Skip to main content

Birnam Oak Advisors, LP

Location
New York, NY
Portfolio Value
Small $381,961,253
Diversification
Diversified
Filing Date
Global Rank
#2,732 / 8,232 ▲ 1506
Top Industry
Railroads 14.4%
3Y Alpha vs SPY
-29.4%
Period ended 2 months ago
Filed May 12, 2026 · 33d
6 quarters · since Dec 2024

Clone Performance

Feb 2025–Jun 2026 · vs SPY

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

Cloned portfolio
-15.9%
SPY
+23.4%
Annualised alpha
-29.4%
Max drawdown
−32.8%

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

26 positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025
Top Position
16.2%
−2.7 pts
Top 5
57.8%
−12.4 pts
Top 10
86.2%
−10.4 pts
HHI
907
Dec 2024 → Mar 2026 · range 907 – 7,248
Diversified−320

Portfolio Trend

6 quarters · across all stocks

Sector Breakdown

As of Mar 31, 2026
Sector % Portfolio Value
Industrials 25.7% $98,114,925
Unclassified 21.0% $80,241,920
Technology 15.6% $59,725,720
Communication Services 13.3% $50,799,337
Healthcare 12.3% $47,023,149
Consumer Defensive 6.4% $24,347,551
Financial Services 2.7% $10,407,604
Utilities 2.2% $8,573,158
Consumer Cyclical 0.7% $2,727,889

Last Quarter's Activity

Export CSV
Mar 31, 2026 vs Dec 31, 2025

Added To

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

Trimmed

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

New Positions

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

Sold Out

Positions the filer fully exited
5 positions
Ticker Shares Value Open

Portfolio Positions

Export CSV View 13F filing
26 positions · $381,961,253 total · as of Mar 31, 2026
Ticker Company Shares Value (USD) % of Portfolio History