One Charles Private Wealth Services, LLC

RIA/Wealth

One Charles Private Wealth Services, LLC is a RIA/Wealth based in Hingham, MA led by Paul Andrew Squarcia, reporting $936.4M in AUM as of Q3 2025 with 45% ETF concentration and 53% concentrated in top 10 holdings.

FounderPaul Andrew Squarcia

Portfolio Value: $377.0M
Positions: 165
Top Holding: BRK.B at 12.94%
Last Reported: Q3 2025

Address99 Derby Street, Suite 100, Hingham, MA, 02043, United States

Top Holdings

Largest long holdings in One Charles Private Wealth Services, LLC's portfolio (53% of total portfolio)

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Holding	Sector	Position	Weight	Traded	Ownership	Owned Since
1 Berkshire Hathaway BRK.B	Insurance - Diversified Financial Services	$48.8M	12.94%	+$509.8K Bought	0.00% 97.0K shares	Q2 2021 Held for 4y 5m
2 GBTC Grayscale Bitcoin Trust GBTC	Unknown Unknown	$26.0M	6.89%	-$213.1K Sold	— 289.4K shares	Q1 2024 Held for 1y 8m
3 Texas Pacific Land TPL	Oil & Gas Exploration & Production Energy	$24.1M	6.39%	-$196.1K Sold	0.11% 25.8K shares	Q1 2021 Held for 4y 8m
4 Horizon Kinetics Inflation Beneficiaries INFL	ETF ETF	$22.4M	5.95%	+$225.6K Bought	— 501.8K shares	Q1 2021 Held for 4y 8m
5 Vanguard Value VTV	ETF ETF	$17.0M	4.51%	+$691.7K Bought	— 91.2K shares	Q4 2019 Held for 5y 11m
6 Vanguard Growth VUG	ETF ETF	$15.4M	4.09%	+$942.0K Bought	— 32.2K shares	Q4 2019 Held for 5y 11m
7 Janus Henderson AAA CLO JAAA	ETF ETF	$14.2M	3.77%	+$311.7K Bought	— 280.1K shares	Q2 2024 Held for 1y 5m
8 LandBridge Company LB	Unknown Unknown	$13.1M	3.47%	+$3.6M Bought	0.97% 245.0K shares	Q4 2024 Held for 11 months
9 Technology Select Sector SPDR Fund XLK	ETF ETF	$9.5M	2.52%	-$82.0K Sold	— 33.7K shares	Q4 2020 Held for 4y 11m
10 ACV Auctions Inc. ACVA	Auto - Dealerships Consumer Cyclical	$9.4M	2.49%	-$495.4K Sold	0.55% 945.8K shares	Q2 2021 Held for 4y 5m

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Changes

Portfolio activity, position movements, and quarter-over-quarter changes in One Charles Private Wealth Services, LLC's latest filing

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Market Value

$377.0M

Prior: $354.7M

Q/Q Change

+6.27%

+$22.3M

Net Flows % of MV

+3.59%

Turnover Ratio

3.05%

New Purchases

4 stocks

$6.3M

Added To

60 stocks

+$11.6M

Sold Out Of

3 stocks

$689.1K

Reduced Holdings

69 stocks

-$3.7M

Increased Positions

Position	Shares Δ	Change
1 Strategas Macro Thematic Opportunities SAMT	New	0 → 143.4K +$5.3M
2 Schwab International Equity SCHF	New	0 → 18.4K +$428.1K
3 ETH Grayscale Ethereum Mini Trust ETH	New	0 → 6.7K +$263.4K
4 Goldman Sachs Group GS	New	0 → 286.0 +$227.9K
5 LandBridge Company LB	+37.49%	178.2K → 245.0K +$3.6M

Decreased Positions

Position	Shares Δ	Change
1 Ross Stores ROST	Sold	2.1K → 0 −$264.1K
2 Walt Disney DIS	Sold	1.8K → 0 −$221.2K
3 Dover DOV	Sold	1.1K → 0 −$203.8K
4 Palantir Technologies Inc. PLTR	-30.06%	3.1K → 2.2K −$170.4K
5 Thermo Fisher Scientific TMO	-28.53%	1.1K → 814.0 −$157.7K

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Analytics

Portfolio insights and performance metrics for One Charles Private Wealth Services, LLC

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Sector Allocation

ETF

45.40%

Financial Services

15.40%

Energy

8.80%

Technology

6.40%

Consumer Cyclical

4.00%

Industrials

1.60%

Communication Services

1.60%

Healthcare

1.20%

Consumer Defensive

0.80%

Real Estate

0.60%

Basic Materials

0.10%

Utilities

0.10%

Market Cap Distribution

Mega Cap (> $200B)

25.64%

Large Cap ($10B - $200B)

11.80%

Mid Cap ($2B - $10B)

0.40%

Small Cap ($300M - $2B)

6.22%

Micro Cap ($50M - $300M)

0.00%

Nano Cap (< $50M)

0.00%

N/A (ETF or Unknown)

55.94%

Portfolio Concentration

Top 10 Holdings %

53.02%

Top 20 Holdings %

68.86%

Top 50 Holdings %

86.21%

Top 100 Holdings %

95.48%