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Weiss Asset Management LP

Location
BOSTON, MA
Portfolio Value
Small $133,523,256
Diversification
Diversified
Filing Date
Global Rank
#742 / 8,578 ▼ 101
Top Industry
Semiconductors 29.2%
3Y Alpha vs SPY
-10.5%
Period ended 3 months ago
Filed May 15, 2026 · 32d
25 quarters · since Mar 2020

Clone Performance

Jun 2023–Jun 2026 · vs SPY

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

Cloned portfolio
+30.5%
SPY
+78.1%
Annualised alpha
-12.0%
Max drawdown
−27.2%

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

408 positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025
Top Position
26.9%
+4.4 pts
Top 5
41.2%
−0.9 pts
Top 10
49.5%
+1.1 pts
HHI
812
Jun 2023 → Mar 2026 · range 147 – 1,486
Diversified+151

Portfolio Trend

25 quarters · across all stocks

Sector Breakdown

As of Mar 31, 2026
Sector % Portfolio Value
Technology 43.5% $1,880,397,789
Financial Services 16.3% $707,403,934
Healthcare 12.7% $549,787,616
Industrials 4.8% $206,095,109
Consumer Cyclical 3.9% $168,642,298
Energy 3.7% $159,020,275
Real Estate 3.3% $141,237,632
Unclassified 3.3% $140,949,956
Basic Materials 3.1% $133,523,256
Consumer Defensive 2.4% $102,066,491
Communication Services 1.8% $78,867,211
Utilities 1.4% $59,437,379

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
25 positions
Ticker Shares Value Open

Sold Out

Positions the filer fully exited
25 positions
Ticker Shares Value Open

Portfolio Positions

Export CSV View 13F filing
27 positions · $133,523,256 total · Basic Materials only · as of Mar 31, 2026
Ticker Company Shares Value (USD) % of Portfolio History