Oriental Harbor Investment Master Fund 13F: Quarter-over-Quarter Portfolio Changes
Oriental Harbor Investment Master Fund reported a disclosed portfolio value of approximately $1.5 billion in its latest SEC Form 13F-HR filing for Q3 2026, down 11.0% quarter on quarter. Over the quarter, the fund initiated 2 new positions, bought more shares in 7 holdings, trimmed 4 holdings, and exited 2 positions.
Oriental Harbor Investment Master Fund's top buy was a new stake in Apple (AAPL), equal to 6.2% of the disclosed portfolio. Its top sell was Marvell Technology (MRVL). The fund exited the position completely after it had accounted for 7.9% of the previous portfolio.
New PositionsQ3 2026
Securities disclosed for the first time in Q3 2026 that were not present in the prior 13F-HR filing.
| Company | Ticker | Initial Portfolio Weight | History |
|---|---|---|---|
| APPLE INC | AAPL | 6.2% | History → |
| SPACE EXPLORATION TECHNOLOGY | SPCX | 1.1% | History → |
Top BuysQ3 2026
The fund's top buys among existing positions in Q3 2026. Ranked by portfolio-weight impact, with the percentage of additional shares shown separately.
| Company | Ticker | Portfolio Weight Change | More Shares | History |
|---|---|---|---|---|
| META PLATFORMS INC | META | +0.8% | +6694.2% | Holders → |
| AMAZON COM INC | AMZN | +1.5% | +135.4% | History → |
| NVIDIA CORPORATION | NVDA | +6.0% | +13.7% | History → |
| ALPHABET INC | GOOG | +4.4% | +10.5% | History → |
| MICRON TECHNOLOGY INC | MU | +0.6% | +2.2% | History → |
| SANDISK CORP | SNDK | -1.3% | +1.9% | History → |
| TAIWAN SEMICONDUCTOR MANUFAC | TSM | +0.3% | +0.3% | History → |
Top SellsQ3 2026
The fund's top sells among positions it retained in Q3 2026. Ranked by portfolio-weight impact. Full exits are listed separately.
| Company | Ticker | Portfolio Weight Change | Shares Sold | History |
|---|---|---|---|---|
| BROADCOM | AVGO | -1.5% | 99.4% | Holders → |
| ADVANCED MICRO DEVICES INC | AMD | -5.0% | 63.6% | History → |
| LUMENTUM HLDGS INC | LITE | -0.7% | 62.5% | Holders → |
| INTEL CORP | INTC | -1.3% | 4.9% | History → |
Full ExitsQ3 2026
Positions present in the prior 13F-HR filing that no longer appear in Q3 2026.
| Company | Ticker | Last-Reported Portfolio Weight |
|---|---|---|
| MARVELL TECHNOLOGY INC | MRVL | 7.9% |
| ARM HOLDINGS PLC | ARM | 3.2% |
Net Portfolio Value ChangeQ3 2026
- $1.6BPrior quarter
- $1.5BCurrent quarter
- $-0.2BNet delta
- -11.0%% change
Methodology & FAQ
How Oriental Harbor Investment Master Fund Quarterly Changes Are Computed
All deltas are sourced from sequential SEC Form 13F-HR filings for Oriental Harbor Investment Master Fund: each row joins the most recent filing against the immediately preceding quarterly filing for the same fund. Share-count changes reflect reported trading activity, while portfolio weights can also move because of market price changes. Portfolio weights are normalized to exclude listed options for comparability. A complete description, including how confidential treatment filings are handled, is documented in the Methodology.
What stocks did Oriental Harbor Investment Master Fund buy in Q3 2026?
In Q3 2026, Oriental Harbor Investment Master Fund initiated 2 new positions (APPLE INC (AAPL), SPACE EXPLORATION TECHNOLOGY (SPCX)); bought more shares of META PLATFORMS INC (META), AMAZON COM INC (AMZN), NVIDIA CORPORATION (NVDA), ALPHABET INC (GOOG), MICRON TECHNOLOGY INC (MU) (the largest 5 of 7 adds).
What stocks did Oriental Harbor Investment Master Fund sell in Q3 2026?
In Q3 2026, Oriental Harbor Investment Master Fund fully sold 2 positions (MARVELL TECHNOLOGY INC (MRVL), ARM HOLDINGS PLC (ARM)); reduced holdings in BROADCOM (AVGO), ADVANCED MICRO DEVICES INC (AMD), LUMENTUM HLDGS INC (LITE), INTEL CORP (INTC).
Which positions did Oriental Harbor Investment Master Fund initiate in Q3 2026?
Oriental Harbor Investment Master Fund established 2 new positions in Q3 2026: APPLE INC (AAPL, 6.2%), SPACE EXPLORATION TECHNOLOGY (SPCX, 1.1%).
Which existing positions saw the largest allocation increases for Oriental Harbor Investment Master Fund in Q3 2026?
Of 7 existing positions with share-count increases in Q3 2026, the largest were: META PLATFORMS INC (META, +0.8% weight, +6694.2% shares), AMAZON COM INC (AMZN, +1.5% weight, +135.4% shares), NVIDIA CORPORATION (NVDA, +6.0% weight, +13.7% shares), ALPHABET INC (GOOG, +4.4% weight, +10.5% shares), MICRON TECHNOLOGY INC (MU, +0.6% weight, +2.2% shares), SANDISK CORP (SNDK, -1.3% weight, +1.9% shares), TAIWAN SEMICONDUCTOR MANUFAC (TSM, +0.3% weight, +0.3% shares).
Which positions did Oriental Harbor Investment Master Fund fully exit in Q3 2026?
Oriental Harbor Investment Master Fund fully exited 2 positions in Q3 2026: MARVELL TECHNOLOGY INC (MRVL, last-reported weight 7.9%), ARM HOLDINGS PLC (ARM, last-reported weight 3.2%).
Which existing positions saw the largest allocation reductions for Oriental Harbor Investment Master Fund in Q3 2026?
Of 4 existing positions with share-count reductions in Q3 2026, the largest were: BROADCOM (AVGO, -1.5% weight, -99.4% shares), ADVANCED MICRO DEVICES INC (AMD, -5.0% weight, -63.6% shares), LUMENTUM HLDGS INC (LITE, -0.7% weight, -62.5% shares), INTEL CORP (INTC, -1.3% weight, -4.9% shares).
Do quarter-over-quarter 13F allocation changes constitute explicit trading signals?
No. Quarter-over-quarter changes reflect a combination of active trading and market price movement. A weight increase can result from price appreciation alone, without the manager adding shares. Share-count delta is the cleaner indicator of explicit trading activity. All deltas on this page are sourced from sequential SEC Form 13F-HR filings.