Oriental Harbor Investment Master Fund portfolio
Concentrated managerType not verifiedPortfolio as of Sep 30, 2026 (Q3 2026) · filed with the SEC on Oct 22, 2026 · data updated on Nov 5, 2026 · Q3 2026 13F (filing) ↗ · all its 13F filings ↗
A 13F shows the portfolio at quarter-end and is filed up to 45 days later: these are not real-time positions and they may have changed.
Oriental Harbor Investment Master Fund reported a $1.5 bn portfolio of 13 positions to the SEC as of the end of Q3 2026. Its largest positions are GOOG, NVDA, INTC. During the quarter it opened Apple and Space Exploration Technologies and exited Marvell Technology and ARM Holdings.
Sections with a free account
What changed this quarter
14 positions with a change (2 new, 6 added to, 4 trimmed, 2 sold). 12 are listed here: those of 0.5 points of the portfolio or more (up to 12).
- Marvell Technology−7.9 ppof portfolioSold out7.9% → —
- Advanced Micro Devices−64%fewer sharesReduced8.9% → 3.8%
- Apple+5.5 ppof portfolioNew— → 6.2%
- ARM Holdings−3.2 ppof portfolioSold out3.2% → —
- Alphabet+11%more sharesIncreased22.5% → 26.9%
- NVIDIA+14%more sharesIncreased13.1% → 19.2%
- Broadcom−99%fewer sharesReduced1.5% → under 0.1%
- Amazon.com+135%more sharesIncreased0.9% → 2.4%
- Space Exploration Technologies+1.0 ppof portfolioNew— → 1.1%
- Lumentum Holdings−62%fewer sharesReduced1.4% → 0.6%
- Meta Platforms+6,694%more sharesIncreasedunder 0.1% → 0.8%
- Intel−4.9%fewer sharesReduced15.7% → 14.4%
The figure on the right: for positions added to or trimmed, the change in the number of shares (%); for new and sold ones, the points of the portfolio moved (pp). Below, the portfolio weight before → after. Traded weight: what it bought or sold, excluding price effects.
Top holdings
- AlphabetGOOG26.9%
- NVIDIANVDA19.2%
- IntelINTC14.4%
- Micron TechnologyMU10.9%
- SandiskSNDK9.3%
- AppleAAPL6.2%
- Taiwan Semiconductor ManufacturingTSM4.3%
- Advanced Micro DevicesAMD3.8%
- Amazon.comAMZN2.4%
- Space Exploration TechnologiesSPCX1.1%
- Meta PlatformsMETA0.8%
- Lumentum HoldingsLITE0.6%
- BroadcomAVGOunder 0.1%
“Since”: first quarter of the current run, unbroken until today. In the details, prices are the quarter-end prices of the quarters in which it added shares, per the 13F. The manager may have bought at any price within each quarter; the SEC only publishes the value at quarter end.
Portfolio by sector
- ● Information Technology 69%
- ● Communication Services 28%
- ● Consumer Discretionary 2%
- ● Industrials 1%
How its portfolio changed (8 quarters)
Q3 2026: 13
Q3 2026: 99%
Q3 2026: 16.6%
Traded turnover: the weight it bought plus the weight it sold in the quarter, divided by two, excluding price moves. The plain “turnover” in the header does include that effect. With a free account: the full history and sectors over time.
13F filings with amendments or confidential positions
- 13F Q2 2025 ↗filed Jul 21, 2025Amendment of Jul 29, 2025 (replaces the original) ↗
Stakes above 5% (13D/13G)
Companies where this filer reported holding 5% or more of the shares. It is the figure from its latest filing on each one; history since December 2024.
How we classify it
Type not verified. It meets the portfolio criteria of a concentrated manager, but its type is not verified: we found no official document that is enough to say what kind of entity it is. It may be an investment firm, but also an adviser adding up client accounts, a bank or a family vehicle. It counts in the tallies like the rest; keep that in mind when reading it. How the type is assigned
Managers of a similar size
A 13F portfolio value between a third and three times this one, whatever the type of filer. It is not a comparison of what they hold.
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