CIK: 0001800938
Total reported value
$399.7M
Reporting period: 2026-03-31 · Number of holdings: 160
One Charles Private Wealth Services, LLC disclosed 160 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $399.7M and a quarterly turnover rate of 18.4%.
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One Charles Private Wealth Services, LLC's disclosed holdings carry a Herfindahl concentration index of 0.039 — mathematically equivalent to about 25 equally-sized positions, well below its 160 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 2.29), with a handful of outsized bets alongside many smaller positions.
No strong tilt toward either adding to existing winners or initiating outsized new positions was observed in the latest reported quarter.
Sector classification currently covers about 37% 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.
Add TPL
-0.8% $14.0M
Trim GBTC
-0.6% -$4.4M
Add LB
-0.4% $4.7M
Trim BRK-B
-0.4% -$2.5M
Add IEMG
+875.1% $3.5M
Trim ACVA
-0.2% -$3.0M
Showing top 158 holdings (of 160 total)
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | BRK-B | Berkshire Hathaway Inc-cl B | Stock-Other | 11.61% | -1.03% | -0.42% | |
| 2 | TPL | Texas Pacific Land CORP | Stock-Energy | 8.97% | +3.31% | -0.84% | |
| 3 | INFL | Horizon Kinetics Infl Benef | ETF-Other | 6.46% | +0.76% | -0.10% | |
| 4 | VTV | Vanguard Value ETF | ETF-Other | 4.89% | +0.23% | +5.47% | |
| 5 | LB | Landbridge Co Llc-a | Stock-Other | 4.07% | +1.07% | -0.40% | |
| 6 | VUG | Vanguard Growth ETF | ETF-Other | 3.86% | -0.39% | +4.93% | |
| 7 | JAAA | Janus Henderson Aaa Clo ETF | ETF-Other | 3.80% | +0.09% | +6.24% | |
| 8 | GBTC | Grayscale Bitcoin Trust ETF | ETF-Crypto | 3.66% | -1.26% | -0.58% | |
| 9 | SAMT | Strategas Macro Them Opps | ETF-Other | 3.00% | +0.23% | +9.87% | |
| 10 | JSI | Jh Securitized Income ETF | ETF-Other | 2.34% | +0.46% | +30.10% | |
| 11 | XLK | Ss Technology Select Sector | ETF-Tech | 2.17% | -0.29% | -1.54% | |
| 12 | SCHG | Schwab US Large-cap Growth | ETF-Other | 2.01% | -0.31% | +0.09% | |
| 13 | AAPL | Apple INC | Stock-Tech | 1.91% | -0.20% | +0.38% | |
| 14 | TXUE | Thornburg Interntin Eqty ETF | ETF-Other | 1.65% | +0.34% | +26.78% | |
| 15 | SCHB | Schwab US Broad Market ETF | ETF-Other | 1.41% | -0.12% | — | |
| 16 | VGT | Vanguard Info Tech ETF | ETF-Tech | 1.38% | — | +7.28% | |
| 17 | ARKK | Ark Innovation ETF | ETF-Other | 1.20% | -0.22% | -0.17% | |
| 18 | VIG | Vanguard Dividend Apprec ETF | ETF-Other | 1.10% | — | -0.03% | |
| 19 | IEMG | Ishares Core Msci Emerging | ETF-Emerging Markets | 0.97% | +0.87% | +875.11% | |
| 20 | NVDA | Nvidia CORP | Stock-Tech | 0.97% | — | +1.56% | |
| 21 | LRCX | Lam Research CORP | Stock-Tech | 0.95% | +0.16% | -0.12% | |
| 22 | BTC | Grayscale Bitcoin Mini ETF | ETF-Crypto | 0.93% | -0.30% | +1.18% | |
| 23 | JPM | Jpmorgan Chase & Co | Stock-Financials | 0.92% | -0.12% | +0.64% | |
| 24 | ET | Energy Transfer LP | Stock-Energy | 0.91% | +0.08% | -3.87% | |
| 25 | IVV | Ishares Core S&p 500 ETF | ETF-Large Cap & Growth | 0.89% | — | +0.57% | |
| 26 | ACVA | Acv Auctions Inc-a | Stock-Other | 0.83% | -0.80% | -0.16% | |
| 27 | XLV | Ss Health Care Select Sector | ETF-Other | 0.76% | — | -1.55% | |
| 28 | BAC | Bank Of America CORP | Stock-Financials | 0.75% | +0.12% | +14.92% | |
| 29 | SLV | Ishares Silver Trust | ETF-Commodities | 0.74% | — | -5.05% | |
| 30 | EPD | Enterprise Products Partners | Stock-Energy | 0.67% | +0.09% | +0.95% | |
| 31 | RTX | Rtx CORP | Stock-Industrials | 0.63% | — | +1.72% | |
| 32 | XLF | Ss Financial Select Sector | ETF-Other | 0.63% | -0.17% | -8.80% | |
| 33 | XLC | Ss Comm Select Sector Spdr | ETF-Other | 0.61% | — | -0.31% | |
| 34 | MSFT | Microsoft CORP | Stock-Tech | 0.59% | -0.22% | -1.63% | |
| 35 | AMZN | Amazon.com INC | Stock-Consumer Disc | 0.59% | -0.13% | -6.03% | |
| 36 | GLDM | Spdr Gold Minishares Trust | ETF-Commodities | 0.58% | — | -2.95% | |
| 37 | GOOGL | Alphabet Inc-cl A | Stock-Comm Services | 0.58% | -0.08% | -1.67% | |
| 38 | VBR | Vanguard Small-cap Value ETF | ETF-Other | 0.53% | — | -2.24% | |
| 39 | XOM | Exxon Mobil CORP | Stock-Energy | 0.52% | +0.14% | +0.17% | |
| 40 | SPY | Ss Spdr S&p 500 ETF Trust-us | ETF-Large Cap & Growth | 0.51% | — | +2.44% | |
| 41 | VBK | Vanguard Small-cap Grwth ETF | ETF-Other | 0.51% | — | -1.07% | |
| 42 | ARKB | Ark 21shares Bitcoin ETF | ETF-Crypto | 0.49% | -0.19% | -2.51% | |
| 43 | SCHD | Schwab US Dvd Equity ETF | ETF-Other | 0.44% | — | — | |
| 44 | META | Meta Platforms Inc-class A | Stock-Comm Services | 0.42% | -0.09% | -1.50% | |
| 45 | VIS | Vanguard Industrials ETF | ETF-Other | 0.42% | — | +0.53% | |
| 46 | IWM | Ishares Russell 2000 ETF | ETF-Small Cap | 0.42% | — | +0.03% | |
| 47 | VTI | Vanguard Total Stock Mkt ETF | ETF-Other | 0.41% | -0.08% | -9.55% | |
| 48 | XLY | Ss Consumer Disc Select Sect | ETF-Other | 0.41% | — | +3.28% | |
| 49 | MPLX | Mplx LP | Stock-Energy | 0.40% | — | +2.68% | |
| 50 | IEFA | Ishares Core Msci Eafe ETF | ETF-Other | 0.40% | +0.40% | NEW |
Performance for Q3 2026
+3.1%
Performance Last 4 Quarters
+14.4%
Based on 66% of reported portfolio value with available pricing
| Period | Holdings | Total value | Stability | Top holdings |
|---|---|---|---|---|
| 2026-03-31 | 160 | $399.7M | 18 | |
| 2025-12-31 | 172 | $386.8M | 14 | |
| 2025-09-30 | 170 | $380.7M | 30 | |
| 2025-06-30 | 166 | $356.0M | 0 | |
| 2025-03-31 | 148 | $308.9M | 100 | |
| 2024-12-31 | 157 | $297.4M | 0 | |
| 2024-09-30 | 156 | $263.0M | 0 | |
| 2024-06-30 | 151 | $240.3M | 0 | |
| 2024-03-31 | 146 | $229.7M | 0 | |
| 2023-12-31 | 140 | $188.9M | 0 | |
| 2023-09-30 | 127 | $171.1M | 0 | |
| 2023-06-30 | 126 | $172.1M | 0 | |
| 2023-03-31 | 120 | $161.0M | 0 | |
| 2022-12-31 | 117 | $154.5M | 0 | |
| 2022-09-30 | 129 | $150.9M | 0 | |
| 2022-06-30 | 127 | $148.4M | 0 | |
| 2022-03-31 | 113 | $160.7M | 0 | |
| 2021-12-31 | 117 | $176.5M | 0 | |
| 2021-09-30 | 125 | $173.6M | 0 | |
| 2021-06-30 | 113 | $149.2M | 100 | |
| 2021-03-31 | 34 | $21.8M | 79 | |
| 2020-12-31 | 52 | $10.5M | 100 | |
| 2020-09-30 | 35 | $162.6M | 46 | |
| 2020-06-30 | 94 | $193.1M | 89 | |
| 2020-03-31 | 31 | $121.2M | 23 | |
| 2019-12-31 | 35 | $151.7M | — |
One Charles Private Wealth Services, LLC's most significant position changes for 2026-03-31: New buy: Ishares Core Msci Eafe ETF (IEFA); Sold out: Horizon Kinetics Japan Owner (JAPN); Sold out: Confluent Inc-class A (8QR); New buy: Energy Transfer LP (ET 9.25 PERP I); Sold out: Vertex Pharmaceuticals INC (VRTX).
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | TPL | Texas Pacific Land CORP | +3.3% | -0.84% | Trim |
| 2 | LB | Landbridge Co Llc-a | +1.1% | -0.40% | Trim |
| 3 | IEMG | Ishares Core Msci Emerging | +0.9% | +875.11% | Add |
| 4 | INFL | Horizon Kinetics Infl Benef | +0.8% | -0.10% | Trim |
| 5 | JSI | Jh Securitized Income ETF | +0.5% | +30.10% | Add |
| 6 | TXUE | Thornburg Interntin Eqty ETF | +0.3% | +26.78% | Add |
| 7 | VTV | Vanguard Value ETF | +0.2% | +5.47% | Add |
| 8 | SAMT | Strategas Macro Them Opps | +0.2% | +9.87% | Add |
| 9 | LRCX | Lam Research CORP | +0.2% | -0.12% | Trim |
| 10 | XOM | Exxon Mobil CORP | +0.1% | +0.17% | Add |
| 11 | BAC | Bank Of America CORP | +0.1% | +14.92% | Add |
| 12 | JAAA | Janus Henderson Aaa Clo ETF | +0.1% | +6.24% | Add |
| 13 | EPD | Enterprise Products Partners | +0.1% | +0.95% | Add |
| 14 | ET | Energy Transfer LP | +0.1% | -3.87% | Trim |
| 15 | XLE | Ss Energy Select Sector | +0.1% | -2.19% | Trim |
| 16 | IRM | Iron Mountain INC | +0.1% | -1.31% | Trim |
| 17 | IUSG | Ishares Core S&p U.s. Growth | -0.1% | -22.33% | Trim |
| 18 | VTI | Vanguard Total Stock Mkt ETF | -0.1% | -9.55% | Trim |
| 19 | GOOGL | Alphabet Inc-cl A | -0.1% | -1.67% | Trim |
| 20 | META | Meta Platforms Inc-class A | -0.1% | -1.50% | Trim |
| 21 | JPM | Jpmorgan Chase & Co | -0.1% | +0.64% | Add |
| 22 | SCHB | Schwab US Broad Market ETF | -0.1% | — | Unchanged |
| 23 | AMZN | Amazon.com INC | -0.1% | -6.03% | Trim |
| 24 | XLF | Ss Financial Select Sector | -0.2% | -8.80% | Trim |
| 25 | ARKB | Ark 21shares Bitcoin ETF | -0.2% | -2.51% | Trim |
| 26 | AAPL | Apple INC | -0.2% | +0.38% | Add |
| 27 | MSFT | Microsoft CORP | -0.2% | -1.63% | Trim |
| 28 | ARKK | Ark Innovation ETF | -0.2% | -0.17% | Trim |
| 29 | XLK | Ss Technology Select Sector | -0.3% | -1.54% | Trim |
| 30 | BTC | Grayscale Bitcoin Mini ETF | -0.3% | +1.18% | Add |
| 31 | SCHG | Schwab US Large-cap Growth | -0.3% | +0.09% | Add |
| 32 | VUG | Vanguard Growth ETF | -0.4% | +4.93% | Add |
| 33 | ACVA | Acv Auctions Inc-a | -0.8% | -0.16% | Trim |
| 34 | BRK-B | Berkshire Hathaway Inc-cl B | -1% | -0.42% | Trim |
| 35 | GBTC | Grayscale Bitcoin Trust ETF | -1.3% | -0.58% | Trim |
| 36 | IEFA | Ishares Core Msci Eafe ETF | — | NEW | New buy |
| 37 | JAPN | Horizon Kinetics Japan Owner | — | EXIT | Sold out |
| 38 | 8QR | Confluent Inc-class A | — | EXIT | Sold out |
| 39 | ET 9.25 PERP I | Energy Transfer LP | — | NEW | New buy |
| 40 | VRTX | Vertex Pharmaceuticals INC | — | EXIT | Sold out |
| 41 | RSPH | Invesco S&p 500 Equal Weight | — | EXIT | Sold out |
| 42 | BXSL | Blackstone Secured Lending F | — | EXIT | Sold out |
| 43 | FICO | Fair Isaac CORP | — | EXIT | Sold out |
| 44 | IXN | Ishares Global Tech ETF | — | NEW | New buy |
| 45 | TTD | Trade Desk Inc/the -class A | — | EXIT | Sold out |
| 46 | ROST | Ross Stores INC | — | NEW | New buy |
| 47 | IGM | Ishares Expanded Tech Sector | — | EXIT | Sold out |
| 48 | BKNG | Booking Holdings INC | — | EXIT | Sold out |
| 49 | ETHE | Grayscale Ethereum Staking E | — | EXIT | Sold out |
| 50 | UNH | Unitedhealth Group INC | — | EXIT | Sold out |
| Period | Filed | Type | EDGAR |
|---|---|---|---|
| 2026-03-31 | 2026-05-07 | 13F-HR | View on EDGAR |
| 2025-12-31 | 2026-02-06 | 13F-HR | View on EDGAR |
| 2025-09-30 | 2025-11-12 | 13F-HR | View on EDGAR |
| 2025-06-30 | 2025-08-12 | 13F-HR | View on EDGAR |
| 2025-03-31 | 2025-05-08 | 13F-HR | View on EDGAR |
| 2024-12-31 | 2025-02-11 | 13F-HR | View on EDGAR |
| 2024-09-30 | 2024-11-12 | 13F-HR | View on EDGAR |
| 2024-06-30 | 2024-08-14 | 13F-HR | View on EDGAR |
| 2024-03-31 | 2024-05-14 | 13F-HR | View on EDGAR |
| 2023-12-31 | 2024-02-13 | Amendment | View on EDGAR |
| 2023-12-31 | 2024-02-06 | 13F-HR | View on EDGAR |
| 2023-09-30 | 2023-11-13 | 13F-HR | View on EDGAR |
| 2023-06-30 | 2023-08-08 | 13F-HR | View on EDGAR |
| 2023-03-31 | 2023-05-04 | 13F-HR | View on EDGAR |
| 2022-12-31 | 2023-02-06 | 13F-HR | View on EDGAR |
| 2022-09-30 | 2022-11-09 | 13F-HR | View on EDGAR |
| 2022-06-30 | 2022-08-08 | 13F-HR | View on EDGAR |
| 2022-03-31 | 2022-05-02 | 13F-HR | View on EDGAR |
| 2021-12-31 | 2022-01-27 | 13F-HR | View on EDGAR |
| 2021-09-30 | 2021-11-03 | 13F-HR | View on EDGAR |
| 2021-06-30 | 2021-08-10 | 13F-HR | View on EDGAR |
| 2021-03-31 | 2021-04-27 | 13F-HR | View on EDGAR |
| 2020-12-31 | 2021-01-29 | 13F-HR | View on EDGAR |
| 2020-09-30 | 2020-10-20 | 13F-HR | View on EDGAR |
| 2020-06-30 | 2020-08-12 | 13F-HR | View on EDGAR |
| 2020-03-31 | 2020-05-12 | 13F-HR | View on EDGAR |
| 2019-12-31 | 2020-02-11 | 13F-HR | View on EDGAR |
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