ZA
Zweig-DiMenna Associates LLC 13F Holdings (70 Positions, Q2 2026)
Zweig-DiMenna Associates LLCCIK: 0001533950
Diversified strategySector-focusedMomentum follower
Total reported value
$1.1B
Reporting period: 2026-06-30 · Number of holdings: 70
Zweig-DiMenna Associates LLC disclosed 70 holdings in its latest 13F filing for the period ending 2026-06-30, with total reported value of $1.1B and a quarterly turnover rate of 59.5%.
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Personality snowflake
- Concentration
- 10.26
- Portfolio Stability
- 59.53
- Momentum
- 100
- Sector conviction
- 100
- Diversification
- 100
- Sizing Uniformity
- 91.01
Zweig-DiMenna Associates LLC's disclosed holdings carry a Herfindahl concentration index of 0.026 — mathematically equivalent to about 39 equally-sized positions, well below its 70 actual disclosed holdings. That gap points to a strategy built around a small core of high-conviction bets rather than broad diversification.
Position sizes are fairly uniform across the portfolio (a coefficient of variation of 0.90), suggesting a disciplined, rules-based approach to how much capital goes into each idea.
No strong tilt toward either adding to existing winners or initiating outsized new positions was observed in the latest reported quarter.
Source and citation information
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Recent moves
View source Form 13F filing on SEC.govTrim AMZN
-37.0% -$20.9M
Add SNDK
+31.2% $58.4M
Trim WGS
-17.0% -$5.0M
Add AMD
+81.9% $29.7M
Add MU
-9.1% $32.4M
New buy PL
Holdings Map
New buyAddUnchangedTrim
* This report is exclusively curated by the AlphaSMO team. AlphaSMO is the web's most authoritative 13F / Inside Trader database, delivering precise insider trading and institutional holdings insights.
Top 10 holdings by weight
Full holdings list this quarter
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | SNDK | Sandisk CORP | Stock-Tech | 6.73% | +4.54% | +31.22% | |
| 2 | AMZN | Amazon.com Inc | Stock-Consumer Disc | 4.90% | -5.47% | -37.02% | |
| 3 | MU | Micron Technology Inc | Stock-Tech | 4.33% | +2.20% | -9.06% | |
| 4 | WGS | Genedx Holdings CORP | Stock-Other | 3.56% | -2.57% | -17.02% | |
| 5 | AMAT | Applied Materials Inc | Stock-Tech | 3.55% | +0.46% | -17.11% | |
| 6 | LRCX | Lam Research CORP | Stock-Tech | 3.50% | +0.65% | -7.81% | |
| 7 | AMD | Advanced Micro Devices | Stock-Tech | 3.33% | +2.35% | +81.90% | |
| 8 | COHR | Coherent CORP | Stock-Tech | 3.31% | -0.54% | -20.88% | |
| 9 | APP | Applovin Corp-class A | Stock-Tech | 3.21% | -1.25% | -15.16% | |
| 10 | LITE | Lumentum Holdings Inc | Stock-Tech | 2.85% | -1.12% | -10.30% | |
| 11 | TSM | Taiwan Semiconductor-sp Adr | Stock-Tech | 2.80% | -0.82% | -16.40% | |
| 12 | NVDA | Nvidia CORP | Stock-Tech | 2.66% | -0.49% | +12.23% | |
| 13 | V | Visa Inc-class A Shares | Stock-Financials | 2.40% | -0.39% | +15.67% | |
| 14 | AVGO | Broadcom Inc | Stock-Tech | 2.39% | -0.59% | +0.31% | |
| 15 | RVMD | Revolution Medicines Inc | Stock-Healthcare | 2.04% | +1.93% | +1350.46% | |
| 16 | NXPI | NXP Semiconductors N.V. | Stock-Tech | 2.02% | +0.92% | +96.23% | |
| 17 | NTRA | Natera Inc | Stock-Healthcare | 2.02% | -0.09% | +7.52% | |
| 18 | PL | Planet Labs Pbc | Stock-Industrials | 1.98% | +1.98% | NEW | |
| 19 | VRT | Vertiv Holdings Co-a | Stock-Industrials | 1.93% | -0.83% | -20.21% | |
| 20 | TER | Teradyne Inc | Stock-Tech | 1.67% | +0.11% | — | |
| 21 | BE | Bloom Energy Corp- A | Stock-Industrials | 1.58% | +0.41% | -7.96% | |
| 22 | STX | Seagate Technology Holdings plc | Stock-Tech | 1.56% | +0.59% | — | |
| 23 | DELL | Dell Technologies -c | Stock-Tech | 1.47% | +1.47% | NEW | |
| 24 | WULF | Terawulf Inc | Stock-Financials | 1.43% | +0.10% | -4.47% | |
| 25 | CRWD | Crowdstrike Holdings Inc - A | Stock-Tech | 1.42% | -1.09% | -55.89% | |
| 26 | COF | Capital One Financial CORP | Stock-Financials | 1.37% | +1.37% | NEW | |
| 27 | META | Meta Platforms Inc-class A | Stock-Comm Services | 1.36% | -1.52% | -26.98% | |
| 28 | GOOGL | Alphabet Inc-cl A | Stock-Comm Services | 1.34% | -0.72% | -19.79% | |
| 29 | ADI | Analog Devices Inc | Stock-Tech | 1.31% | +1.31% | NEW | |
| 30 | MRVL | Marvell Technology Inc | Stock-Tech | 1.30% | +1.30% | NEW | |
| 31 | PWR | Quanta Services Inc | Stock-Industrials | 1.30% | +0.12% | +27.65% | |
| 32 | SEI | Solaris Energy Infrastructur | Stock-Energy | 1.26% | +0.89% | +263.47% | |
| 33 | INTC | Intel CORP | Stock-Tech | 1.25% | +1.25% | NEW | |
| 34 | DAL | Delta Air Lines Inc | Stock-Industrials | 1.14% | -0.81% | -36.88% | |
| 35 | SPOT | Spotify Technology S.A. | Stock-Comm Services | 1.13% | -0.71% | -1.40% | |
| 36 | ONTO | Onto Innovation Inc | Stock-Tech | 1.12% | +1.12% | NEW | |
| 37 | MCHP | Microchip Technology Inc | Stock-Tech | 1.04% | -0.28% | -14.53% | |
| 38 | CDNA | Caredx Inc | Stock-Other | 1.01% | +0.07% | -0.37% | |
| 39 | MSFT | Microsoft CORP | Stock-Tech | 0.99% | -0.44% | +4.85% | |
| 40 | AAOI | Applied Optoelectronics Inc | Stock-Tech | 0.97% | +0.03% | -10.26% | |
| 41 | ANET | Arista Networks Inc | Stock-Tech | 0.96% | -0.37% | -20.63% | |
| 42 | PRCH | Porch Group Inc | Stock-Other | 0.95% | +0.12% | -17.36% | |
| 43 | QXO | Qxo Inc | Stock-Industrials | 0.94% | -0.63% | +2.82% | |
| 44 | XMTR | Xometry Inc-a | Stock-Other | 0.90% | +0.32% | — | |
| 45 | SPNT | SiriusPoint Ltd. | Stock-Other | 0.87% | -0.32% | — | |
| 46 | TDUP | Thredup Inc - Class A | Stock-Other | 0.72% | +0.06% | -20.66% | |
| 47 | EMBJ | Embraer Sa-spon Adr | Stock-Industrials | 0.71% | -0.29% | — | |
| 48 | FN | Fabrinet | Stock-Tech | 0.66% | -0.27% | — | |
| 49 | NFLX | Netflix Inc | Stock-Comm Services | 0.65% | -0.69% | — | |
| 50 | KTOS | Kratos Defense & Security | Stock-Industrials | 0.65% | -0.86% | -7.74% |
1–50 of 70
Portfolio Performance
Performance for Q3 2026
-3.5%
Performance Last 4 Quarters
+52.5%
- Stdev
- +24.3%
- Beta
- +1.57
- Alpha
- -1.5%
- Max Drawdown
- -16.3%
- Annualized Perf
- +30.9%
- Batting Avg vs S&P
- +69.4%
- Sortino
- +2.47
- Stutzer
- +0.37
- Treynor
- +0.19
- Sterling
- +1.41
- Calmar
- +1.89
- Information Ratio
- +0.66
- Tracking Error
- +15.2%
- Stdev Down
- +12.1%
- Winning Months %
- +66.7%
- Losing Months %
- +33.3%
- Best 12 Months
- +84.7%
- Worst 12 Months
- -6.6%
- Efficiency Ratio
- +0.6
- Sharpe
- +1.23
- Stdev Sectors
- +19.1%
- Skewness
- +0.39
- Kurtosis
- +1.33
- Upside Potential
- +4.06
Reported value over time
Sector allocation
Sector allocation over time
Quarterly history
| Period | Holdings | Total value | Stability | Top holdings | |
|---|---|---|---|---|---|
| 2026 Q2 | 70 | $1.1B | 60 | ||
| 2026 Q1 | 61 | $722.2M | 100 | ||
| 2025 Q4 | 106 | $1.6B | 55 | ||
| 2025 Q3 | 99 | $1.4B | 85 | ||
| 2025 Q2 | 86 | $1.1B | 0 | ||
| 2025 Q1 | 64 | $627.7M | 100 | ||
| 2024 Q4 | 89 | $1.3B | 0 | ||
| 2024 Q3 | 86 | $990.0M | 0 | ||
| 2024 Q2 | 76 | $888.0M | 0 | ||
| 2024 Q1 | 122 | $1.1B | 0 | ||
| 2023 Q4 | 107 | $886.6M | 0 | ||
| 2023 Q3 | 110 | $844.0M | 0 | ||
| 2023 Q2 | 114 | $800.3M | 0 | ||
| 2023 Q1 | 104 | $738.9M | 0 | ||
| 2022 Q4 | 108 | $686.5M | 0 | ||
| 2022 Q3 | 86 | $459.3M | 0 | ||
| 2022 Q2 | 90 | $526.4M | 0 | ||
| 2022 Q1 | 97 | $750.3M | 0 | ||
| 2021 Q4 | 117 | $1.2B | 0 | ||
| 2021 Q3 | 164 | $1.4B | 0 | ||
| 2021 Q2 | 196 | $1.7B | 100 | ||
| 2021 Q1 | 182 | $1.4B | 78 | ||
| 2020 Q4 | 136 | $1.6B | 70 | ||
| 2020 Q3 | 130 | $1.5B | 61 | ||
| 2020 Q2 | 105 | $948.6M | 100 | ||
| 2020 Q1 | 76 | $754.9M | 85 | ||
| 2019 Q4 | 84 | $1.0B | 71 | ||
| 2019 Q3 | 99 | $1.1B | 62 | ||
| 2019 Q2 | 98 | $1.1B | 67 | ||
| 2019 Q1 | 98 | $898.8M | 81 | ||
| 2018 Q4 | 126 | $1.0B | 69 | ||
| 2018 Q3 | 138 | $1.2B | 90 | ||
| 2018 Q2 | 139 | $1.6B | 85 | ||
| 2018 Q1 | 134 | $1.1B | 94 | ||
| 2017 Q4 | 121 | $921.3M | 96 | ||
| 2017 Q3 | 172 | $1.1B | 71 | ||
| 2017 Q2 | 204 | $1.4B | 100 | ||
| 2017 Q1 | 161 | $1.1B | 100 | ||
| 2016 Q4 | 203 | $1.4B | 91 | ||
| 2016 Q3 | 177 | $1.2B | 68 | ||
| 2016 Q2 | 144 | $979.0M | 89 | ||
| 2016 Q1 | 170 | $1.1B | 100 | ||
| 2015 Q4 | 244 | $2.0B | 88 | ||
| 2015 Q3 | 218 | $2.3B | 82 | ||
| 2015 Q2 | 248 | $1.8B | 80 | ||
| 2015 Q1 | 270 | $2.4B | 82 | ||
| 2014 Q4 | 259 | $2.3B | 89 | ||
| 2014 Q3 | 260 | $2.3B | 70 | ||
| 2014 Q2 | 244 | $2.2B | 92 | ||
| 2014 Q1 | 224 | $1.7B | 100 | ||
| 2013 Q4 | 246 | $2.7B | 81 | ||
| 2013 Q3 | 227 | $2.5B | 84 | ||
| 2013 Q2 | 193 | $2.5B | — |
Holding changes this quarter
Zweig-DiMenna Associates LLC's most significant position changes for 2026-06-30: New buy: Planet Labs Pbc (PL); New buy: Dell Technologies -c (DELL); New buy: Capital One Financial CORP (COF); New buy: Analog Devices Inc (ADI); New buy: Marvell Technology Inc (MRVL).
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | SNDK | Sandisk CORP | +4.5% | +31.22% | Add |
| 2 | AMD | Advanced Micro Devices | +2.4% | +81.90% | Add |
| 3 | MU | Micron Technology Inc | +2.2% | -9.06% | Trim |
| 4 | PL | Planet Labs Pbc | +2% | NEW | New buy |
| 5 | RVMD | Revolution Medicines Inc | +1.9% | +1350.46% | Add |
| 6 | DELL | Dell Technologies -c | +1.5% | NEW | New buy |
| 7 | COF | Capital One Financial CORP | +1.4% | NEW | New buy |
| 8 | ADI | Analog Devices Inc | +1.3% | NEW | New buy |
| 9 | MRVL | Marvell Technology Inc | +1.3% | NEW | New buy |
| 10 | INTC | Intel CORP | +1.3% | NEW | New buy |
| 11 | ONTO | Onto Innovation Inc | +1.1% | NEW | New buy |
| 12 | NXPI | NXP Semiconductors N.V. | +0.9% | +96.23% | Add |
| 13 | SEI | Solaris Energy Infrastructur | +0.9% | +263.47% | Add |
| 14 | LRCX | Lam Research CORP | +0.7% | -7.81% | Trim |
| 15 | TLN | Talen Energy CORP | +0.6% | NEW | New buy |
| 16 | STX | Seagate Technology Holdings plc | +0.6% | — | Unchanged |
| 17 | FPS | Forgent Power Solutions Inc | +0.6% | NEW | New buy |
| 18 | AMAT | Applied Materials Inc | +0.5% | -17.11% | Trim |
| 19 | RYTM | Rhythm Pharmaceuticals Inc | +0.4% | NEW | New buy |
| 20 | BE | Bloom Energy Corp- A | +0.4% | -7.96% | Trim |
| 21 | BORR | Borr Drilling Limited | +0.3% | NEW | New buy |
| 22 | XMTR | Xometry Inc-a | +0.3% | — | Unchanged |
| 23 | ✓ | +0.3% | NEW | New buy | |
| 24 | TBBB | BBB Foods Inc. | +0.2% | NEW | New buy |
| 25 | TBN | Tamboran Resources CORP | +0.2% | NEW | New buy |
| 26 | ✓ | +0.2% | NEW | New buy | |
| 27 | GIS | General Mills Inc | +0.2% | NEW | New buy |
| 28 | VIAV | Viavi Solutions Inc | +0.2% | NEW | New buy |
| 29 | PWR | Quanta Services Inc | +0.1% | +27.65% | Add |
| 30 | PRCH | Porch Group Inc | +0.1% | -17.36% | Trim |
| 31 | QBTS | D-wave Quantum Inc | +0.1% | NEW | New buy |
| 32 | TER | Teradyne Inc | +0.1% | — | Unchanged |
| 33 | DDOG | Datadog Inc - Class A | +0.1% | NEW | New buy |
| 34 | WULF | Terawulf Inc | +0.1% | -4.47% | Trim |
| 35 | CDNA | Caredx Inc | +0.1% | -0.37% | Trim |
| 36 | TDUP | Thredup Inc - Class A | +0.1% | -20.66% | Trim |
| 37 | AAOI | Applied Optoelectronics Inc | 0% | -10.26% | Trim |
| 38 | ✓ | 0% | NEW | New buy | |
| 39 | DUOL | Duolingo | 0% | NEW | New buy |
| 40 | STEM | Stem Inc | — | — | Unchanged |
| 41 | BTG | B2gold CORP | 0% | EXIT | Sold out |
| 42 | ✓ | Bit Digital Inc | -0.1% | EXIT | Sold out |
| 43 | AI | C3.ai Inc-a | -0.1% | +13.64% | Add |
| 44 | ONB | Old National Bancorp | -0.1% | — | Unchanged |
| 45 | NTRA | Natera Inc | -0.1% | +7.52% | Add |
| 46 | XHB | Ss Spdr S&p Homebldrs ETF | -0.1% | EXIT | Sold out |
| 47 | ROOT | Root Inc/oh -class A | -0.2% | EXIT | Sold out |
| 48 | LUXE | Luxexperience BV | -0.3% | — | Unchanged |
| 49 | FN | Fabrinet | -0.3% | — | Unchanged |
| 50 | MCHP | Microchip Technology Inc | -0.3% | -14.53% | Trim |
1–50 of 82
Filing History
FAQ
What is Zweig-DiMenna Associates LLC and what type of investor is it?
Zweig-DiMenna Associates LLC is an investment manager that files SEC Form 13F quarterly, disclosing its U.S. public equity holdings to regulators. As of the most recent reporting period (2026-06-30), the firm manages a tracked equity portfolio valued at approximately $1.1B, spread across 70 disclosed positions.
What are Zweig-DiMenna Associates LLC's largest equity positions?
Based on the latest 13F filing, Zweig-DiMenna Associates LLC's top holdings by market value are:
1. Sandisk CORP (SNDK) — $74.1M (6.7%)
2. Amazon.com Inc (AMZN) — $54.0M (4.9%)
3. Micron Technology Inc (MU) — $47.8M (4.3%)
4. Genedx Holdings CORP (WGS) — $39.3M (3.6%)
5. Applied Materials Inc (AMAT) — $39.1M (3.5%)
What changes did Zweig-DiMenna Associates LLC make in its most recent portfolio filing?
In the latest reported quarter, Zweig-DiMenna Associates LLC made 72 notable position adjustments: 21 new positions were initiated, 13 existing holdings were added to, 26 positions were partially reduced, and 12 were completely exited. The largest of these moves: New buy: Planet Labs Pbc (PL); New buy: Dell Technologies -c (DELL); New buy: Capital One Financial CORP (COF); New buy: Analog Devices Inc (ADI); New buy: Marvell Technology Inc (MRVL)
What sectors does Zweig-DiMenna Associates LLC focus on?
Zweig-DiMenna Associates LLC is concentrated in the following sectors based on its current disclosed equity portfolio:
• Information Technology: 64.3%
• Industrials: 11.4%
• Financials: 6.8%
• Consumer Discretionary: 5.5%
• Communication Services: 5.0%
• Health Care: 4.5%
Investment Profile
Zweig-DiMenna Associates LLC returned an annualized 30.9% over the trailing 36 months — underperforming the S&P 500 by 1.5 points — based on a reconstructed track record of its disclosed 13F positions, with a beta of 1.57 (more volatile than the market) and a 69% quarterly batting average against the index.
Its portfolio is broadly diversified and fast-trading, with 64.3% of the portfolio concentrated in Information Technology.
Its turnover score has risen from 0 to 60 over the past 4 quarters — a shift toward more active trading.
It has added to its SNDK position over the past two quarters (+$58.4M, now $74.1M), while trimming WGS over the same stretch (-$38.5M, still holding $39.3M).
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Developer Access
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