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Oriental Harbor Investment Master Fund Investment Portfolio (Q2 2026) — 13F Stock Holdings
Oriental Harbor Investment Master FundCIK: 0002046333
High-turnover traderSector-focusedContrarian
Total reported value
$1.6B
Reporting period: 2026-06-30 · Number of holdings: 13
Oriental Harbor Investment Master Fund disclosed 13 holdings in its latest 13F filing for the period ending 2026-06-30, with total reported value of $1.6B and a quarterly turnover rate of 104.1%.
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Personality snowflake
- Concentration
- 52.64
- Portfolio Stability
- 100
- Momentum
- 0
- Sector conviction
- 100
- Diversification
- 26
- Sizing Uniformity
- 91.23
Oriental Harbor Investment Master Fund's disclosed holdings carry a Herfindahl concentration index of 0.132 — mathematically equivalent to about 8 equally-sized positions, close to its 13 actual disclosed holdings. Value is spread relatively evenly across the portfolio rather than concentrated in a handful of names.
Position sizes are fairly uniform across the portfolio (a coefficient of variation of 0.88), suggesting a disciplined, rules-based approach to how much capital goes into each idea.
Recent activity leans toward initiating meaningfully larger new positions than it adds to existing ones (a 4.9 percentage-point tilt) — a pattern consistent with a more contrarian, new-idea-driven approach.
Source and citation information
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Recent moves
View source Form 13F filing on SEC.govNew buy INTC
New buy SNDK
New buy AMD
Add MU
+102.1% $145.7M
Trim GOOG
-12.9% $25.2M
New buy MRVL
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 | GOOG | Alphabet Inc-cl C | Stock-Comm Services | 22.48% | -8.02% | -12.88% | |
| 2 | INTC | Intel CORP | Stock-Tech | 15.65% | +15.65% | NEW | |
| 3 | NVDA | Nvidia CORP | Stock-Tech | 13.15% | -6.64% | -15.70% | |
| 4 | SNDK | Sandisk CORP | Stock-Tech | 10.65% | +10.65% | NEW | |
| 5 | MU | Micron Technology Inc | Stock-Tech | 10.33% | +8.15% | +102.09% | |
| 6 | AMD | Advanced Micro Devices | Stock-Tech | 8.85% | +8.85% | NEW | |
| 7 | MRVL | Marvell Technology Inc | Stock-Tech | 7.93% | +7.93% | NEW | |
| 8 | TSM | Taiwan Semiconductor-sp Adr | Stock-Tech | 3.97% | -2.29% | -34.54% | |
| 9 | ARM | Arm Holdings Plc-adr | Stock-Tech | 3.24% | +3.24% | NEW | |
| 10 | AVGO | Broadcom Inc | Stock-Tech | 1.51% | +1.51% | NEW | |
| 11 | LITE | Lumentum Holdings Inc | Stock-Tech | 1.36% | +1.36% | NEW | |
| 12 | AMZN | Amazon.com Inc | Stock-Consumer Disc | 0.87% | -2.47% | -67.01% | |
| 13 | META | Meta Platforms Inc-class A | Stock-Comm Services | 0.01% | -6.90% | -99.82% |
Portfolio Performance
Performance for Q3 2026
-6.6%
Performance Last 4 Quarters
+21.9%
- Stdev
- +30.5%
- Beta
- +2.15
- Alpha
- -7.8%
- Max Drawdown
- -19.8%
- Annualized Perf
- +24.6%
- Batting Avg vs S&P
- +47.6%
- Sortino
- +1.91
- Stutzer
- +0.27
- Treynor
- +0.12
- Sterling
- +0.82
- Calmar
- +1.24
- Information Ratio
- +0.54
- Tracking Error
- +19.5%
- Stdev Down
- +13.8%
- Winning Months %
- +57.1%
- Losing Months %
- +42.9%
- Best 12 Months
- +63.5%
- Worst 12 Months
- +19.2%
- Efficiency Ratio
- +0.34
- Sharpe
- +0.86
- Stdev Sectors
- +31.9%
- Skewness
- +0.86
- Kurtosis
- +0.68
- Upside Potential
- +3.86
Reported value over time
Sector allocation
Sector allocation over time
Quarterly history
* 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.
Holding changes this quarter
Oriental Harbor Investment Master Fund's most significant position changes for 2026-06-30: New buy: Intel CORP (INTC); New buy: Sandisk CORP (SNDK); New buy: Advanced Micro Devices (AMD); New buy: Marvell Technology Inc (MRVL); Sold out: Apple Inc (AAPL).
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | INTC | Intel CORP | +15.7% | NEW | New buy |
| 2 | SNDK | Sandisk CORP | +10.7% | NEW | New buy |
| 3 | AMD | Advanced Micro Devices | +8.9% | NEW | New buy |
| 4 | MU | Micron Technology Inc | +8.2% | +102.09% | Add |
| 5 | MRVL | Marvell Technology Inc | +7.9% | NEW | New buy |
| 6 | ARM | Arm Holdings Plc-adr | +3.2% | NEW | New buy |
| 7 | AVGO | Broadcom Inc | +1.5% | NEW | New buy |
| 8 | LITE | Lumentum Holdings Inc | +1.4% | NEW | New buy |
| 9 | CRCL | Circle Internet Group Inc | -0.3% | EXIT | Sold out |
| 10 | GGLL | Direxion Daily Googl Bull 2x | -2.3% | EXIT | Sold out |
| 11 | TSM | Taiwan Semiconductor-sp Adr | -2.3% | -34.54% | Trim |
| 12 | AMZN | Amazon.com Inc | -2.5% | -67.01% | Trim |
| 13 | TSLA | Tesla Inc | -6.5% | EXIT | Sold out |
| 14 | NVDA | Nvidia CORP | -6.6% | -15.70% | Trim |
| 15 | META | Meta Platforms Inc-class A | -6.9% | -99.82% | Trim |
| 16 | GOOGL | Alphabet Inc-cl A | -7% | EXIT | Sold out |
| 17 | TQQQ | Proshares Ultrapro Qqq | -7.2% | EXIT | Sold out |
| 18 | AAPL | Apple Inc | -7.7% | EXIT | Sold out |
| 19 | GOOG | Alphabet Inc-cl C | -8% | -12.88% | Trim |
Filing History
FAQ
What is Oriental Harbor Investment Master Fund and what type of investor is it?
Oriental Harbor Investment Master Fund 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 $1.6B, spread across 13 disclosed positions.
What are Oriental Harbor Investment Master Fund's largest equity positions?
Based on the latest 13F filing, Oriental Harbor Investment Master Fund's top holdings by market value are:
1. Alphabet Inc-cl C (GOOG) — $370.9M (22.5%)
2. Intel CORP (INTC) — $258.2M (15.7%)
3. Nvidia CORP (NVDA) — $216.9M (13.2%)
4. Sandisk CORP (SNDK) — $175.7M (10.7%)
5. Micron Technology Inc (MU) — $170.4M (10.3%)
What changes did Oriental Harbor Investment Master Fund make in its most recent portfolio filing?
In the latest reported quarter, Oriental Harbor Investment Master Fund made 19 notable position adjustments: 7 new positions were initiated, 1 existing holdings were added to, 5 positions were partially reduced, and 6 were completely exited. The largest of these moves: New buy: Intel CORP (INTC); New buy: Sandisk CORP (SNDK); New buy: Advanced Micro Devices (AMD); New buy: Marvell Technology Inc (MRVL); Sold out: Apple Inc (AAPL)
What sectors does Oriental Harbor Investment Master Fund focus on?
Oriental Harbor Investment Master Fund is concentrated in the following sectors based on its current disclosed equity portfolio:
• Information Technology: 76.6%
• Communication Services: 22.5%
• Consumer Discretionary: 0.9%
Investment Profile
Oriental Harbor Investment Master Fund returned an annualized 24.6% over the trailing 21 months — underperforming the S&P 500 by 7.8 points — based on a reconstructed track record of its disclosed 13F positions, with a beta of 2.15 (more volatile than the market) and a 48% quarterly batting average against the index.
Its portfolio is moderately concentrated and fast-trading, with 76.6% 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 trimmed its META position for two straight quarters, cutting it by $90.2M while still holding $135.8K.
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Developer Access
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REST API
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