GC
Gunderson Capital Management LLC SEC 13F Holdings (Q2 2026) — Top Position: ADVANCED MICRO DEVICES
Gunderson Capital Management LLCCIK: 0001792397
Diversified strategySector-focusedMomentum follower
Total reported value
$370.3M
Reporting period: 2026-06-30 · Number of holdings: 52
Gunderson Capital Management LLC disclosed 52 holdings in its latest 13F filing for the period ending 2026-06-30, with total reported value of $370.3M and a quarterly turnover rate of 76.2%.
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Personality snowflake
- Concentration
- 14.1
- Portfolio Stability
- 76.17
- Momentum
- 100
- Sector conviction
- 100
- Diversification
- 100
- Sizing Uniformity
- 90.78
Gunderson Capital Management LLC's disclosed holdings carry a Herfindahl concentration index of 0.035 — mathematically equivalent to about 28 equally-sized positions, well below its 52 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 0.92), 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.govNew buy MRVL
Sold out CCJ
Sold out PLTR
New buy KLAC
Sold out B
Add MU
+4.6% $14.9M
Holdings Map
New buyAddUnchangedTrim
Top 10 holdings by weight
Full holdings list this quarter
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | AMD | Advanced Micro Devices | Stock-Tech | 6.84% | +3.10% | -0.78% | |
| 2 | DELL | Dell Technologies -c | Stock-Tech | 5.76% | +2.39% | +0.64% | |
| 3 | MU | Micron Technology Inc | Stock-Tech | 5.61% | +3.18% | +4.63% | |
| 4 | AMAT | Applied Materials Inc | Stock-Tech | 4.80% | +1.50% | +6.37% | |
| 5 | MRVL | Marvell Technology Inc | Stock-Tech | 4.75% | +4.75% | NEW | |
| 6 | TSM | Taiwan Semiconductor-sp Adr | Stock-Tech | 4.66% | -0.36% | +1.78% | |
| 7 | EWY | Ishares Msci South Korea ETF | ETF-Other | 4.28% | +0.87% | +18.56% | |
| 8 | ASML | ASML Holding N.V. | Stock-Tech | 3.92% | -0.06% | +1.17% | |
| 9 | NVDA | Nvidia CORP | Stock-Tech | 3.76% | -0.88% | +9.54% | |
| 10 | KLAC | Kla CORP | Stock-Tech | 3.54% | +3.54% | NEW | |
| 11 | GEV | GE Vernova Inc | Stock-Industrials | 3.30% | -0.51% | -0.45% | |
| 12 | STX | Seagate Technology Holdings plc | Stock-Tech | 3.26% | +1.54% | +18.94% | |
| 13 | LLY | Eli Lilly & Co | Stock-Healthcare | 3.18% | +3.18% | NEW | |
| 14 | NBIS | Nebius Group N.V. | Stock-Other | 3.12% | +1.37% | +3.47% | |
| 15 | PWR | Quanta Services Inc | Stock-Industrials | 2.81% | -0.52% | -0.37% | |
| 16 | ANET | Arista Networks Inc | Stock-Tech | 2.76% | +2.76% | NEW | |
| 17 | GE | General Electric | Stock-Industrials | 2.65% | -0.47% | -0.25% | |
| 18 | SNDK | Sandisk CORP | Stock-Tech | 2.39% | -1.28% | -71.85% | |
| 19 | AVGO | Broadcom Inc | Stock-Tech | 2.36% | -0.48% | +5.37% | |
| 20 | HAL | Halliburton Co | Stock-Energy | 2.27% | -1.82% | -1.14% | |
| 21 | ARM | Arm Holdings Plc-adr | Stock-Tech | 2.20% | -0.65% | -48.86% | |
| 22 | AGX | Argan Inc | Stock-Industrials | 2.02% | -0.10% | +0.29% | |
| 23 | TSEM | Tower Semiconductor Ltd. | Stock-Tech | 1.85% | -0.07% | +0.19% | |
| 24 | LNG | Cheniere Energy Inc | Stock-Energy | 1.71% | -1.45% | -0.70% | |
| 25 | ADI | Analog Devices Inc | Stock-Tech | 1.71% | -0.28% | +6.53% | |
| 26 | FTI | TechnipFMC plc | Stock-Energy | 1.45% | -0.89% | +0.15% | |
| 27 | TRGP | Targa Resources CORP | Stock-Energy | 1.39% | -0.64% | -1.22% | |
| 28 | CRWV | Coreweave Inc-cl A | Stock-Tech | 1.31% | -0.11% | +11.90% | |
| 29 | SEI | Solaris Energy Infrastructur | Stock-Energy | 1.31% | -0.11% | -0.10% | |
| 30 | CLS | Celestica Inc | Stock-Tech | 1.29% | +1.29% | NEW | |
| 31 | CIEN | Ciena CORP | Stock-Tech | 1.13% | +1.13% | NEW | |
| 32 | MP | Mp Materials CORP | Stock-Materials | 1.05% | -0.34% | +0.00% | |
| 33 | DVN | Devon Energy CORP | Stock-Energy | 0.99% | -0.89% | -0.58% | |
| 34 | NVO | Novo-nordisk A/s-spons Adr | Stock-Healthcare | 0.88% | -0.18% | -1.49% | |
| 35 | BKR | Baker Hughes Co | Stock-Energy | 0.78% | +0.78% | NEW | |
| 36 | AAPL | Apple Inc | Stock-Tech | 0.73% | +0.06% | +48.26% | |
| 37 | VG | Venture Global Inc-cl A | Stock-Energy | 0.54% | -0.65% | -0.93% | |
| 38 | AMZN | Amazon.com Inc | Stock-Consumer Disc | 0.33% | +0.11% | +107.58% | |
| 39 | QQQ | Invesco Qqq Trust Series 1 | ETF-Tech | 0.30% | +0.12% | +109.56% | |
| 40 | COST | Costco Wholesale CORP | Stock-Consumer Staples | 0.15% | -0.08% | +5.87% | |
| 41 | GOOGL | Alphabet Inc-cl A | Stock-Comm Services | 0.11% | +0.11% | NEW | |
| 42 | TSLA | Tesla Inc | Stock-Consumer Disc | 0.10% | +0.10% | NEW | |
| 43 | XLK | Ss Technology Select Sector | ETF-Tech | 0.10% | +0.01% | +12.06% | |
| 44 | SO | Southern Co/the | Stock-Utilities | 0.09% | -0.09% | -24.36% | |
| 45 | ETN | Eaton Corporation plc | Stock-Industrials | 0.08% | -0.03% | -0.95% | |
| 46 | MYRG | Myr Group Inc/delaware | Stock-Industrials | 0.08% | +0.08% | NEW | |
| 47 | VTI | Vanguard Total Stock Mkt ETF | ETF-Other | 0.07% | +0.07% | NEW | |
| 48 | CRDO | Credo Technology Group Holding Ltd | Stock-Tech | 0.07% | +0.07% | NEW | |
| 49 | EFXT | Enerflex LTD | Stock-Other | 0.06% | -0.02% | +0.46% | |
| 50 | JPM | Jpmorgan Chase & Co | Stock-Financials | 0.06% | +0.06% | NEW |
1–50 of 52
Portfolio Performance
Performance for Q3 2026
-5.7%
Performance Last 4 Quarters
+26.6%
- Stdev
- +23.4%
- Beta
- +1.42
- Alpha
- -2.4%
- Max Drawdown
- -16.4%
- Annualized Perf
- +25.8%
- Batting Avg vs S&P
- +61.1%
- Sortino
- +1.88
- Stutzer
- +0.32
- Treynor
- +0.18
- Sterling
- +1.25
- Calmar
- +1.58
- Information Ratio
- +0.38
- Tracking Error
- +15.6%
- Stdev Down
- +13.7%
- Winning Months %
- +69.4%
- Losing Months %
- +30.6%
- Best 12 Months
- +51.4%
- Worst 12 Months
- -7.5%
- Efficiency Ratio
- +0.49
- Sharpe
- +1.1
- Stdev Sectors
- +20.6%
- Skewness
- -0.4
- Kurtosis
- +0.44
- Upside Potential
- +3.4
Reported value over time
Sector allocation
Sector allocation over time
Quarterly history
| Period | Holdings | Total value | Stability | Top holdings | |
|---|---|---|---|---|---|
| 2026 Q2 | 52 | $370.3M | 76 | ||
| 2026 Q1 | 46 | $239.2M | 100 | ||
| 2025 Q4 | 40 | $221.9M | 100 | ||
| 2025 Q3 | 53 | $271.4M | 84 | ||
| 2025 Q2 | 47 | $239.2M | 0 | ||
| 2025 Q1 | 29 | $155.4M | 100 | ||
| 2024 Q4 | 37 | $203.4M | 0 | ||
| 2024 Q3 | 40 | $236.1M | 0 | ||
| 2024 Q2 | 39 | $233.0M | 0 | ||
| 2024 Q1 | 41 | $215.3M | 0 | ||
| 2023 Q4 | 47 | $175.0M | 0 | ||
| 2023 Q3 | 49 | $147.0M | 0 | ||
| 2023 Q2 | 42 | $151.3M | 0 | ||
| 2023 Q1 | 43 | $134.6M | 0 | ||
| 2022 Q4 | 26 | $54.8M | 0 | ||
| 2022 Q3 | 20 | $71.0M | 0 | ||
| 2022 Q2 | 41 | $117.3M | 0 | ||
| 2021 Q1 | 43 | $136.1M | 100 | ||
| 2020 Q4 | 47 | $152.9M | 70 | ||
| 2020 Q3 | 44 | $115.5M | 68 | ||
| 2020 Q2 | 51 | $124.3M | 82 | ||
| 2020 Q1 | 33 | $72.2M | 100 | ||
| 2019 Q4 | 45 | $91.5M | 48 | ||
| 2019 Q3 | 55 | $101.0M | 52 | ||
| 2019 Q2 | 57 | $114.0M | 44 | ||
| 2019 Q1 | 61 | $115.2M | 100 | ||
| 2018 Q4 | 12 | $23.0M | 0 |
Holding changes this quarter
Gunderson Capital Management LLC's most significant position changes for 2026-06-30: New buy: Marvell Technology Inc (MRVL); New buy: Kla CORP (KLAC); New buy: Eli Lilly & Co (LLY); Sold out: Cameco CORP (CCJ); New buy: Arista Networks Inc (ANET).
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | MRVL | Marvell Technology Inc | +4.8% | NEW | New buy |
| 2 | KLAC | Kla CORP | +3.5% | NEW | New buy |
| 3 | MU | Micron Technology Inc | +3.2% | +4.63% | Add |
| 4 | LLY | Eli Lilly & Co | +3.2% | NEW | New buy |
| 5 | AMD | Advanced Micro Devices | +3.1% | -0.78% | Trim |
| 6 | ANET | Arista Networks Inc | +2.8% | NEW | New buy |
| 7 | DELL | Dell Technologies -c | +2.4% | +0.64% | Add |
| 8 | STX | Seagate Technology Holdings plc | +1.5% | +18.94% | Add |
| 9 | AMAT | Applied Materials Inc | +1.5% | +6.37% | Add |
| 10 | NBIS | Nebius Group N.V. | +1.4% | +3.47% | Add |
| 11 | CLS | Celestica Inc | +1.3% | NEW | New buy |
| 12 | CIEN | Ciena CORP | +1.1% | NEW | New buy |
| 13 | EWY | Ishares Msci South Korea ETF | +0.9% | +18.56% | Add |
| 14 | BKR | Baker Hughes Co | +0.8% | NEW | New buy |
| 15 | QQQ | Invesco Qqq Trust Series 1 | +0.1% | +109.56% | Add |
| 16 | AMZN | Amazon.com Inc | +0.1% | +107.58% | Add |
| 17 | GOOGL | Alphabet Inc-cl A | +0.1% | NEW | New buy |
| 18 | TSLA | Tesla Inc | +0.1% | NEW | New buy |
| 19 | MYRG | Myr Group Inc/delaware | +0.1% | NEW | New buy |
| 20 | VTI | Vanguard Total Stock Mkt ETF | +0.1% | NEW | New buy |
| 21 | CRDO | Credo Technology Group Holding Ltd | +0.1% | NEW | New buy |
| 22 | AAPL | Apple Inc | +0.1% | +48.26% | Add |
| 23 | JPM | Jpmorgan Chase & Co | +0.1% | NEW | New buy |
| 24 | XLK | Ss Technology Select Sector | 0% | +12.06% | Add |
| 25 | TTI | Tetra Technologies Inc | — | -0.24% | Trim |
| 26 | ✓ | Icecure Medical LTD Caesarea | — | EXIT | Sold out |
| 27 | ✓ | — | NEW | New buy | |
| 28 | EFXT | Enerflex LTD | 0% | +0.46% | Add |
| 29 | ETN | Eaton Corporation plc | 0% | -0.95% | Trim |
| 30 | ASML | ASML Holding N.V. | -0.1% | +1.17% | Add |
| 31 | TSEM | Tower Semiconductor Ltd. | -0.1% | +0.19% | Add |
| 32 | COST | Costco Wholesale CORP | -0.1% | +5.87% | Add |
| 33 | SO | Southern Co/the | -0.1% | -24.36% | Trim |
| 34 | AGX | Argan Inc | -0.1% | +0.29% | Add |
| 35 | CRWV | Coreweave Inc-cl A | -0.1% | +11.90% | Add |
| 36 | SEI | Solaris Energy Infrastructur | -0.1% | -0.10% | Trim |
| 37 | NVO | Novo-nordisk A/s-spons Adr | -0.2% | -1.49% | Trim |
| 38 | ADI | Analog Devices Inc | -0.3% | +6.53% | Add |
| 39 | MP | Mp Materials CORP | -0.3% | +0.00% | Add |
| 40 | TSM | Taiwan Semiconductor-sp Adr | -0.4% | +1.78% | Add |
| 41 | GE | General Electric | -0.5% | -0.25% | Trim |
| 42 | AVGO | Broadcom Inc | -0.5% | +5.37% | Add |
| 43 | GEV | GE Vernova Inc | -0.5% | -0.45% | Trim |
| 44 | PWR | Quanta Services Inc | -0.5% | -0.37% | Trim |
| 45 | TRGP | Targa Resources CORP | -0.6% | -1.22% | Trim |
| 46 | ARM | Arm Holdings Plc-adr | -0.7% | -48.86% | Trim |
| 47 | VG | Venture Global Inc-cl A | -0.7% | -0.93% | Trim |
| 48 | NVDA | Nvidia CORP | -0.9% | +9.54% | Add |
| 49 | DVN | Devon Energy CORP | -0.9% | -0.58% | Trim |
| 50 | FTI | TechnipFMC plc | -0.9% | +0.15% | Add |
1–50 of 60
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Data Source Notice: AlphaSMO is the web's most authoritative 13F / Inside Trader database. Institutional holdings and insider trades presented here are precisely computed to deliver accurate portfolio reporting.
Filing History
FAQ
What is Gunderson Capital Management LLC and what type of investor is it?
Gunderson Capital Management 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 $370.3M, spread across 52 disclosed positions.
What are Gunderson Capital Management LLC's largest equity positions?
Based on the latest 13F filing, Gunderson Capital Management LLC's top holdings by market value are:
1. Advanced Micro Devices (AMD) — $25.3M (6.8%)
2. Dell Technologies -c (DELL) — $21.3M (5.8%)
3. Micron Technology Inc (MU) — $20.8M (5.6%)
4. Applied Materials Inc (AMAT) — $17.8M (4.8%)
5. Marvell Technology Inc (MRVL) — $17.6M (4.8%)
What changes did Gunderson Capital Management LLC make in its most recent portfolio filing?
In the latest reported quarter, Gunderson Capital Management LLC made 60 notable position adjustments: 14 new positions were initiated, 22 existing holdings were added to, 16 positions were partially reduced, and 8 were completely exited. The largest of these moves: New buy: Marvell Technology Inc (MRVL); New buy: Kla CORP (KLAC); New buy: Eli Lilly & Co (LLY); Sold out: Cameco CORP (CCJ); New buy: Arista Networks Inc (ANET)
What sectors does Gunderson Capital Management LLC focus on?
Gunderson Capital Management LLC is concentrated in the following sectors based on its current disclosed equity portfolio:
• Information Technology: 70.3%
• Industrials: 11.9%
• Energy: 11.3%
• Health Care: 4.4%
• Materials: 1.1%
• Consumer Discretionary: 0.5%
Investment Profile
Gunderson Capital Management LLC returned an annualized 25.8% over the trailing 36 months — underperforming the S&P 500 by 2.4 points — based on a reconstructed track record of its disclosed 13F positions, with a beta of 1.42 (more volatile than the market) and a 61% quarterly batting average against the index.
Its portfolio is broadly diversified and fast-trading, with 70.3% of the portfolio concentrated in Information Technology.
Its turnover score has risen from 0 to 76 over the past 4 quarters — a shift toward more active trading.
It has added to its AMD position for two straight quarters, increasing it by $16.5M to reach $25.3M.
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Developer Access
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