Q2 2026 13F · SEC CIK 1533950

Zweig-DiMenna Associates LLC

Hedge fundFiled 2026-08-13 for Q2 2026. Open the filing ↗ · All SEC filings ↗

Reported 13F value: $1.1B
Reported positions: 70
Top holdings a year, 3 yrs: +38.3%
Assets under management: $1.6B

Zweig-DiMenna Associates LLC is a hedge fund that reported 70 positions worth $1.1B in its Q2 2026 13F, filed 2026-08-13. Its largest holdings were Sandisk Corp (SNDK, 6.7%), Amazon Com Inc (AMZN, 4.9%), Micron Technology Inc (MU, 4.3%). A portfolio copying its top holdings returned 38.3% a year over the last 3 years, against 20.4% for the S&P 500.

Zweig-DiMenna Associates LLC holdings largest 50 of 70 positions.

Weights are shares of the filer's total reported 13F value, compared with Q1 2026. Share changes may reflect splits; weight changes also reflect price moves. A 13F shows long US-listed positions only, up to 135 days after the fact.

Zweig-DiMenna Associates LLC 13F holdings
Stock	% of 13F value	Q1 2026	Shares	Share change	Reported value
SNDKSandisk Corp	6.7%	2.2%	32,609	+31.2%	$74.1M
AMZNAmazon Com Inc	4.9%	10.5%	226,579	-37.0%	$54.0M
MUMicron Technology Inc	4.3%	2.2%	41,377	-9.1%	$47.8M
WGSGenedx Holdings Corp	3.6%	6.2%	571,950	-17.0%	$39.3M
AMATApplied Matls Inc	3.5%	3.1%	54,128	-17.1%	$39.1M
LRCXLam Research Corp	3.5%	2.9%	88,966	-7.8%	$38.6M
AMDAdvanced Micro Devices Inc	3.3%	1.0%	63,226	+81.9%	$36.7M
COHRCoherent Corp	3.3%	3.9%	92,371	-20.9%	$36.4M
APPApplovin Corp	3.2%	4.5%	68,675	-15.2%	$35.4M
LITELumentum Hldgs Inc	2.8%	4.0%	36,553	-10.3%	$31.4M
TSMTaiwan Semiconductor Manufac	2.8%	3.7%	64,728	-16.4%	$30.9M
NVDANvidia Corporation	2.7%	3.2%	146,615	+12.2%	$29.3M
VVisa Inc	2.4%	2.8%	77,150	+15.7%	$26.5M
AVGOBroadcom Inc	2.4%	3.0%	69,814	+0.3%	$26.4M
RVMDRevolution Medicines Inc	2.0%	—	120,200	—	$22.5M
NXPINxp Semiconductors N V	2.0%	1.1%	79,301	+96.2%	$22.3M
NTRANatera Inc	2.0%	2.1%	81,982	+7.5%	$22.3M
PLPlanet Labs Pbc	2.0%	—	660,200	—	$21.9M
VRTVertiv Holdings Co	1.9%	2.8%	63,502	-20.2%	$21.3M
TERTeradyne Inc	1.7%	1.6%	38,034	+0.0%	$18.4M
BEBloom Energy Corp	1.6%	1.2%	57,525	-8.0%	$17.4M
STXSeagate Technology Hldngs Pl	1.6%	1.0%	17,844	+0.0%	$17.2M
DELLDell Technologies Inc	1.5%	—	37,500	—	$16.2M
WULFTerawulf Inc	1.4%	1.4%	637,982	-4.5%	$15.8M
CRWDCrowdstrike Hldgs Inc	1.4%	2.5%	20,511	-55.9%	$15.7M
COFCapital One Finl Corp	1.4%	—	75,000	—	$15.0M
METAMeta Platforms Inc	1.4%	2.9%	26,520	-27.0%	$14.9M
GOOGLAlphabet Inc	1.3%	2.1%	41,450	-19.8%	$14.8M
ADIAnalog Devices Inc	1.3%	—	36,250	—	$14.4M
MRVLMarvell Technology Inc	1.3%	—	48,233	—	$14.4M
PWRQuanta Svcs Inc	1.3%	1.2%	19,850	+27.7%	$14.3M
SOISolaris Energy Infrastructure Inc	1.3%	0.4%	172,650	+263.5%	$13.9M
INTCIntel Corp	1.2%	—	98,400	—	$13.7M
DALDelta Air Lines Inc	1.1%	2.0%	133,850	-36.9%	$12.5M
SPOTSpotify Technology SA	1.1%	1.9%	27,021	-1.4%	$12.4M
ONTOOnto Innovation Inc	1.1%	—	32,600	—	$12.3M
MCHPMicrochip Technology Inc.	1.0%	1.3%	125,644	-14.5%	$11.5M
CDNACareDx, Inc.	1.0%	0.9%	388,812	-0.4%	$11.1M
MSFTMicrosoft Corp	1.0%	1.4%	29,200	+4.8%	$10.9M
AAOIApplied Optoelectronics Inc	1.0%	0.9%	71,835	-10.3%	$10.6M
ANETArista Networks Inc	1.0%	1.4%	62,304	-20.6%	$10.6M
PRCHPorch Group Inc	0.9%	0.8%	693,738	-17.4%	$10.4M
QXOQxo Inc	0.9%	1.6%	598,900	+2.8%	$10.3M
XMTRXometry, Inc.	0.9%	0.6%	102,650	+0.0%	$9.9M
SPNTSiriuspoint Ltd	0.9%	1.2%	397,350	+0.0%	$9.5M
TDUPThredup Inc	0.7%	0.7%	1,154,000	-20.7%	$7.9M
EMBJEmbraer SA ADR	0.7%	1.0%	122,161	+0.0%	$7.8M
FNFabrinet	0.7%	0.9%	12,900	+0.0%	$7.3M
NFLXNetflix Inc.	0.7%	1.4%	101,000	+0.0%	$7.2M
KTOSKratos Defense & Security Solutions Inc	0.6%	1.5%	143,026	-7.7%	$7.1M

What Zweig-DiMenna Associates LLC bought and sold in Q2 2026, against Q1 2026.

New positions

Q1 2026's filing was too long to tell new positions apart.

Added to

SOI Solaris Energy Infrastructure Inc+263.5% shares
NXPI Nxp Semiconductors N V+96.2% shares
AMD Advanced Micro Devices Inc+81.9% shares
SNDK Sandisk Corp+31.2% shares
PWR Quanta Svcs Inc+27.7% shares
V Visa Inc+15.7% shares
NVDA Nvidia Corporation+12.2% shares
NTRA Natera Inc+7.5% shares

Reduced

Left the top 50

Share counts compared with the Q1 2026 13F; a split also changes share counts. The latest filing lists more than 50 positions, so a position that left the top 50 may still be held.

How the holdings did against the S&P 500.

1 year: +50.9% /yr; S&P 500 +20.1%
3 years: +38.3% /yr; S&P 500 +20.4%
5 years: +13.5% /yr; S&P 500 +11.6%

A portfolio of the filer's 20 largest 13F positions, weighted by value, bought the trading day after each 13F was filed and held until the next one was: what copying this filer could have earned. 13Fs show long US-listed positions only, so this is an estimate of the stock picks, not the fund's reported returns.

Reported 13F value by quarter.

13F value by quarter
Quarter	13F value	Positions
Q2 2026	$1.1B	70
Q1 2026	$713.0M	59
Q4 2025	$1.4B	97
Q3 2025	$1.3B	94
Q2 2025	$974.6M	83
Q1 2025	$624.2M	62
Q4 2024	$1.2B	88
Q3 2024	$985.5M	85
Q2 2024	$880.6M	75
Q1 2024	$1.1B	121
Q4 2023	$868.2M	106
Q3 2023	$831.5M	108

Questions about Zweig-DiMenna Associates LLC's portfolio

What stocks does Zweig-DiMenna Associates LLC own?

Zweig-DiMenna Associates LLC's latest 13F, for Q2 2026 and filed Aug 13, 2026, lists 70 positions worth $1.1B. The largest are Sandisk Corp (SNDK) at 6.7%, Amazon Com Inc (AMZN) at 4.9%, Micron Technology Inc (MU) at 4.3%, Genedx Holdings Corp (WGS) at 3.6% and Applied Matls Inc (AMAT) at 3.5%.

What did Zweig-DiMenna Associates LLC buy last quarter?

In Q2 2026, Zweig-DiMenna Associates LLC added Solaris Energy Infrastructure Inc (SOI) (+263.5% shares), Nxp Semiconductors N V (NXPI) (+96.2% shares) and Advanced Micro Devices Inc (AMD) (+81.9% shares), compared with its Q1 2026 filing.

What did Zweig-DiMenna Associates LLC sell last quarter?

In Q2 2026, Zweig-DiMenna Associates LLC cut from its top 50 Hut 8 Corp (HUT), cut from its top 50 Snowflake Inc (SNOW), cut from its top 50 Synopsys Inc (SNPS), cut from its top 50 Las Vegas Sands (LVS), cut from its top 50 Luxexperience BV (MYTE), Crowdstrike Hldgs Inc (CRWD) (-55.9% shares), Amazon Com Inc (AMZN) (-37.0% shares) and Delta Air Lines Inc (DAL) (-36.9% shares), compared with its Q1 2026 filing.

How has Zweig-DiMenna Associates LLC's portfolio performed?

A portfolio copying Zweig-DiMenna Associates LLC's 20 largest 13F holdings each quarter, from the day each filing was public, returned +38.3% a year over the last 3 years, against +20.4% for the S&P 500. Over 1 year: +50.9% against +20.1%. Over 5 years: +13.5% a year against +11.6%.

When is Zweig-DiMenna Associates LLC's next 13F filing due?

13F filings are due 45 days after each quarter ends. Zweig-DiMenna Associates LLC's filing for the quarter ending Sep 30, 2026 is due by Nov 14, 2026; this page updates the day after it is published.

How much money does Zweig-DiMenna Associates LLC manage?

Zweig-DiMenna Associates LLC reported $1.6B of regulatory assets under management on its latest SEC Form ADV. Its 13F, which covers only US-listed stocks and options, totals $1.1B.