2%
- Skewness
- +0.75
- Kurtosis
- +0.77
- Upside Potential
- +5.29
Reported value over time
Sector allocation
Sector allocation over time
Quarterly history
Holding changes this quarter
Keystone Investors Pte LTD's most significant position changes for 2026-06-30: New buy: Circle Internet Group Inc (CRCL); New buy: Frontline plc (FRO); New buy: Marvell Technology Inc (MRVL); Sold out: Iqvia Holdings Inc (IQV); New buy: Stmicroelectronics Nv-ny Shs (STM).
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | STX | Seagate Technology Holdings plc | +8% | +169.22% | Add |
| 2 | WDC | Western Digital CORP | +7% | +49.25% | Add |
| 3 | CRCL | Circle Internet Group Inc | +4% | NEW | New buy |
| 4 | FRO | Frontline plc | +3.5% | NEW | New buy |
| 5 | MRVL | Marvell Technology Inc | +3.4% | NEW | New buy |
| 6 | STM | Stmicroelectronics Nv-ny Shs | +2.9% | NEW | New buy |
| 7 | VSH | Vishay Intertechnology Inc | +2.7% | NEW | New buy |
| 8 | MOG-A | Moog Inc-class A | +2.2% | NEW | New buy |
| 9 | AMD | Advanced Micro Devices | +1.7% | NEW | New buy |
| 10 | IBKR | Interactive Brokers Gro-cl A | +1.4% | NEW | New buy |
| 11 | MAR | Marriott International -cl A | +1.3% | NEW | New buy |
| 12 | ROST | Ross Stores Inc | +1.3% | +391.95% | Add |
| 13 | TEAM | Atlassian Corp-cl A | +1.3% | +4852.59% | Add |
| 14 | COST | Costco Wholesale CORP | +1.2% | NEW | New buy |
| 15 | COHR | Coherent CORP | +1.1% | +3.51% | Add |
| 16 | BABA | Alibaba Group Holding-sp Adr | +1.1% | NEW | New buy |
| 17 | DDOG | Datadog Inc - Class A | +1% | NEW | New buy |
| 18 | OKTA | Okta Inc | +1% | NEW | New buy |
| 19 | VRT | Vertiv Holdings Co-a | +0.8% | NEW | New buy |
| 20 | AMZN | Amazon.com Inc | +0.8% | +81.32% | Add |
| 21 | CRS | Carpenter Technology | +0.8% | +247.28% | Add |
| 22 | SGML | Sigma Lithium CORP | +0.8% | +1459.42% | Add |
| 23 | LYV | Live Nation Entertainment In | +0.8% | NEW | New buy |
| 24 | FIX | Comfort Systems USA Inc | +0.8% | +486.30% | Add |
| 25 | BNTX | Biontech Se-adr | +0.8% | NEW | New buy |
| 26 | BROS | Dutch Bros Inc-class A | +0.7% | +5426.48% | Add |
| 27 | RBLX | Roblox CORP -class A | +0.7% | +1146.21% | Add |
| 28 | RCL | Royal Caribbean Cruises Ltd. | +0.7% | NEW | New buy |
| 29 | STNG | Scorpio Tankers Inc. | +0.7% | NEW | New buy |
| 30 | F | Ford Motor Co | +0.7% | NEW | New buy |
| 31 | ATI | Ati Inc | +0.6% | +171.17% | Add |
| 32 | AS | Amer Sports, Inc. | +0.6% | NEW | New buy |
| 33 | MOD | Modine Manufacturing Co | +0.5% | NEW | New buy |
| 34 | ✓ | +0.5% | NEW | New buy | |
| 35 | FTAI | FTAI Aviation Ltd. | +0.4% | NEW | New buy |
| 36 | LITE | Lumentum Holdings Inc | +0.4% | -19.64% | Trim |
| 37 | FWONK | Liberty Media Corp-formula-c | +0.4% | +941.89% | Add |
| 38 | HOOD | Robinhood Markets Inc - A | +0.4% | NEW | New buy |
| 39 | JNJ | Johnson & Johnson | +0.4% | NEW | New buy |
| 40 | BWXT | Bwx Technologies Inc | +0.4% | +278.75% | Add |
| 41 | CAT | Caterpillar Inc | +0.4% | NEW | New buy |
| 42 | DKS | Dick's Sporting Goods Inc | +0.3% | NEW | New buy |
| 43 | NVT | nVent Electric plc | +0.3% | NEW | New buy |
| 44 | PRIM | Primoris Services CORP | +0.3% | NEW | New buy |
| 45 | HLT | Hilton Worldwide Holdings In | +0.3% | NEW | New buy |
| 46 | INTC | Intel CORP | +0.3% | NEW | New buy |
| 47 | TWST | Twist Bioscience CORP | +0.3% | NEW | New buy |
| 48 | DFTX | Definium Therapeutics Inc | +0.2% | NEW | New buy |
| 49 | SNOW | Snowflake Inc | +0.2% | +82.97% | Add |
| 50 | ORCL | Oracle CORP | +0.2% | +501.98% | Add |
1–50 of 127
Filing History
FAQ
What is Keystone Investors Pte LTD and what type of investor is it?
Keystone Investors Pte LTD is an investment manager that files SEC Form 13F quarterly, disclosing its U.S. public equity holdings to regulators. As of the most recent reporting period (2026-06-30), the firm manages a tracked equity portfolio valued at approximately $1.9B, spread across 84 disclosed positions.
What are Keystone Investors Pte LTD's largest equity positions?
Based on the latest 13F filing, Keystone Investors Pte LTD's top holdings by market value are:
1. Western Digital CORP (WDC) — $187.9M (10.1%)
2. Seagate Technology Holdings plc (STX) — $182.0M (9.7%)
3. Amazon.com Inc (AMZN) — $139.7M (7.5%)
4. Alphabet Inc-cl C (GOOG) — $136.8M (7.3%)
5. Coherent CORP (COHR) — $84.4M (4.5%)
What changes did Keystone Investors Pte LTD make in its most recent portfolio filing?
In the latest reported quarter, Keystone Investors Pte LTD made 127 notable position adjustments: 50 new positions were initiated, 22 existing holdings were added to, 12 positions were partially reduced, and 43 were completely exited. The largest of these moves: New buy: Circle Internet Group Inc (CRCL); New buy: Frontline plc (FRO); New buy: Marvell Technology Inc (MRVL); Sold out: Iqvia Holdings Inc (IQV); New buy: Stmicroelectronics Nv-ny Shs (STM)
What sectors does Keystone Investors Pte LTD focus on?
Keystone Investors Pte LTD is concentrated in the following sectors based on its current disclosed equity portfolio:
• Information Technology: 52.5%
• Consumer Discretionary: 18.5%
• Communication Services: 12.1%
• Industrials: 6.9%
• Financials: 6.7%
• Health Care: 1.5%
Investment Profile
Keystone Investors Pte LTD returned an annualized 35.0% over the trailing 36 months — outperforming the S&P 500 by 4.6 points — based on a reconstructed track record of its disclosed 13F positions, with a beta of 1.40 (more volatile than the market) and a 56% quarterly batting average against the index.
Its portfolio is broadly diversified and fast-trading, with 52.5% of the portfolio concentrated in Information Technology.
Its turnover score has risen from 0 to 100 over the past 4 quarters — a shift toward more active trading.
It has added to its STX position over the past two quarters (+$170.1M, now $182.0M), while trimming SE over the same stretch (-$83.7M, still holding $20.2M).
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Developer Access
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REST API
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npx alphasmo institutions get keystone-investors-pte-ltd