Rockingstone Advisors LLC

RIA/Wealth

Rockingstone Advisors LLC is a RIA/Wealth based in Great Barrington, MA led by Eric Richard Katzman, reporting $285.8M in AUM as of Q3 2025 with 48% ETF concentration.

CIOEric Richard Katzman

Portfolio Value: $202.7M
Positions: 107
Top Holding: JPST at 4.58%
Last Reported: Q3 2025

Address292 Main Street, Suite 32, Great Barrington, MA, 01230, United States

Top Holdings

Largest long holdings in Rockingstone Advisors LLC's portfolio (29.6% of total portfolio)

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Holding	Sector	Position	Weight	Traded	Ownership	Owned Since
1 JPMorgan Ultra-Short Income JPST	ETF ETF	$9.3M	4.58%	+$2.3M Bought	— 182.8K shares	Q4 2022 Held for 2y 11m
2 Nvidia NVDA	Semiconductors Technology	$7.5M	3.71%	-$850.4K Sold	0.00% 40.3K shares	Q4 2022 Held for 2y 11m
3 Celestica CLS	Hardware, Equipment & Parts Technology	$6.4M	3.17%	-$1.1M Sold	0.02% 26.1K shares	Q2 2024 Held for 1y 5m
4 Vanguard Short-Term Treasury VGSH	ETF ETF	$6.4M	3.16%	-$15.6K Sold	— 108.7K shares	Q1 2023 Held for 2y 8m
5 Vanguard Total Stock Market VTI	ETF ETF	$5.6M	2.75%	-$349.5K Sold	— 17.0K shares	Q4 2022 Held for 2y 11m
6 Technology Select Sector SPDR Fund XLK	ETF ETF	$5.1M	2.50%	-$177.6K Sold	— 18.0K shares	Q4 2022 Held for 2y 11m
7 Microsoft MSFT	Software - Infrastructure Technology	$5.0M	2.46%	-$6.7K Sold	0.00% 9.6K shares	Q4 2022 Held for 2y 11m
8 Apple AAPL	Consumer Electronics Technology	$4.9M	2.44%	+$13.5K Bought	0.00% 19.4K shares	Q4 2022 Held for 2y 11m
9 iShares Russell 2000 IWM	ETF ETF	$4.9M	2.43%	+$435.5K Bought	— 20.4K shares	Q4 2022 Held for 2y 11m
10 SPDR S&P 500 ETF Trust SPY	ETF ETF	$4.8M	2.38%	-$70.6K Sold	— 7.3K shares	Q4 2022 Held for 2y 11m

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Changes

Portfolio activity, position movements, and quarter-over-quarter changes in Rockingstone Advisors LLC's latest filing

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Market Value

$202.7M

Prior: $190.2M

Q/Q Change

+6.55%

+$12.5M

Net Flows % of MV

+1.01%

Turnover Ratio

4.0%

New Purchases

1 stocks

$3.2M

Added To

32 stocks

+$5.6M

Sold Out Of

1 stocks

$1.5M

Reduced Holdings

56 stocks

-$5.2M

Increased Positions

Position	Shares Δ	Change
1 Omnicom Group OMC	New	0 → 39.0K +$3.2M
2 JPMorgan Ultra-Short Income JPST	+32.4%	138.1K → 182.8K +$2.3M
3 Boeing BA	+29.36%	2.7K → 3.5K +$172.0K
4 EFV iShares MSCI EAFE Value EFV	+26.42%	16.8K → 21.2K +$300.1K
5 Vanguard Mid-Cap Value VOE	+24.97%	4.5K → 5.6K +$194.7K

Decreased Positions

Position	Shares Δ	Change
1 UnitedHealth Group UNH	Sold	4.8K → 0 −$1.5M
2 Caterpillar CAT	-28.44%	1.3K → 956.0 −$181.3K
3 PepsiCo PEP	-19.96%	4.9K → 3.9K −$138.3K
4 Home Depot HD	-18.95%	2.4K → 2.0K −$186.4K
5 iShares Biotechnology IBB	-17.58%	4.0K → 3.3K −$102.5K