Oriental Harbor Investment Master Fund
Oriental Harbor Investment Master Fund declares $1.6B in 13 of the 220 AI and semiconductor companies tracked on Silicon Floor, as of Jun 30, 2026 (Form 13F): 100.0% of its $1.6B 13F portfolio. Largest positions: Alphabet (0.01% of the company) and Intel (0.04% of the company). Over time: $1.6B in 13 of these companies for Q2 2026, against $717.1M in 6 for Q3 2024 (13F values as filed). From Mar 31, 2026 to Jun 30, 2026, it bought $897.6M and sold $421.0M of these stocks, at the quarter's prices: a net purchase of $476.6M; 7 new positions and 1 sold out.
Performance of its AI picks
The AI-stock portfolio Oriental Harbor Investment Master Fund declared for Q2 2026 (Form 13F), held unchanged, returned -5.5% in Q3 2026 (SMH -7.1%), ranked 1549 of 1,776 active managers. Over the last 12 months, quarter after quarter: +14.6% (SMH +87.2%), ranked 1270 of 1,356 active managers. Trades made during a quarter are not visible in 13F filings: this measures its declared picks, not the return of its funds.
Largest positions
- Alphabet (GOOGL) — $370.9M: 1.0M shares, 0.01% of the company, 22.5% of its portfolio (trimmed this quarter); held since Q3 2024
- Intel (INTC) — $258.2M: 1.8M shares, 0.04% of the company, 15.7% of its portfolio (new position this quarter)
- NVIDIA (NVDA) — $216.9M: 1.1M shares, 0.00% of the company, 13.1% of its portfolio (trimmed this quarter); held since Q3 2024
- Sandisk (SNDK) — $175.7M: 77,276 shares, 0.05% of the company, 10.7% of its portfolio (new position this quarter)
- Micron (MU) — $170.4M: 147,587 shares, 0.01% of the company, 10.3% of its portfolio (added this quarter); held since Q1 2026
- AMD (AMD) — $146.1M: 251,437 shares, 0.02% of the company, 8.9% of its portfolio (new position this quarter)
- Marvell (MRVL) — $130.8M: 439,119 shares, 0.05% of the company, 7.9% of its portfolio (new position this quarter)
- TSMC (TSM) — $65.6M: 137,289 shares, 0.00% of the company, 4.0% of its portfolio (trimmed this quarter); held since Q1 2026
- Arm Holdings (ARM) — $53.4M: 150,573 shares, 0.01% of the company, 3.2% of its portfolio (new position this quarter)
- Broadcom (AVGO) — $24.9M: 65,947 shares, 0.00% of the company, 1.5% of its portfolio (new position this quarter)
- Lumentum (LITE) — $22.4M: 26,122 shares, 0.03% of the company, 1.4% of its portfolio (new position this quarter)
- Amazon (AMZN) — $14.3M: 59,897 shares, 0.00% of the company, 0.87% of its portfolio (trimmed this quarter); held since Q3 2024
- Meta Platforms (META) — $135,752.00: 241 shares, 0.00% of the company, 0.01% of its portfolio (trimmed this quarter); held since Q3 2024
By sector
- Chips & compute — $895.8M, 54% of its AI holdings, 7 companies
- Cloud & AI giants — $385.3M, 23% of its AI holdings, 3 companies
- Memory & storage — $346.1M, 21% of its AI holdings, 2 companies
- Optics — $22.4M, 1% of its AI holdings, 1 company
Biggest changes this quarter
- opened a position in Intel (INTC): +$258.2M at the quarter's price
- opened a position in Sandisk (SNDK): +$175.7M at the quarter's price
- trimmed Alphabet (GOOGL): -$152.7M at the quarter's price
- opened a position in AMD (AMD): +$146.1M at the quarter's price
- opened a position in Marvell (MRVL): +$130.8M at the quarter's price
- sold out of Apple (AAPL): -$87.4M at the quarter's price
- added to Micron (MU): +$86.1M at the quarter's price
- trimmed Meta Platforms (META): -$76.9M at the quarter's price
- opened a position in Arm Holdings (ARM): +$53.4M at the quarter's price
- trimmed NVIDIA (NVDA): -$40.4M at the quarter's price
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