Zweig-DiMenna Associates LLC — 13F Holdings & Portfolio
CIK 1533950 · latest 13F-HR filed 2026-05-05
Zweig-DiMenna Associates LLC manages $722.2M in 13F-reported U.S. long-equity assets across 61 reported positions as of its 2026-03-31 13F-HR filing. Its largest disclosed positions are AMZN (10.37%), WGS (6.13%), APP (4.46%). Quarter over quarter (versus its 2025-12-31 filing) the fund opened 12 new positions, exited 50, added to 10, and trimmed 33.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
$722.2M
Long-equity book
61
Distinct positions
2026-03-31
Filed 2026-05-05
+12 / −50 / ↑10 / ↓33
vs 2025-12-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- COHERENT CORP$13.6M +95.9%
- LAM RESEARCH$9.4M +84.2%
- MICRON TECHNOLOGY INC$7.8M +104.0%
- ARISTA NETWORKS INC$6.7M +226.9%
- APPLIED OPTOELR$4.0M +147.4%
Top Trims
- BROADCOM INC-$52.0M -70.7%
- APPLOVIN CORP-$48.6M -60.1%
- GENEDX HOLDINGS CORP-$33.5M -43.1%
- QUANTA SVCS INC-$33.2M -79.6%
- TAIWAN SEMICONDUCTOR MFG LTD-$31.9M -54.9%
New Positions
- APPLIED MATERIALS$22.3M
- CROWDSTRIKE HOLDINGS INC$18.2M
- QXO INC$11.3M
- BLOOM ENERGY CORP$8.5M
- FABRINET$6.7M
Exited Positions
- CELESTICA INC$29.7M
- CYBERARK SOFTWARE LTD$29.2M
- MARVELL TECHNOLOGY INC$20.9M
- ALIBABA GROUP HOLDING LTD$20.1M
- WESTERN DIGITAL$14.3M
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | AMAZON COM INC | AMZN | 023135106 | $74.9M | 10.37% | 359,759 | SH |
| 2 | GENEDX HOLDINGS CORP | WGS | 81663L200 | $44.3M | 6.13% | 689,290 | SH |
| 3 | APPLOVIN CORP | APP | 03831W108 | $32.2M | 4.46% | 80,950 | SH |
| 4 | LUMENTUM HLDGS INC | LITE | 55024U109 | $28.6M | 3.97% | 40,750 | SH |
| 5 | COHERENT CORP | COHR | 19247G107 | $27.8M | 3.85% | 116,750 | SH |
| 6 | TAIWAN SEMICONDUCTOR MFG LTD | TSM | 874039100 | $26.2M | 3.62% | 77,425 | SH |
| 7 | NVIDIA CORPORATION | NVDA | 67066G104 | $22.8M | 3.15% | 130,640 | SH |
| 8 | APPLIED MATERIALS | AMAT | 038222105 | $22.3M | 3.09% | 65,300 | SH |
| 9 | BROADCOM INC | AVGO | 11135F101 | $21.5M | 2.98% | 69,600 | SH |
| 10 | META PLATFORMS INC | META | 30303M102 | $20.8M | 2.88% | 36,320 | SH |
| 11 | LAM RESEARCH | LRCX | 512807306 | $20.6M | 2.85% | 96,500 | SH |
| 12 | VISA INC | V | 92826C839 | $20.2M | 2.79% | 66,700 | SH |
| 13 | VERTIV HOLDINGS CO | VRT | 92537N108 | $19.9M | 2.76% | 79,583 | SH |
| 14 | CROWDSTRIKE HOLDINGS INC | CRWD | 22788C105 | $18.2M | 2.51% | 46,500 | SH |
| 15 | SANDISK CORP | SNDK | 80004C200 | $15.8M | 2.19% | 24,850 | SH |
| 16 | MICRON TECHNOLOGY INC | MU | 595112103 | $15.4M | 2.13% | 45,500 | SH |
| 17 | NATERA INC | NTRA | 632307104 | $15.2M | 2.11% | 76,250 | SH |
| 18 | ALPHABET INC | GOOGL | 02079K305 | $14.9M | 2.06% | 51,675 | SH |
| 19 | DELTA AIR LINES INC DEL | DAL | 247361702 | $14.1M | 1.95% | 212,060 | SH |
| 20 | SPOTIFY TECHNOLOGY S A | SPOT | L8681T102 | $13.3M | 1.84% | 27,405 | SH |
| 21 | QXO INC | QXO | 82846H405 | $11.3M | 1.57% | 582,500 | SH |
| 22 | TERADYNE INC | TER | 880770102 | $11.3M | 1.56% | 38,034 | SH |
| 23 | KRATOS DEFENSE & SECURITY SOLTNS INC | KTOS | 50077B207 | $10.9M | 1.51% | 155,026 | SH |
| 24 | MICROSOFT CORP | MSFT | 594918104 | $10.3M | 1.43% | 27,850 | SH |
| 25 | NETFLIX INC | NFLX | 64110L106 | $9.7M | 1.34% | 101,000 | SH |
| 26 | ARISTA NETWORKS INC | ANET | 040413205 | $9.6M | 1.33% | 78,500 | SH |
| 27 | TERAWULF INC | WULF | 88080T104 | $9.6M | 1.33% | 667,830 | SH |
| 28 | MICROCHIP TECHNOLOGY | MCHP | 595017104 | $9.5M | 1.32% | 147,000 | SH |
| 29 | SIRIUSPOINT LTD | SPNT | G8192H106 | $8.6M | 1.19% | 397,350 | SH |
| 30 | QUANTA SVCS INC | PWR | 74762E102 | $8.5M | 1.18% | 15,550 | SH |
| 31 | BLOOM ENERGY CORP | BE | 093712107 | $8.5M | 1.17% | 62,500 | SH |
| 32 | NXP SEMICONDUCTORS NV | NXPI | N6596X109 | $8.0M | 1.10% | 40,412 | SH |
| 33 | EMBRAER SA | EMBJ | 29082A107 | $7.2M | 1.00% | 122,161 | SH |
| 34 | ADVANCED MICRO DEVICES INC | AMD | 007903107 | $7.1M | 0.98% | 34,759 | SH |
| 35 | SEAGATE TECHNOLOGY HLDNGS PL | STX | G7997R103 | $7.0M | 0.97% | 17,844 | SH |
| 36 | HUT 8 MINING CORP | HUT | 44812J104 | $6.8M | 0.95% | 145,647 | SH |
| 37 | CAREDX INC | CDNA | 14167L103 | $6.8M | 0.94% | 390,255 | SH |
| 38 | APPLIED OPTOELR | AAOI | 03823U102 | $6.8M | 0.94% | 80,050 | SH |
| 39 | FABRINET | FN | G3323L100 | $6.7M | 0.93% | 12,900 | SH |
| 40 | PORCH GROUP INC | PRCH | 733245104 | $6.0M | 0.83% | 839,500 | SH |
| 41 | SNOWFLAKE INC | SNOW | 833445109 | $6.0M | 0.83% | 39,600 | SH |
| 42 | APPLOVIN CORP Call | — | 99DN9QZ79 | $6.0M | 0.83% | 150 | SH |
| 43 | SYNOPSYS INC | SNPS | 871607107 | $5.7M | 0.79% | 14,479 | SH |
| 44 | LAS VEGAS SANDS | LVS | 517834107 | $5.3M | 0.73% | 97,500 | SH |
| 45 | THREDUP INC | TDUP | 88556E102 | $4.8M | 0.66% | 1,454,500 | SH |
| 46 | LUXEXPERIENCE BV | LUXE | 55406W103 | $4.7M | 0.65% | 590,000 | SH |
| 47 | VISTRA CORP | VST | 92840M102 | $4.4M | 0.60% | 29,000 | SH |
| 48 | XOMETRY INC | XMTR | 98423F109 | $4.2M | 0.58% | 102,650 | SH |
| 49 | GENEDX HOLDINGS CORP Call | WGSWW | 99DP6M5W4 | $3.2M | 0.44% | 500 | SH |
| 50 | ALLIENT INC | ALNT | 019330109 | $2.8M | 0.38% | 47,000 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-03-31 | 2026-05-05 | $722.2M | 61 | 0001104659-26-055325 |
| 2025-12-31 | 2026-02-10 | $1.61B | 106 | 0001104659-26-012400 |