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Zweig-DiMenna Associates LLC: 13F holdings, Q2 2026

Hedge fund · SEC EDGAR filings (CIK 1533950) · Explore on the interactive board

Zweig-DiMenna Associates LLC disclosed 70 US equity positions worth $1.1bn in its Q2 2026 13F filing (holdings as of June 30, 2026, filed August 13, 2026). Its largest position is SNDK at 6.7% of the reported book, followed by AMZN, MU. The top ten holdings are 39.3% of the book, and the portfolio behaves like about 39 equal-weight positions. Versus the prior filing it opened 21 new positions, added to 12, reduced 25 and exited 10. Note: this manager's most recent filing is 3934 quarters behind the newest quarter on file, so these figures are history rather than current positioning.

This manager's most recent filing is 3934 quarter(s) behind the newest quarter on file. Treat these figures as history, not current positioning.
$1.1bnreported US equity book
70positions
6.7%largest position
39.3%top 10 weight
38.97effective positions (1/HHI)
2quarters on file since Q1 2026

What does Zweig-DiMenna Associates LLC own? Top holdings as of June 30, 2026

Change is measured in shares against the previous filing (Q1 2026), so price moves do not read as decisions. This quarter: 21 new, 12 added, 25 reduced, 10 exited.

#StockSectorWeightValueSharesΔ sharesAction
1 SNDK SANDISK CORP Technology 6.7%$74.1m32,609 31% added
2 AMZN AMAZON COM INC Consumer Cyclical 4.9%$54.0m226,579 -37% reduced
3 MU MICRON TECHNOLOGY INC Technology 4.3%$47.8m41,377 -9% reduced
4 WGS GENEDX HOLDINGS CORP Healthcare 3.6%$39.3m571,950 -17% reduced
5 AMAT APPLIED MATERIALS Technology 3.6%$39.1m54,128 -17% reduced
6 LRCX LAM RESEARCH Technology 3.5%$38.6m88,966 -8% reduced
7 AMD ADVANCED MICRO DEVICES INC Technology 3.3%$36.7m63,226 82% added
8 COHR COHERENT CORP Technology 3.3%$36.4m92,371 -21% reduced
9 APP APPLOVIN CORP Communication Services 3.2%$35.4m68,675 -15% reduced
10 LITE LUMENTUM HLDGS INC Technology 2.8%$31.4m36,553 -10% reduced
11 TSM TAIWAN SEMICONDUCTOR MFG LTD Technology 2.8%$30.9m64,728 -16% reduced
12 NVDA NVIDIA CORPORATION Technology 2.7%$29.3m146,615 12% added
13 V VISA INC Financial Services 2.4%$26.5m77,150 16% added
14 AVGO BROADCOM INC Technology 2.4%$26.4m69,814 0% held
15 RVMD REVOLUTION MEDICINES INC Healthcare 2.0%$22.5m120,200 1350% added
16 NXPI NXP SEMICONDUCTORS NV Technology 2.0%$22.3m79,301 96% added
17 NTRA NATERA INC Healthcare 2.0%$22.3m81,982 8% added
18 PL PLANET LABS PBC Industrials 2.0%$21.9m660,200 new
19 VRT VERTIV HOLDINGS CO Industrials 1.9%$21.3m63,502 -20% reduced
20 TER TERADYNE INC Technology 1.7%$18.4m38,034 0% held
21 BE BLOOM ENERGY CORP Industrials 1.6%$17.4m57,525 -8% reduced
22 STX SEAGATE TECHNOLOGY HLDNGS PL Technology 1.6%$17.2m17,844 0% held
23 DELL DELL TECHNOLOGIES Technology 1.5%$16.2m37,500 new
24 WULF TERAWULF INC Financial Services 1.4%$15.8m637,982 -4% reduced
25 CRWD CROWDSTRIKE HOLDINGS INC Technology 1.4%$15.7m20,511 -56% reduced
26 COF CAPITAL ONE FINANCIAL CORP Financial Services 1.4%$15.0m75,000 new
27 META META PLATFORMS INC Communication Services 1.4%$14.9m26,520 -27% reduced
28 GOOGL ALPHABET INC Communication Services 1.3%$14.8m41,450 -20% reduced
29 ADI ANALOG DEVICES Technology 1.3%$14.4m36,250 new
30 MRVL MARVELL TECHNOLOGY INC Technology 1.3%$14.4m48,233 new
31 PWR QUANTA SVCS INC Industrials 1.3%$14.3m19,850 28% added
32 SEI SOLARIS ENERGY INFRASTRUCTURE Energy 1.3%$13.9m172,650 263% added
33 INTC INTEL CORP Technology 1.2%$13.7m98,400 new
34 DAL DELTA AIR LINES INC Industrials 1.1%$12.5m133,850 -37% reduced
35 SPOT SPOTIFY TECHNOLOGY S A Communication Services 1.1%$12.4m27,021 -1% reduced
36 ONTO ONTO INNOVATION INC Technology 1.1%$12.3m32,600 new
37 MCHP MICROCHIP TECHNOLOGY Technology 1.0%$11.5m125,644 -15% reduced
38 CDNA CAREDX INC Healthcare 1.0%$11.1m388,812 -0% held
39 MSFT MICROSOFT CORP Technology 1.0%$10.9m29,200 5% added
40 AAOI APPLIED OPTOELR Technology 1.0%$10.6m71,835 -10% reduced
41 ANET ARISTA NETWORKS INC Technology 1.0%$10.6m62,304 -21% reduced
42 PRCH PORCH GROUP INC Financial Services 0.9%$10.4m693,738 -17% reduced
43 QXO QXO INC Industrials 0.9%$10.3m598,900 3% added
44 XMTR XOMETRY INC Industrials 0.9%$9.9m102,650 0% held
45 SPNT SIRIUSPOINT LTD Financial Services 0.9%$9.5m397,350 0% held
46 TDUP THREDUP INC Consumer Cyclical 0.7%$7.9m1,154,000 -21% reduced
47 EMBJ EMBRAER SA Industrials 0.7%$7.8m122,161 0% held
48 FN FABRINET Technology 0.7%$7.3m12,900 0% held
49 NFLX NETFLIX INC Communication Services 0.7%$7.2m101,000 0% held
50 KTOS KRATOS DEFENSE & SECURITY SOLTNS INC Industrials 0.6%$7.1m143,026 -8% reduced

What did Zweig-DiMenna Associates LLC sell? Positions exited since the previous filing

StockPrior weightPrior value
SNPS SYNOPSYS INC22.3%$5.7m
LVS LAS VEGAS SANDS20.5%$5.3m
VST VISTRA CORP17.0%$4.4m
ALNT ALLIENT INC10.8%$2.8m
KVYO KLAVIYO INC9.8%$2.5m
OIH VANECK ETF TRUST9.0%$2.3m
ROOT ROOT INC/OH4.6%$1.2m
XHB STATE STREET SPDR S&P HOMEBUIL3.9%$1.0m
BTBT BIT DIGITAL INC1.3%$331.4k
BTG B2GOLD CORP0.8%$207.5k

Sector mix

SectorWeight
Technology54.2%
Industrials11.7%
Healthcare9.1%
Financial Services7.9%
Communication Services7.7%
Consumer Cyclical5.6%

Sectors cover positions whose ticker resolved to a sector; the remainder is unclassified, not cash.

Filing history

QuarterPositionsEquity value
Q2 202670$1.1bn
Q1 202659$713.0m

How concentrated is Zweig-DiMenna Associates LLC's portfolio?

Across every quarter Zweig-DiMenna Associates LLC has filed, its median largest position is 8.6% of the book and its median top-ten weight is 42.2%, which WhaleCreep classifies as concentrated (the gate is a median largest position of 5%). Of 10.0 completed holding spells, the median lasted 1.0 quarters; 70.0 positions are still open and their final length is unknown.