Zweig-DiMenna Associates LLC
In its 13F for Q2 2026 (holdings as of June 30, 2026, filed August 13, 2026), Zweig-DiMenna Associates LLC reported 70 stock positions worth $1.1 billion. Its top holding was Sandisk (SNDK) at 6.7% of the portfolio, followed by Amazon.com (AMZN, 4.9%) and Micron Technology (MU, 4.3%). Compared with Q1 2026, it opened 21 new positions, sold out of 10, added to 13 and reduced 26. The biggest buy was Sandisk (SNDK, shares +31%) and the biggest sale Amazon.com (AMZN, shares −37%).
- Most Recent 13F
- Q2 2026
- Location
- NEW YORK, NY
- CIK
- 0001533950
- Portfolio Value
- $1.1B (Q2 2026)
- SEC Filing
- 0001104659-26-095779 ↗ filed Aug 13, 2026
Holdings Value
Holdings 70 stocks · $1.1B
| SNDK Sandisk Corp. | 6.73% | 32,609 | $74.1M | Add +31.2% |
| AMZN Amazon.com Inc. | 4.90% | 226,579 | $54.0M | Reduce -37.0% |
| MU Micron Technology Inc. | 4.33% | 41,377 | $47.8M | Reduce -9.1% |
| WGS Genedx Holdings Corp. | 3.56% | 571,950 | $39.3M | Reduce -17.0% |
| AMAT Applied Materials Inc. | 3.55% | 54,128 | $39.1M | Reduce -17.1% |
| LRCX Lam Research Corp. | 3.50% | 88,966 | $38.6M | Reduce -7.8% |
| AMD Advanced Micro Devices | 3.33% | 63,226 | $36.7M | Add +81.9% |
| COHR Coherent Corp. | 3.31% | 92,371 | $36.4M | Reduce -20.9% |
| APP AppLovin Corp. Class A | 3.21% | 68,675 | $35.4M | Reduce -15.2% |
| LITE Lumentum Holdings Inc. | 2.85% | 36,553 | $31.4M | Reduce -10.3% |
| TSM Taiwan Semiconductor-SP ADR | 2.80% | 64,728 | $30.9M | Reduce -16.4% |
| NVDA Nvidia Corp. | 2.66% | 146,615 | $29.3M | Add +12.2% |
| V Visa Inc. Class A | 2.40% | 77,150 | $26.5M | Add +15.7% |
| AVGO Broadcom Inc. | 2.39% | 69,814 | $26.4M | Add +0.3% |
| RVMD Revolution Medicines Inc. | 2.04% | 120,200 | $22.5M | Add +1350.5% |
| NXPI NXP Semiconductors NV | 2.02% | 79,301 | $22.3M | Add +96.2% |
| NTRA Natera Inc. | 2.02% | 81,982 | $22.3M | Add +7.5% |
| PL Planet Labs PBC | 1.98% | 660,200 | $21.9M | New |
| VRT Vertiv Holdings Co. Class A | 1.93% | 63,502 | $21.3M | Reduce -20.2% |
| TER Teradyne Inc. | 1.67% | 38,034 | $18.4M | No change |
| BE Bloom Energy Corp. Class A | 1.58% | 57,525 | $17.4M | Reduce -8.0% |
| STX Seagate Technology Holdings | 1.56% | 17,844 | $17.2M | No change |
| DELL Dell Technologies -C | 1.47% | 37,500 | $16.2M | New |
| WULF Terawulf Inc. | 1.43% | 637,982 | $15.8M | Reduce -4.5% |
| CRWD CrowdStrike Holdings Inc. Class A | 1.42% | 20,511 | $15.7M | Reduce -55.9% |
| COF Capital One Financial Corp. | 1.37% | 75,000 | $15.0M | New |
| META Meta Platforms Inc. Class A | 1.36% | 26,520 | $14.9M | Reduce -27.0% |
| GOOGL Alphabet Inc. Class A | 1.34% | 41,450 | $14.8M | Reduce -19.8% |
| ADI Analog Devices Inc. | 1.31% | 36,250 | $14.4M | New |
| MRVL Marvell Technology Inc. | 1.30% | 48,233 | $14.4M | New |
| PWR Quanta Services Inc. | 1.30% | 19,850 | $14.3M | Add +27.6% |
| SEI Solaris Energy Infrastructur | 1.26% | 172,650 | $13.9M | Add +263.5% |
| INTC Intel Corp. | 1.25% | 98,400 | $13.7M | New |
| DAL Delta Air Lines Inc. | 1.14% | 133,850 | $12.5M | Reduce -36.9% |
| SPOT Spotify Technology SA | 1.13% | 27,021 | $12.4M | Reduce -1.4% |
| ONTO Onto Innovation Inc. | 1.12% | 32,600 | $12.3M | New |
| MCHP Microchip Technology Inc. | 1.04% | 125,644 | $11.5M | Reduce -14.5% |
| CDNA Caredx Inc. | 1.01% | 388,812 | $11.1M | Reduce -0.4% |
| MSFT Microsoft Corp. | 0.99% | 29,200 | $10.9M | Add +4.8% |
| AAOI Applied Optoelectronics Inc. | 0.97% | 71,835 | $10.6M | Reduce -10.3% |
| ANET Arista Networks Inc. | 0.96% | 62,304 | $10.6M | Reduce -20.6% |
| PRCH Porch Group Inc. | 0.95% | 693,738 | $10.4M | Reduce -17.4% |
| QXO Qxo Inc. | 0.94% | 598,900 | $10.3M | Add +2.8% |
| XMTR Xometry Inc. Class A | 0.90% | 102,650 | $9.9M | No change |
| SPNT Siriuspoint Ltd. | 0.87% | 397,350 | $9.5M | No change |
| TDUP Thredup Inc. Class A | 0.72% | 1,154,000 | $7.9M | Reduce -20.7% |
| EMBJ Embraer SA-Spon ADR | 0.71% | 122,161 | $7.8M | No change |
| FN Fabrinet | 0.66% | 12,900 | $7.3M | No change |
| NFLX Netflix Inc. | 0.65% | 101,000 | $7.2M | No change |
| KTOS Kratos Defense & Security | 0.65% | 143,026 | $7.1M | Reduce -7.7% |
| HUT Hut 8 Corp. | 0.64% | 60,738 | $7.0M | Reduce -58.3% |
| TLN Talen Energy Corp. | 0.62% | 17,650 | $6.8M | New |
| FPS Forgent Power Solutions Class A | 0.55% | 109,268 | $6.1M | New |
| RYTM Rhythm Pharmaceuticals Inc. | 0.42% | 42,100 | $4.7M | New |
| LUXE Luxexperience BV | 0.40% | 590,000 | $4.4M | No change |
| SNOW Snowflake Inc. | 0.33% | 14,500 | $3.7M | Reduce -63.4% |
| BORR Borr Drilling Ltd. | 0.33% | 877,000 | $3.6M | New |
| QNT Quantinuum Inc. Class A | 0.30% | 41,000 | $3.4M | New |
| AI C3.AI Inc. Class A | 0.30% | 362,450 | $3.3M | Add +13.6% |
| TBBB BBB Foods Inc. Class A | 0.24% | 64,100 | $2.7M | New |
| TBN Tamboran Resources Corp. | 0.24% | 80,500 | $2.6M | New |
| ONB Old National Bancorp | 0.23% | 100,000 | $2.6M | No change |
| AADX Applied Aerospace & Defense | 0.23% | 110,500 | $2.5M | New |
| GIS General Mills Inc. | 0.22% | 71,000 | $2.5M | New |
| VIAV Viavi Solutions Inc. | 0.17% | 38,924 | $1.9M | New |
| QBTS D-Wave Quantum Inc. | 0.12% | 54,800 | $1.3M | New |
| DDOG Datadog Inc. Class A | 0.11% | 4,500 | $1.2M | New |
| DPC DPC Holdings PLC | 0.02% | 5,330 | $261K | New |
| DUOL Duolingo | 0.02% | 1,500 | $173K | New |
| STEM Stem Inc. | 0.01% | 8,302 | $65K | No change |
Portfolio Sells Q1 2026 → Q2 2026
| AMZN Amazon.com Inc. | Reduce -37.0% | 4.90% | −5.61 |
| WGS Genedx Holdings Corp. | Reduce -17.0% | 3.56% | −2.65 |
| META Meta Platforms Inc. Class A | Reduce -27.0% | 1.36% | −1.56 |
| APP AppLovin Corp. Class A | Reduce -15.2% | 3.21% | −1.31 |
| LITE Lumentum Holdings Inc. | Reduce -10.3% | 2.85% | −1.17 |
| CRWD CrowdStrike Holdings Inc. Class A | Reduce -55.9% | 1.42% | −1.13 |
| KTOS Kratos Defense & Security | Reduce -7.7% | 0.65% | −0.89 |
| VRT Vertiv Holdings Co. Class A | Reduce -20.2% | 1.93% | −0.87 |
| TSM Taiwan Semiconductor-SP ADR | Reduce -16.4% | 2.80% | −0.87 |
| DAL Delta Air Lines Inc. | Reduce -36.9% | 1.14% | −0.84 |
| SNPS Synopsys Inc. | Sold out | 0.00% | −0.81 |
| GOOGL Alphabet Inc. Class A | Reduce -19.8% | 1.34% | −0.74 |
| SPOT Spotify Technology SA | Reduce -1.4% | 1.13% | −0.74 |
| LVS Las Vegas Sands Corp. | Sold out | 0.00% | −0.74 |
| VST Vistra Corp. | Sold out | 0.00% | −0.61 |
| COHR Coherent Corp. | Reduce -20.9% | 3.31% | −0.59 |
| SNOW Snowflake Inc. | Reduce -63.4% | 0.33% | −0.50 |
| ANET Arista Networks Inc. | Reduce -20.6% | 0.96% | −0.39 |
| ALNT Allient Inc. | Sold out | 0.00% | −0.39 |
| KVYO Klaviyo Inc. Class A | Sold out | 0.00% | −0.35 |
| OIH Vaneck Oil Services ETF | Sold out | 0.00% | −0.32 |
| HUT Hut 8 Corp. | Reduce -58.3% | 0.64% | −0.32 |
| MCHP Microchip Technology Inc. | Reduce -14.5% | 1.04% | −0.29 |
| ROOT Root Inc./Oh Class A | Sold out | 0.00% | −0.17 |
| XHB SS SPDR S&P Homebldrs ETF | Sold out | 0.00% | −0.14 |
| BTBT Bit Digital Inc. | Sold out | 0.00% | −0.05 |
| BTG B2GOLD Corp. | Sold out | 0.00% | −0.03 |
| AAOI Applied Optoelectronics Inc. | Reduce -10.3% | 0.97% | +0.02 |
| TDUP Thredup Inc. Class A | Reduce -20.7% | 0.72% | +0.05 |
| CDNA Caredx Inc. | Reduce -0.4% | 1.01% | +0.06 |
| WULF Terawulf Inc. | Reduce -4.5% | 1.43% | +0.08 |
| PRCH Porch Group Inc. | Reduce -17.4% | 0.95% | +0.10 |
| BE Bloom Energy Corp. Class A | Reduce -8.0% | 1.58% | +0.39 |
| AMAT Applied Materials Inc. | Reduce -17.1% | 3.55% | +0.42 |
| LRCX Lam Research Corp. | Reduce -7.8% | 3.50% | +0.61 |
| MU Micron Technology Inc. | Reduce -9.1% | 4.33% | +2.18 |
Portfolio Buys Q1 2026 → Q2 2026
| SNDK Sandisk Corp. | Add +31.2% | 6.73% | +4.51 |
| AMD Advanced Micro Devices | Add +81.9% | 3.33% | +2.34 |
| PL Planet Labs PBC | New | 1.98% | +1.98 |
| RVMD Revolution Medicines Inc. | Add +1350.5% | 2.04% | +1.93 |
| DELL Dell Technologies -C | New | 1.47% | +1.47 |
| COF Capital One Financial Corp. | New | 1.37% | +1.37 |
| ADI Analog Devices Inc. | New | 1.31% | +1.31 |
| MRVL Marvell Technology Inc. | New | 1.30% | +1.30 |
| INTC Intel Corp. | New | 1.25% | +1.25 |
| ONTO Onto Innovation Inc. | New | 1.12% | +1.12 |
| NXPI NXP Semiconductors NV | Add +96.2% | 2.02% | +0.91 |
| SEI Solaris Energy Infrastructur | Add +263.5% | 1.26% | +0.88 |
| TLN Talen Energy Corp. | New | 0.62% | +0.62 |
| FPS Forgent Power Solutions Class A | New | 0.55% | +0.55 |
| RYTM Rhythm Pharmaceuticals Inc. | New | 0.42% | +0.42 |
| BORR Borr Drilling Ltd. | New | 0.33% | +0.33 |
| QNT Quantinuum Inc. Class A | New | 0.30% | +0.30 |
| TBBB BBB Foods Inc. Class A | New | 0.24% | +0.24 |
| TBN Tamboran Resources Corp. | New | 0.24% | +0.24 |
| AADX Applied Aerospace & Defense | New | 0.23% | +0.23 |
| GIS General Mills Inc. | New | 0.22% | +0.22 |
| VIAV Viavi Solutions Inc. | New | 0.17% | +0.17 |
| QBTS D-Wave Quantum Inc. | New | 0.12% | +0.12 |
| DDOG Datadog Inc. Class A | New | 0.11% | +0.11 |
| PWR Quanta Services Inc. | Add +27.6% | 1.30% | +0.10 |
| DPC DPC Holdings PLC | New | 0.02% | +0.02 |
| DUOL Duolingo | New | 0.02% | +0.02 |
| AI C3.AI Inc. Class A | Add +13.6% | 0.30% | −0.08 |
| NTRA Natera Inc. | Add +7.5% | 2.02% | −0.12 |
| V Visa Inc. Class A | Add +15.7% | 2.40% | −0.43 |
| MSFT Microsoft Corp. | Add +4.8% | 0.99% | −0.46 |
| NVDA Nvidia Corp. | Add +12.2% | 2.66% | −0.53 |
| AVGO Broadcom Inc. | Add +0.3% | 2.39% | −0.63 |
| QXO Qxo Inc. | Add +2.8% | 0.94% | −0.65 |
Options Activity Q1 2026 → Q2 2026
| APPLOVIN CORP | call | Sold out | 150 | $6.0Mbefore exit |
| GENEDX HOLDINGS CORP | call | Sold out | 500 | $3.2Mbefore 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 |