Zweig-DiMenna Associates LLC
In its 13F for Q1 2026 (holdings as of March 31, 2026, filed May 5, 2026), Zweig-DiMenna Associates LLC reported 59 stock positions worth $713.0 million. Its top holding was Amazon.com (AMZN) at 10.5% of the portfolio, followed by Genedx (WGS, 6.2%) and AppLovin Class A (APP, 4.5%). Compared with Q4 2025, it opened 12 new positions, sold out of 50, added to 12 and reduced 33. The biggest buy was a new position in Applied Materials (AMAT) and the biggest sale Broadcom (AVGO, shares −67%).
- Most Recent 13F
- Q2 2026
- Location
- NEW YORK, NY
- CIK
- 0001533950
- Portfolio Value
- $713.0M (Q1 2026)
- SEC Filing
- 0001104659-26-055325 ↗ filed May 5, 2026
Holdings Value
Holdings 59 stocks · $713.0M
| AMZN Amazon.com Inc. | 10.51% | 359,759 | $74.9M | Reduce -2.2% |
| WGS Genedx Holdings Corp. | 6.21% | 689,290 | $44.3M | Add +15.3% |
| APP AppLovin Corp. Class A | 4.52% | 80,950 | $32.2M | Reduce -32.5% |
| LITE Lumentum Holdings Inc. | 4.02% | 40,750 | $28.6M | Reduce -69.0% |
| COHR Coherent Corp. | 3.90% | 116,750 | $27.8M | Add +51.8% |
| TSM Taiwan Semiconductor-SP ADR | 3.67% | 77,425 | $26.2M | Reduce -59.5% |
| NVDA Nvidia Corp. | 3.20% | 130,640 | $22.8M | Reduce -25.9% |
| AMAT Applied Materials Inc. | 3.13% | 65,300 | $22.3M | New |
| AVGO Broadcom Inc. | 3.02% | 69,600 | $21.5M | Reduce -67.2% |
| META Meta Platforms Inc. Class A | 2.91% | 36,320 | $20.8M | Add +19.9% |
| LRCX Lam Research Corp. | 2.89% | 96,500 | $20.6M | Add +47.5% |
| V Visa Inc. Class A | 2.83% | 66,700 | $20.2M | Add +20.4% |
| VRT Vertiv Holdings Co. Class A | 2.80% | 79,583 | $19.9M | Reduce -21.7% |
| CRWD CrowdStrike Holdings Inc. Class A | 2.55% | 46,500 | $18.2M | New |
| SNDK Sandisk Corp. | 2.21% | 24,850 | $15.8M | Reduce -62.6% |
| MU Micron Technology Inc. | 2.16% | 45,500 | $15.4M | Add +72.3% |
| NTRA Natera Inc. | 2.14% | 76,250 | $15.2M | Reduce -43.4% |
| GOOGL Alphabet Inc. Class A | 2.08% | 51,675 | $14.9M | Reduce -1.1% |
| DAL Delta Air Lines Inc. | 1.98% | 212,060 | $14.1M | Reduce -22.1% |
| SPOT Spotify Technology SA | 1.86% | 27,405 | $13.3M | Reduce -2.9% |
| QXO Qxo Inc. | 1.59% | 582,500 | $11.3M | New |
| TER Teradyne Inc. | 1.58% | 38,034 | $11.3M | Reduce -52.8% |
| KTOS Kratos Defense & Security | 1.53% | 155,026 | $10.9M | Reduce -25.8% |
| MSFT Microsoft Corp. | 1.45% | 27,850 | $10.3M | Reduce -41.3% |
| NFLX Netflix Inc. | 1.36% | 101,000 | $9.7M | Reduce -41.0% |
| ANET Arista Networks Inc. | 1.35% | 78,500 | $9.6M | Add +248.9% |
| WULF Terawulf Inc. | 1.35% | 667,830 | $9.6M | Reduce -64.3% |
| MCHP Microchip Technology Inc. | 1.33% | 147,000 | $9.5M | Add +21.0% |
| SPNT Siriuspoint Ltd. | 1.20% | 397,350 | $8.6M | Reduce -19.2% |
| PWR Quanta Services Inc. | 1.20% | 15,550 | $8.5M | Reduce -84.3% |
| BE Bloom Energy Corp. Class A | 1.19% | 62,500 | $8.5M | New |
| NXPI NXP Semiconductors NV | 1.12% | 40,412 | $8.0M | Reduce -35.3% |
| EMBJ Embraer SA-Spon ADR | 1.02% | 122,161 | $7.2M | Reduce -37.4% |
| AMD Advanced Micro Devices | 0.99% | 34,759 | $7.1M | Reduce -53.4% |
| STX Seagate Technology Holdings | 0.98% | 17,844 | $7.0M | Reduce -76.2% |
| HUT Hut 8 Corp. | 0.96% | 145,647 | $6.8M | Reduce -78.3% |
| CDNA Caredx Inc. | 0.95% | 390,255 | $6.8M | Reduce -42.5% |
| AAOI Applied Optoelectronics Inc. | 0.95% | 80,050 | $6.8M | Add +2.0% |
| FN Fabrinet | 0.94% | 12,900 | $6.7M | New |
| PRCH Porch Group Inc. | 0.84% | 839,500 | $6.0M | Reduce -36.8% |
| SNOW Snowflake Inc. | 0.84% | 39,600 | $6.0M | New |
| SNPS Synopsys Inc. | 0.81% | 14,479 | $5.7M | Reduce -37.0% |
| LVS Las Vegas Sands Corp. | 0.74% | 97,500 | $5.3M | Reduce -49.4% |
| TDUP Thredup Inc. Class A | 0.67% | 1,454,500 | $4.8M | Add +170.1% |
| LUXE Luxexperience BV | 0.66% | 590,000 | $4.7M | Add +15.2% |
| VST Vistra Corp. | 0.61% | 29,000 | $4.4M | New |
| XMTR Xometry Inc. Class A | 0.59% | 102,650 | $4.2M | Reduce -19.5% |
| ALNT Allient Inc. | 0.39% | 47,000 | $2.8M | New |
| AI C3.AI Inc. Class A | 0.38% | 318,950 | $2.7M | New |
| SEI Solaris Energy Infrastructur | 0.38% | 47,500 | $2.7M | New |
| KVYO Klaviyo Inc. Class A | 0.35% | 129,200 | $2.5M | New |
| OIH Vaneck Oil Services ETF | 0.32% | 5,700 | $2.3M | Add +50.0% |
| ONB Old National Bancorp | 0.31% | 100,000 | $2.2M | No change |
| ROOT Root Inc./Oh Class A | 0.17% | 27,000 | $1.2M | New |
| XHB SS SPDR S&P Homebldrs ETF | 0.14% | 10,200 | $1.0M | Reduce -45.7% |
| RVMD Revolution Medicines Inc. | 0.11% | 8,287 | $806K | Reduce -92.1% |
| BTBT Bit Digital Inc. | 0.05% | 253,000 | $331K | Reduce -76.3% |
| BTG B2GOLD Corp. | 0.03% | 45,800 | $207K | Reduce -96.7% |
| STEM Stem Inc. | 0.01% | 8,302 | $73K | No change |
Options reported separately and not counted above: APPLOVIN CORP calls ($6.0M), GENEDX HOLDINGS CORP calls ($3.2M).
Portfolio Sells Q4 2025 → Q1 2026
| AVGO Broadcom Inc. | Reduce -67.2% | 3.02% | −2.19 |
| CLS Celestica Inc. | Sold out | 0.00% | −2.11 |
| CYBR Cyberark Software Ltd./Israel | Sold out | 0.00% | −2.07 |
| PWR Quanta Services Inc. | Reduce -84.3% | 1.20% | −1.77 |
| MRVL Marvell Technology Inc. | Sold out | 0.00% | −1.48 |
| BABA Alibaba Group Holding-SP ADR | Sold out | 0.00% | −1.42 |
| HUT Hut 8 Corp. | Reduce -78.3% | 0.96% | −1.23 |
| APP AppLovin Corp. Class A | Reduce -32.5% | 4.52% | −1.21 |
| WDC Western Digital Corp. | Sold out | 0.00% | −1.02 |
| PM Philip Morris International | Sold out | 0.00% | −1.02 |
| XBI SS SPDR S&P Biotech ETF | Sold out | 0.00% | −0.96 |
| TWLO Twilio Inc. Class A | Sold out | 0.00% | −0.94 |
| FTAI Ftai Aviation Ltd. | Sold out | 0.00% | −0.94 |
| BSX Boston Scientific Corp. | Sold out | 0.00% | −0.92 |
| DG Dollar General Corp. | Sold out | 0.00% | −0.85 |
| EOSE Eos Energy Enterprises Inc. | Sold out | 0.00% | −0.81 |
| GEV GE Vernova Inc. | Sold out | 0.00% | −0.79 |
| LOAR Loar Holdings Inc. | Sold out | 0.00% | −0.76 |
| FIGR Figure Technology Solut Class A | Sold out | 0.00% | −0.74 |
| AGI Alamos Gold Inc. Class A | Sold out | 0.00% | −0.71 |
| ZS Zscaler Inc. | Sold out | 0.00% | −0.70 |
| CRM Salesforce Inc. | Sold out | 0.00% | −0.70 |
| FDX FedEx Corp. | Sold out | 0.00% | −0.68 |
| HOOD Robinhood Markets Inc. Class A | Sold out | 0.00% | −0.67 |
| CEG Constellation Energy | Sold out | 0.00% | −0.63 |
| TBBB BBB Foods Inc. Class A | Sold out | 0.00% | −0.62 |
| RYTM Rhythm Pharmaceuticals Inc. | Sold out | 0.00% | −0.62 |
| MTZ Mastec Inc. | Sold out | 0.00% | −0.62 |
| ADI Analog Devices Inc. | Sold out | 0.00% | −0.56 |
| COF Capital One Financial Corp. | Sold out | 0.00% | −0.53 |
| WGO Winnebago Industries | Sold out | 0.00% | −0.52 |
| GLD SPDR Gold Shares | Sold out | 0.00% | −0.51 |
| STX Seagate Technology Holdings | Reduce -76.2% | 0.98% | −0.48 |
| RVMD Revolution Medicines Inc. | Reduce -92.1% | 0.11% | −0.48 |
| GS Goldman Sachs Group Inc. | Sold out | 0.00% | −0.46 |
| TSM Taiwan Semiconductor-SP ADR | Reduce -59.5% | 3.67% | −0.45 |
| BTG B2GOLD Corp. | Reduce -96.7% | 0.03% | −0.41 |
| DDOG Datadog Inc. Class A | Sold out | 0.00% | −0.39 |
| SGI Somnigroup International Inc. | Sold out | 0.00% | −0.37 |
| IOT Samsara Inc. Class A | Sold out | 0.00% | −0.37 |
| GIS General Mills Inc. | Sold out | 0.00% | −0.35 |
| ARIS Aris Mining Corp. | Sold out | 0.00% | −0.35 |
| TLN Talen Energy Corp. | Sold out | 0.00% | −0.32 |
| PCOR Procore Technologies Inc. | Sold out | 0.00% | −0.32 |
| LYV Live Nation Entertainment Inc. | Sold out | 0.00% | −0.31 |
| MA Mastercard Inc. Class A | Sold out | 0.00% | −0.30 |
| TTD Trade Desk Inc./the Class A | Sold out | 0.00% | −0.28 |
| VIA Via Transportation Inc. Class A | Sold out | 0.00% | −0.27 |
| AMN Amn Healthcare Services Inc. | Sold out | 0.00% | −0.25 |
| ASND Ascendis Pharma A/S | Sold out | 0.00% | −0.23 |
Portfolio Buys Q4 2025 → Q1 2026
| AMAT Applied Materials Inc. | New | 3.13% | +3.13 |
| COHR Coherent Corp. | Add +51.8% | 3.90% | +2.89 |
| CRWD CrowdStrike Holdings Inc. Class A | New | 2.55% | +2.55 |
| LRCX Lam Research Corp. | Add +47.5% | 2.89% | +2.10 |
| MU Micron Technology Inc. | Add +72.3% | 2.16% | +1.62 |
| QXO Qxo Inc. | New | 1.59% | +1.59 |
| META Meta Platforms Inc. Class A | Add +19.9% | 2.91% | +1.50 |
| V Visa Inc. Class A | Add +20.4% | 2.83% | +1.45 |
| BE Bloom Energy Corp. Class A | New | 1.19% | +1.19 |
| ANET Arista Networks Inc. | Add +248.9% | 1.35% | +1.14 |
| FN Fabrinet | New | 0.94% | +0.94 |
| SNOW Snowflake Inc. | New | 0.84% | +0.84 |
| MCHP Microchip Technology Inc. | Add +21.0% | 1.33% | +0.78 |
| AAOI Applied Optoelectronics Inc. | Add +2.0% | 0.95% | +0.76 |
| WGS Genedx Holdings Corp. | Add +15.3% | 6.21% | +0.69 |
| VST Vistra Corp. | New | 0.61% | +0.61 |
| TDUP Thredup Inc. Class A | Add +170.1% | 0.67% | +0.42 |
| ALNT Allient Inc. | New | 0.39% | +0.39 |
| AI C3.AI Inc. Class A | New | 0.38% | +0.38 |
| SEI Solaris Energy Infrastructur | New | 0.38% | +0.38 |
| LUXE Luxexperience BV | Add +15.2% | 0.66% | +0.36 |
| KVYO Klaviyo Inc. Class A | New | 0.35% | +0.35 |
| OIH Vaneck Oil Services ETF | Add +50.0% | 0.32% | +0.25 |
| ROOT Root Inc./Oh Class A | New | 0.17% | +0.17 |
Options Activity Q4 2025 → Q1 2026
| MSFT Microsoft Corp. | call | Sold out | 1,250 | $60.5Mbefore exit |
| AMAZON COM INC | call | Sold out | 2,600 | $60.0Mbefore exit |
| ALPHABET INC | call | Sold out | 825 | $25.8Mbefore exit |
| META PLATFORMS INC | call | Sold out | 300 | $19.8Mbefore exit |
| DELTA AIR LINES INC DEL | call | Sold out | 1,750 | $12.1Mbefore exit |
| WGS Genedx Holdings Corp. | call | Sold out | 600 | $7.8Mbefore exit |
| TERAWULF INC | call | Sold out | 6,250 | $7.2Mbefore exit |
| APPLOVIN CORP | call | New | 150 | $6.0M |
| ALIBABA GROUP HOLDING LTD | call | Sold out | 365 | $5.4Mbefore exit |
| GENEDX HOLDINGS CORP | call | New | 500 | $3.2M |
| GENEDX HOLDINGS CORP | call | Sold out | 225 | $2.9Mbefore exit |
Calls and puts are listed by the shares they cover; their value is not part of the stock holdings above.
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 70 | $1.1B | SNDK, AMZN, MU, WGS, AMAT |
| Q1 2026 | 59 | $713.0M | AMZN, WGS, APP, LITE, COHR |
| Q4 2025 | 97 | $1.4B | AMZN, APP, WGS, AVGO, TSM |
| Q3 2025 | 94 | $1.3B | APP, AMZN, AVGO, WGS, TSM |
| Q2 2025 | 83 | $974.6M | AMZN, AVGO, WGS, TSM, APP |
| Q1 2025 | 62 | $624.2M | AMZN, WGS, AVGO, APP, PWR |
| Q4 2024 | 88 | $1.2B | AVGO, NVDA, AMZN, MSFT, META |
| Q3 2024 | 85 | $985.5M | NVDA, AMZN, AVGO, MSFT, META |
| Q2 2024 | 75 | $880.6M | AMZN, NVDA, MSFT, AVGO, META |
| Q1 2024 | 121 | $1.1B | AMZN, NVDA, MSFT, EG, META |