CIK: 0001844147
Total reported value
$108.4M
Reporting period: 2026-03-31 · Number of holdings: 28
Rye Brook Capital LLC disclosed 28 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $108.4M and a quarterly turnover rate of 42.4%.
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Rye Brook Capital LLC's disclosed holdings carry a Herfindahl concentration index of 0.089 — mathematically equivalent to about 11 equally-sized positions, well below its 28 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 1.24), with a handful of outsized bets alongside many smaller positions.
Recent activity leans toward adding more aggressively to already-large existing positions than to newly initiated ones (a 2.4 percentage-point tilt) — a pattern consistent with a momentum-following approach.
Sector classification currently covers about 2% of this portfolio's disclosed value; the remainder includes holdings (e.g. unmapped tickers, options, or other security types) not yet covered by our sector mapping.
Trim QQQ
-20.8% -$6.7M
Add XLU
+92.8% $3.3M
Add ETH
+457.7% $2.8M
Trim SMH
-24.7% -$2.4M
Add NXE
+0.2% $1.9M
Trim KWEB
+4.8% -$1.0M
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | QQQ | Invesco Qqq Trust Series 1 | ETF-Tech | 17.94% | -6.49% | -20.81% | |
| 2 | SRUUF | Sprott Physical Uranium Tr | Stock-Other | 14.58% | +0.32% | -0.13% | |
| 3 | SMH | Vaneck Semiconductor ETF | ETF-Other | 8.93% | -2.35% | -24.68% | |
| 4 | NXE | Nexgen Energy LTD | Stock-Other | 8.29% | +1.64% | +0.21% | |
| 5 | KWEB | Kranesh Csi China Internet | ETF-Emerging Markets | 6.46% | -1.02% | +4.81% | |
| 6 | XLI | Ss Industrial Select Sector | ETF-Other | 6.31% | +0.41% | +3.98% | |
| 7 | XLU | St Sr Utl Sl Se Spdr Etf-usd | ETF-Other | 5.96% | +3.05% | +92.84% | |
| 8 | XLB | Ss Materials Select Sector | ETF-Other | 4.61% | +4.61% | NEW | |
| 9 | GLD | Spdr Gold Shares | ETF-Commodities | 4.50% | -0.13% | -9.20% | |
| 10 | JOE | St Joe Co/the | Stock-Other | 3.82% | +0.30% | +4.10% | |
| 11 | ETH | Grayscale Ethereum Staking M | ETF-Other | 3.52% | +2.62% | +457.67% | |
| 12 | FCPT | Four Corners Property Trust | Stock-Real Estate | 2.93% | +0.11% | +2.67% | |
| 13 | IBIT | Ishares Bitcoin Trust ETF | ETF-Crypto | 1.85% | -0.22% | +16.58% | |
| 14 | BE | Bloom Energy Corp- A | Stock-Industrials | 1.69% | +1.69% | NEW | |
| 15 | ECHO | Echostar Corp-a | Stock-Comm Services | 1.44% | +1.44% | NEW | |
| 16 | SCOP | Sprott Physical Copper Trust | Stock-Other | 1.16% | +1.16% | NEW | |
| 17 | TSLA | Tesla INC | Stock-Consumer Disc | 1.09% | +1.09% | NEW | |
| 18 | SLV | Ishares Silver Trust | ETF-Commodities | 1.00% | +1.00% | NEW | |
| 19 | P | Everpure Inc-a | Stock-Tech | 0.60% | +0.60% | NEW | |
| 20 | UUUU | Energy Fuels INC | Stock-Energy | 0.59% | +0.59% | NEW | |
| 21 | ALAB | Astera Labs INC | Stock-Tech | 0.53% | -0.90% | -42.55% | |
| 22 | MP | Mp Materials CORP | Stock-Materials | 0.50% | +0.50% | NEW | |
| 23 | RIOT | Riot Platforms INC | Stock-Financials | 0.49% | -0.01% | +0.31% | |
| 24 | CIBR | First Trust Nasdaq Cybersecu | ETF-Tech | 0.46% | -0.07% | — | |
| 25 | GOOGL | Alphabet Inc-cl A | Stock-Comm Services | 0.27% | -0.02% | — | |
| 26 | MSFT | Microsoft CORP | Stock-Tech | 0.20% | -0.07% | — | |
| 27 | GSOL | Grayscale Solana Staking ETF | ETF-Other | 0.17% | -0.08% | — | |
| 28 | SOLZ | Solana ETF | ETF-Other | 0.11% | +0.11% | NEW |
Performance for Q3 2026
+1%
Performance Last 4 Quarters
+31.5%
Based on 82% of reported portfolio value with available pricing
| Period | Holdings | Total value | Stability | Top holdings |
|---|---|---|---|---|
| 2026-03-31 | 28 | $108.4M | 42 | |
| 2025-12-31 | 27 | $107.0M | 62 | |
| 2025-09-30 | 31 | $192.3M | 82 | |
| 2025-06-30 | 24 | $95.9M | 0 | |
| 2025-03-31 | 20 | $79.8M | 100 | |
| 2024-12-31 | 29 | $83.4M | 0 | |
| 2024-09-30 | 19 | $69.3M | 0 | |
| 2024-06-30 | 25 | $76.0M | 0 | |
| 2024-03-31 | 28 | $170.6M | 0 | |
| 2023-12-31 | 30 | $195.7M | 0 | |
| 2023-09-30 | 28 | $140.5M | 0 | |
| 2023-06-30 | 26 | $211.7M | 0 | |
| 2023-03-31 | 27 | $163.5M | 0 | |
| 2022-12-31 | 23 | $154.2M | 0 | |
| 2022-09-30 | 21 | $136.9M | 0 | |
| 2022-06-30 | 22 | $164.3M | 0 | |
| 2022-03-31 | 32 | $253.3M | 0 | |
| 2021-12-31 | 29 | $390.5M | 0 | |
| 2021-09-30 | 27 | $142.1M | 0 | |
| 2021-06-30 | 27 | $141.4M | 99 | |
| 2021-03-31 | 28 | $137.2M | 65 | |
| 2020-12-31 | 24 | $114.8M | 0 |
Rye Brook Capital LLC's most significant position changes for 2026-03-31: New buy: Ss Materials Select Sector (XLB); Sold out: Grayscale Ethereum Staking E (ETHE); Sold out: Advanced Micro Devices (AMD); New buy: Bloom Energy Corp- A (BE); Sold out: Coherent CORP (COHR).
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | XLU | St Sr Utl Sl Se Spdr Etf-usd | +3.1% | +92.84% | Add |
| 2 | ETH | Grayscale Ethereum Staking M | +2.6% | +457.67% | Add |
| 3 | NXE | Nexgen Energy LTD | +1.6% | +0.21% | Add |
| 4 | XLI | Ss Industrial Select Sector | +0.4% | +3.98% | Add |
| 5 | SRUUF | Sprott Physical Uranium Tr | +0.3% | -0.13% | Trim |
| 6 | JOE | St Joe Co/the | +0.3% | +4.10% | Add |
| 7 | FCPT | Four Corners Property Trust | +0.1% | +2.67% | Add |
| 8 | RIOT | Riot Platforms INC | 0% | +0.31% | Add |
| 9 | GOOGL | Alphabet Inc-cl A | 0% | — | Unchanged |
| 10 | CIBR | First Trust Nasdaq Cybersecu | -0.1% | — | Unchanged |
| 11 | MSFT | Microsoft CORP | -0.1% | — | Unchanged |
| 12 | GSOL | Grayscale Solana Staking ETF | -0.1% | — | Unchanged |
| 13 | GLD | Spdr Gold Shares | -0.1% | -9.20% | Trim |
| 14 | IBIT | Ishares Bitcoin Trust ETF | -0.2% | +16.58% | Add |
| 15 | ALAB | Astera Labs INC | -0.9% | -42.55% | Trim |
| 16 | KWEB | Kranesh Csi China Internet | -1% | +4.81% | Add |
| 17 | SMH | Vaneck Semiconductor ETF | -2.4% | -24.68% | Trim |
| 18 | QQQ | Invesco Qqq Trust Series 1 | -6.5% | -20.81% | Trim |
| 19 | XLB | Ss Materials Select Sector | — | NEW | New buy |
| 20 | ETHE | Grayscale Ethereum Staking E | — | EXIT | Sold out |
| 21 | AMD | Advanced Micro Devices | — | EXIT | Sold out |
| 22 | BE | Bloom Energy Corp- A | — | NEW | New buy |
| 23 | COHR | Coherent CORP | — | EXIT | Sold out |
| 24 | ECHO | Echostar Corp-a | — | NEW | New buy |
| 25 | SCOP | Sprott Physical Copper Trust | — | NEW | New buy |
| 26 | TSLA | Tesla INC | — | NEW | New buy |
| 27 | SLV | Ishares Silver Trust | — | NEW | New buy |
| 28 | BLMN | Bloomin' Brands INC | — | EXIT | Sold out |
| 29 | URNM | Sprott Uranium Miners ETF | — | EXIT | Sold out |
| 30 | ARM | Arm Holdings Plc-adr | — | EXIT | Sold out |
| 31 | P | Everpure Inc-a | — | NEW | New buy |
| 32 | UUUU | Energy Fuels INC | — | NEW | New buy |
| 33 | MP | Mp Materials CORP | — | NEW | New buy |
| 34 | MUB | Ishares National Muni Bond E | — | EXIT | Sold out |
| 35 | SHYM | Ishares Short Duration High | — | EXIT | Sold out |
| 36 | NVDA | Nvidia CORP | — | EXIT | Sold out |
| 37 | SOLZ | Solana ETF | — | NEW | New buy |
| Period | Filed | Type | EDGAR |
|---|---|---|---|
| 2026-03-31 | 2026-04-29 | 13F-HR | View on EDGAR |
| 2025-12-31 | 2026-01-27 | 13F-HR | View on EDGAR |
| 2025-09-30 | 2025-10-21 | 13F-HR | View on EDGAR |
| 2025-06-30 | 2025-07-23 | 13F-HR | View on EDGAR |
| 2025-03-31 | 2025-04-16 | 13F-HR | View on EDGAR |
| 2024-12-31 | 2025-02-03 | 13F-HR | View on EDGAR |
| 2024-09-30 | 2024-10-22 | 13F-HR | View on EDGAR |
| 2024-06-30 | 2024-07-22 | 13F-HR | View on EDGAR |
| 2024-03-31 | 2024-04-11 | 13F-HR | View on EDGAR |
| 2023-12-31 | 2024-01-30 | 13F-HR | View on EDGAR |
| 2023-09-30 | 2023-10-10 | 13F-HR | View on EDGAR |
| 2023-06-30 | 2023-07-24 | 13F-HR | View on EDGAR |
| 2023-03-31 | 2023-04-21 | 13F-HR | View on EDGAR |
| 2022-12-31 | 2023-01-06 | 13F-HR | View on EDGAR |
| 2022-09-30 | 2022-11-03 | 13F-HR | View on EDGAR |
| 2022-06-30 | 2022-07-21 | 13F-HR | View on EDGAR |
| 2022-03-31 | 2022-04-28 | 13F-HR | View on EDGAR |
| 2021-12-31 | 2022-01-12 | 13F-HR | View on EDGAR |
| 2021-09-30 | 2021-10-04 | 13F-HR | View on EDGAR |
| 2021-06-30 | 2021-07-19 | 13F-HR | View on EDGAR |
| 2021-03-31 | 2021-04-09 | 13F-HR | View on EDGAR |
| 2020-12-31 | 2021-02-03 | 13F-HR | View on EDGAR |
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