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J.M. Arbour, LLC

Location
Gardiner, ME
Portfolio Value
Micro $41,260,703
Diversification
Diversified
Filing Date
Global Rank
#7,061 / 8,603 ▲ 140 · as of Mar 2026
Top Industry
Semiconductors 6.3%
3Y Alpha vs SPY
-14.1%
Period ended 3 months ago
Filed Apr 21, 2026 · 3mo
2 quarters · since Dec 2025

Clone Performance

Feb 2026–Jul 2026 · vs SPY

Hypothetical growth of cloning every reported 13F position and rebalancing on each filing, indexed to the same start.

Cloned portfolio
+8.5%
SPY
+9.6%
Annualised alpha
-3.4%
Max drawdown
−6.4%

Estimate. 13F holdings are quarter-lagged and long-only, so the clone rebalances about 45 days after each period end — when the filing becomes public — and excludes options and short positions. Past performance does not predict future results.

Portfolio Concentration

77 positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025
Top Position
4.8%
−0.2 pts
Top 5
18.2%
−1.7 pts
Top 10
30.9%
−3.5 pts
HHI
189
Dec 2025 → Mar 2026 · range 189 – 211
Diversified−22

Portfolio Trend

2 quarters · across all stocks

Sector Breakdown

As of Mar 31, 2026
Sector % Portfolio Value
Technology 24.7% $10,198,062
Financial Services 21.0% $8,652,900
Energy 12.3% $5,076,526
Healthcare 10.1% $4,176,164
Communication Services 9.6% $3,975,122
Industrials 6.5% $2,684,998
Consumer Cyclical 5.4% $2,237,126
Real Estate 4.7% $1,950,858
Consumer Defensive 3.4% $1,387,109
Unclassified 1.2% $502,599
Utilities 1.0% $419,239

Last Quarter's Activity

Export CSV
Mar 31, 2026 vs Dec 31, 2025

Added To

Positions the filer increased
25 positions
Ticker Δ Shares Shares Value Open

Trimmed

Positions the filer reduced
25 positions
Ticker Δ Shares Shares Value Open

New Positions

Positions the filer opened this quarter
12 positions
Ticker Shares Value Open

Sold Out

Positions the filer fully exited
6 positions
Ticker Shares Value Open

Portfolio Positions

Export CSV View 13F filing
77 positions · $41,260,703 total · as of Mar 31, 2026
Showing 1–50 of 77 positions by value · page 1 of 2
Ticker Company Shares Value (USD) % of Portfolio History