ZWEIG-DIMENNA ASSOCIATES LLC
Q2 2026 Form 13-F
NEW YORK, NEW YORK
CIK 0001533950
· CRD 161385
· SEC-registered investment adviser
Consolidated report · includes
1 manager
since Q2 2013
$1.1B Reported Value Total
ZWEIG-DIMENNA ASSOCIATES LLC reports 6 total accounts under management (AUM). There are 6 discretionary accounts valued at $1,633,517,000, and 0 non-discretionary accounts.
Source: Form ADV filed * Note that certain holdings are exempt from Form 13-F reporting, so the AUM totals may be greater than the Form 13-F total.
Private funds (Form ADV)
11 funds
· $1.8B gross asset value
Hedge Fund: $1.8B
Source: Form ADV filed 2026-04-29
Reported value
$1.1B
Quarter over quarter
+48.2%
Holdings
70
Top-10 concentration
39.3%
Filing Structure
Reports holdings for
- Zweig-DiMenna International Managers, Inc. (not a 13F filer in our records) · since Q2 2013 · declared by one filing
- Zweig-DiMenna Associates, Inc (not a 13F filer in our records) · Q2 2013 – Q4 2022 · declared by one filing
Key People
Form ADV owners & control persons
Joseph Anthony Dimenna
MANAGING DIRECTOR
Kevin P Cannon
CEO
Thomas Frances Keyes
EXECUTIVE VICE PRESIDENT
Filing Navigation
Coverage begins with the second quarter of 2013. Earlier quarters are not shown while their accuracy is being verified.
13F Metrics
Loading 13F Metrics
Q2 2026 13F record
Q2 2026 13F filing summary
| Period of report | June 30, 2026 |
|---|---|
| Filed | August 13, 2026 |
| Form | 13F-HR |
| Reported value | $1.1B |
| Positions | 70 |
| Change in reported value | +52.6% |
| New positions | 21 |
| Exited positions | 10 |
| Position turnover | 38.8% |
| Top-10 concentration | 39.3% |
13F filings by quarter
| Quarter | Positions | Value |
|---|---|---|
|
Q2 2026 13F
Filed Aug 13, 2026
|
70 | $1.1B |
|
Q1 2026 13F
Filed May 5, 2026
|
59 | $722.2M |
|
Q4 2025 13F
Filed Feb 10, 2026
|
97 | $1.6B |
|
Q3 2025 13F
Filed Nov 7, 2025
|
94 | $1.4B |
|
Q2 2025 13F
Filed Aug 5, 2025
|
83 | $1.1B |
|
Q1 2025 13F
Filed May 7, 2025
|
62 | $631.4M |
|
Q4 2024 13F
Filed Jan 21, 2025
|
88 | $1.3B |
|
Q3 2024 13F
Filed Oct 23, 2024
|
85 | $990.0M |
|
Q2 2024 13F
Filed Jul 24, 2024
|
75 | $888.0M |
|
Q1 2024 13F
Filed Apr 29, 2024
|
121 | $1.1B |
|
Q4 2023 13F
Filed Jan 25, 2024
|
106 | $886.6M |
|
Q3 2023 13F
Filed Oct 25, 2023
|
108 | $844.0M |
|
Q2 2023 13F
Filed Jul 26, 2023
|
112 | $800.3M |
|
Q1 2023 13F
Filed Apr 28, 2023
|
104 | $738.9M |
|
Q4 2022 13F
Filed Feb 7, 2023
|
107 | $686.5M |
|
Q3 2022 13F
Filed Oct 28, 2022
|
86 | $459.3M |
|
Q2 2022 13F
Filed Jul 28, 2022
|
85 | $526.4M |
|
Q1 2022 13F
Filed Apr 25, 2022
|
91 | $750.3M |
|
Q4 2021 13F
Filed Jan 27, 2022
|
117 | $1.2B |
|
Q3 2021 13F
Filed Oct 25, 2021
|
163 | $1.4B |
33 earlier quarters on file — choose one from the quarter menu above.
Top 20 holdings · Q2 2026
| # | Holding | Reported value | % of portfolio |
|---|---|---|---|
| 1 | SNDK SANDISK CORP | $74.1M | 6.73% |
| 2 | AMZN AMAZON COM INC | $54.0M | 4.9% |
| 3 | MU MICRON TECHNOLOGY INC | $47.8M | 4.33% |
| 4 | WGS GENEDX HOLDINGS CORP | $39.3M | 3.56% |
| 5 | AMAT APPLIED MATERIALS | $39.1M | 3.55% |
| 6 | LRCX LAM RESEARCH | $38.6M | 3.5% |
| 7 | AMD ADVANCED MICRO DEVICES INC | $36.7M | 3.33% |
| 8 | COHR COHERENT CORP | $36.4M | 3.31% |
| 9 | APP APPLOVIN CORP | $35.4M | 3.21% |
| 10 | LITE LUMENTUM HLDGS INC | $31.4M | 2.85% |
| 11 | TSM TAIWAN SEMICONDUCTOR MFG LTD | $30.9M | 2.8% |
| 12 | NVDA NVIDIA CORPORATION | $29.3M | 2.66% |
| 13 | V VISA INC | $26.5M | 2.4% |
| 14 | AVGO BROADCOM INC | $26.4M | 2.39% |
| 15 | RVMD REVOLUTION MEDICINES INC | $22.5M | 2.04% |
| 16 | NXPI NXP SEMICONDUCTORS NV | $22.3M | 2.02% |
| 17 | NTRA NATERA INC | $22.3M | 2.02% |
| 18 | PL PLANET LABS PBC | $21.9M | 1.98% |
| 19 | VRT VERTIV HOLDINGS CO | $21.3M | 1.93% |
| 20 | TER TERADYNE INC | $18.4M | 1.67% |
Values as reported on the Q2 2026 Form 13F. Every position is in the holdings table below.