Ma Investment Partnership portfolio
Concentrated managerType not verifiedPortfolio as of Jun 30, 2026 (Q2 2026) · filed with the SEC on Aug 17, 2026 · data updated on Nov 5, 2026 · Q2 2026 13F (filing) ↗ · all its 13F filings ↗
A 13F shows the portfolio at quarter-end and is filed up to 45 days later: these are not real-time positions and they may have changed.
Ma Investment Partnership reported a $561M portfolio of 13 positions to the SEC as of the end of Q2 2026. Its largest positions are SNDK, NVDA, AMD. During the quarter it opened Silicon Motion Technology and Victoria's Secret.
Sections with a free account
What changed this quarter
5 positions with a change (3 new, 2 added to). 5 are listed here: those of 0.5 points of the portfolio or more (up to 12).
- NVIDIA+100%more sharesIncreased16.8% → 14.3%
- Silicon Motion Technology+5.9 ppof portfolioNew— → 5.9%
- Reddit+100%more sharesIncreased6.5% → 6.2%
- Victoria's Secret+3.0 ppof portfolioNew— → 3.0%
- Bandwidth+1.1 ppof portfolioNew— → 1.1%
The figure on the right: for positions added to or trimmed, the change in the number of shares (%); for new and sold ones, the points of the portfolio moved (pp). Below, the portfolio weight before → after. Traded weight: what it bought or sold, excluding price effects.
Top holdings
- SandiskSNDK40.5%
- NVIDIANVDA14.3%
- Advanced Micro DevicesAMD10.3%
- RedditRDDT6.2%
- Vertiv HoldingsVRT6.0%
- Silicon Motion TechnologySIMO5.9%
- Bloom EnergyBE5.4%
- Viavi SolutionsVIAV4.3%
- Victoria's SecretVSXY3.0%
- Alibaba Group HoldingBABA1.7%
- LemonadeLMND1.2%
- BandwidthBAND1.1%
- Sound GroupSOGP0.2%
Portfolio by sector
- ● Information Technology 77%
- ● Industrials 11%
- ● Communication Services 6%
- ● Consumer Discretionary 5%
- ● Financials 1%
Stakes above 5% (13D/13G)
Companies where this filer reported holding 5% or more of the shares. It is the figure from its latest filing on each one; history since December 2024.
How we classify it
Type not verified. It meets the portfolio criteria of a concentrated manager, but its type is not verified: we found no official document that is enough to say what kind of entity it is. It may be an investment firm, but also an adviser adding up client accounts, a bank or a family vehicle. It counts in the tallies like the rest; keep that in mind when reading it. How the type is assigned
Managers of a similar size
A 13F portfolio value between a third and three times this one, whatever the type of filer. It is not a comparison of what they hold.
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