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Weiss Asset Management LP

Confidential treatment requested — holdings omitted from public disclosure

Institutional InvestorSimilar funds →SEC EDGAR: CIK 1357550
Institutional-grade research for retail investors

Sector Allocation

  • Technology40.1%$3.6B
  • Financials16.8%$1.5B
  • Other13.0%$1.2B
  • Industrials7.3%$654.8M
  • Healthcare7.0%$628.0M
  • Consumer Discretionary3.9%$351.8M
  • Utilities3.0%$272.2M
  • Materials2.5%$222.6M
  • Real Estate2.0%$180.2M
  • Energy2.0%$174.9M

AUM History

13fpro.ai/research/fund/weiss-asset-management-lp-1357550

Conviction and streaks

Stable · top 10 = 38.5%

From the fund's last 12 quarters of 13F filings: positions held longest at size, and names it added to or trimmed several quarters running.

NVDA$NVDAConviction hold11.8% weight · held 8 quartersMU$MUConviction hold9.6% weight · held 4 quartersSMCI$SMCIConviction hold2.4% weight · held 6 quartersTSLA$TSLAConviction hold2.1% weight · held 6 quartersTBPH$TBPHConviction hold1.4% weight · held 10 quartersVRSK$VRSKAccumulating+451% shares · 4 quarters running$Accumulating+173% shares · 3 quarters runningSTLD$STLDAccumulating+3282% shares · 3 quarters runningRCL$RCLAccumulating+2172% shares · 3 quarters runningAR$ARAccumulating+1757% shares · 3 quarters runningMSTR$MSTRTrimming-72% shares · 4 quarters runningRUN$RUNTrimming-91% shares · 4 quarters runningIBIT$IBITTrimming-86% shares · 3 quarters runningCNC$CNCTrimming-69% shares · 3 quarters runningENPH$ENPHTrimming-91% shares · 3 quarters running

Largest positions — Q2 2026

Top 20 stock positions. Options are left out: 13F reports them at the underlying's value.

13fpro.ai/research/fund/weiss-asset-management-lp-1357550

Weiss Asset Management LP 13F holdings — Q2 2026

$9.5B portfolio (+61.4% QoQ) · 624 holdings · Q2 2026 13F · top 10 are 39% of the stock portfolio

Includes $617.1M of put/call options ($610.4M puts, $6.7M calls), which 13F rules report at the value of the underlying shares, not the premium at risk. Stocks alone: $8.9B. Weights use the stock portfolio.

All holdings — Weiss Asset Management LP (Q2 2026)

624 disclosed positions from the Form 13F-HR on SEC EDGAR, with quarter-over-quarter share changes. Largest by value first; the ten above are not repeated.

Company
SMCI$SMCIPUTSuper Micro Computer, Inc.$206.7M+1309%
NVDA$NVDAPUTNVIDIA CORP$200.1M-8%
CEF$CEFSprott Physical Gold & Silver Trust$124.7M+78%
MU$MUPUTMICRON TECHNOLOGY INC$121.2MNew
MSTR$MSTRStrategy Incnote$117.4M+131%
SMCI$SMCISuper Micro Computer, Inc.note$111.1MNew
HOOD$HOODRobinhood Markets, Inc.$109.4M+275%
— ENTREPRENEURSHARES SERIES TR - ERSH PRI PUB ETFetf/fund$107.3MNew
ALB$ALBALBEMARLE CORP$105.9M+133%
MSTR$MSTRStrategy Incnote$102.8M-35%
MSTR$MSTRStrategy Incnote$98.7M+305%
ROIV$ROIVRoivant Sciences Ltd.$90.0MNew
— HEWLETT PACKARD ENTERPRISE C - 7.625 MAND CONVnote$87.4MNew
— STRATEGY INC - NOTE 3/0note$86.4M-20%
SPCX$SPCXSPACE EXPLORATION TECHNOLOGIES CORP$86.0MNew

What changed in Q2 2026

Against the previous quarter's 13F: 414 new, 76 added to, 85 trimmed, 281 sold out. Share-count changes; largest moves by dollar size first.

New positions (414)

  • BA$BABOEING CO$188.3M

    first bought this quarter

  • MU$MUPUTMICRON TECHNOLOGY INC$121.2M

    first bought this quarter

  • ENTREPRENEURSHARES SERIES TR - ERSH PRI PUB ETF$107.3M

    first bought this quarter

  • ROIV$ROIVRoivant Sciences Ltd.$90.0M

    first bought this quarter

  • HEWLETT PACKARD ENTERPRISE C - 7.625 MAND CONV$87.4M

    first bought this quarter

  • SPCX$SPCXSPACE EXPLORATION TECHNOLOGIES CORP$86.0M

    first bought this quarter

+408 more in the Excel export

Added to (76)

  • MU$MUMICRON TECHNOLOGY INC+683%

    now $858.5M · held 4 qtrs, 2 adds in a row

  • SMCI$SMCIPUTSuper Micro Computer, Inc.+1309%

    now $206.7M

  • TSLA$TSLATesla, Inc.+252%

    now $191.6M · held 6 qtrs, 2 adds in a row

  • MSTR$MSTRStrategy Inc+154%

    now $181.9M · held 7 qtrs, 4 adds in a row

  • SUPER MICRO COMPUTER INC - NOTE 2.250% 7/1+68%

    now $245.6M

  • HOOD$HOODRobinhood Markets, Inc.+275%

    now $109.4M · held 2 qtrs, 2 adds in a row

+70 more in the Excel export

Trimmed (85)

  • NTNX$NTNXNutanix, Inc.-100%

    now $208K

  • PSLV$PSLVSprott Physical Silver Trust-66%

    now $52.9M · held 2 qtrs

  • MSTR$MSTRPUTStrategy Inc-79%

    now $17.4M

  • NVDA$NVDANVIDIA CORP-6%

    now $1.1B · held 8 qtrs, 2 trims in a row

  • KMB$KMBKIMBERLY CLARK CORP-99%

    now $222K

  • SPG$SPGSIMON PROPERTY GROUP INC.-98%

    now $571K

+79 more in the Excel export

Sold out (281)

  • HOLX$HOLXHOLOGIC INCwas $93.0M

    held 1 qtr

  • FOLD$FOLDAMICUS THERAPEUTICS, INC.was $56.0M

    held 2 qtrs

  • WB$WBWEIBO Corpwas $50.8M

    held 6 qtrs

  • LMT$LMTLOCKHEED MARTIN CORPwas $37.2M

    held 1 qtr

  • OVV$OVVOvintiv Inc.was $35.4M

    held 1 qtr

  • ETSY$ETSYETSY INCwas $32.5M

+275 more in the Excel export

Firm AUM (Form ADV): $15.6B as of 2025-12-31 · SEC IAPD

Share

Holdings by quarter

Every 13F Weiss Asset Management LP has filed, 23 earlier quarters. Pick one to see what it held then.

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Is it too late to follow Weiss Asset Management?

Q2 2026 13F filed with the SEC on Aug 14, 2026. Prices are closing prices as of Oct 26, 2026.

Average quality of Weiss Asset Management's top 20 holdings: 67/100 (our AI quality score, weighted by position size; 17 of the 20 are scored)

Top 10 since filing

+0.3%

Value-weighted move of the 10 largest stock positions

Turnover

34%

Last quarter; 172% over the last 4

Top 10 weight

39%

Share of the stock portfolio in its 10 largest positions

Held 4+ quarters

49%

Share of portfolio value in positions held a year or more

Highest-quality names it owns(among its 100 largest positions)

The 8 highest-scoring companies in this portfolio are a Pro feature.

How these are measured
  • Moves since the quarter-end and since the filing date use our own daily closing prices, from the close on (or just before) each date to the latest close.
  • Turnover is the lesser of shares bought or sold in a quarter, valued at the quarter-end prices in the 13F, divided by the average of the two quarters' stock portfolio values.
  • Quarters held and add/trim streaks count back only through quarters whose filed holdings add up to the filing's own cover-page total (back to Q1 2024 for this fund). A change counts as an add or a trim when the split-adjusted share count moves by more than 1%.
  • Estimate, not the fund's reported cost. For each quarter in the current holding period in which the fund's share count rose (split-adjusted), we take that quarter's average daily close and weight it by the shares added; sales do not change an average cost. Quarters where the stock's price history and the 13F's own implied price disagree by more than 2x are left out.
  • Put and call option rows report the value of the underlying shares, not a position the fund paid for, so they are left out of all of the above.

Portfolio Overview

Weiss Asset Management LP disclosed 624 positions worth $9.5B in its Form 13F-HR for Q2 2026 — $8.9B in common stock plus $617.1M of put/call option positions (reported at underlying notional value, not premium at risk), led by $NVDA (NVIDIA CORP) at 11.8% of the equity portfolio, followed by $MU and $SMCI. During the quarter the fund opened 414 new positions and exited 281 — including a new stake in $BA and a full exit from $HOLX. The portfolio is most concentrated in Technology (40.1% of disclosed assets). All figures are sourced directly from Weiss Asset Management LP’s Form 13F-HR filing with the SEC under CIK 1357550.

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AI-Powered Hedge Fund Analysis: Weiss Asset Management LP

13F Pro is an AI hedge fund tracker and stock research platform. For Weiss Asset Management LP (SEC CIK: 1357550), the platform ingests every quarterly Form 13F filing and applies AI-powered analysis on top — 10 specialized AI analysts (value, growth, momentum, macro, activist, and more) debate the fund's top positions and publish AI-generated analysis with cited SEC sources.

Every holding in Weiss Asset Management LP's portfolio is scored on an AI quality ranking built from its SEC filings (ROIC, FCF margin, revenue growth, institutional flow, earnings quality, shareholder dilution, and more). Track accumulation and distribution quarter over quarter, identify conviction positions, and see AI stock analysis for each position — alongside 8,700+ other institutional filers and 2,800+ AI-ranked companies.