Ma Investment Partnership, LP
CIK 1536336 · View on SEC EDGAR ↗
- Portfolio value
- $561.4M
- Positions
- 13
- As of
- June 30, 2026
#3,508 of 9,443 by 13F value · top 37.1%
Portfolio value QoQ: +170.0% 13F does not disclose cash
- Top 10 holdings weight
- 97.51%
- Top 25 holdings weight
- 100.00%
- Positions above 1%
- 12
- Effective number of positions
- 4.7
Based on 13F long-equity holdings only (cash, bonds, shorts not disclosed)
Turnover Q2 2026: 0.0% Est. buys $113,735,000 · sells $0
- New positions
- 3
- Increased
- 2
- Decreased
- 0
- Closed
- 0
On this page
- Performance vs S&P How this manager's 13F portfolio performed against the S&P 500.
- Sector breakdown How the portfolio splits across market sectors.
- Portfolio Every stock this institution reports holding, from its latest 13F.
- Biggest new bets Brand-new positions opened in the latest quarter.
- Top moves The biggest position increases and decreases this quarter.
Performance vs S&P 500
Approximates a buy-and-hold portfolio built from quarterly SEC 13F snapshots. Excludes cash, short positions, options/derivatives, and non-13(f) securities — reflects the disclosed long-equity book only, not total fund AUM. SEC filing lag is up to 45 days; this is not a real-time-copyable timing.
Priceable coverage: 100.0% · Options excluded: 0.0%
Sector breakdown
Technology
71.0%
Industrials
11.4%
Communication Services
6.4%
Retail
4.7%
Communications
4.3%
Financials
1.2%
Telecommunication
1.1%
Full portfolio 13 positions
| Type | Streak | 8Q trend | |||||
|---|---|---|---|---|---|---|---|
| SNDK Sandisk Corporation - Common Stock | $227,373,000 | 40.50% | 100,000 | $163,839,000 | |||
| NVDA NVIDIA Corporation - Common Stock | $80,036,000 | 14.26% | 400,000 | $45,156,000 | Up ×1 | ||
| AMD Advanced Micro Devices, Inc. - Common Stock | $58,091,000 | 10.35% | 100,000 | $37,748,000 | |||
| RDDT Reddit, Inc. Class A Common Stock | $34,716,000 | 6.18% | 200,000 | $21,251,000 | Up ×1 | ||
| VRT Vertiv Holdings, LLC Class A Common Stock | $33,482,000 | 5.96% | 100,000 | $8,424,000 | |||
| SIMO Silicon Motion Technology Corporation - American Depositary Shares, each representing four ordinary shares | $33,333,000 | 5.94% | 100,000 | Up ×1 | |||
| BE Bloom Energy Corporation Class A Common Stock | $30,270,000 | 5.39% | 100,000 | $16,721,000 | |||
| VIAV Viavi Solutions Inc. - Common Stock | $23,875,000 | 4.25% | 500,000 | $7,235,000 | |||
| VSCO Victorias Secret & Co. Common Stock | $16,696,000 | 2.97% | 200,000 | Up ×1 | |||
| BABA Alibaba Group Holding Limited American Depositary Shares each representing eight Ordinary share | $9,598,000 | 1.71% | 100,000 | $-2,948,000 | |||
| LMND Lemonade, Inc. Common Stock | $6,505,000 | 1.16% | 100,000 | $237,000 | |||
| BAND Bandwidth Inc. - Class A Common Stock | $6,330,000 | 1.13% | 100,000 | Up ×1 | |||
| SOGP Sound Group Inc. - American Depositary Shares | $1,122,500 | 0.20% | 100,000 | $-565,500 | |||
| No matches | |||||||
Biggest new bets
New positions opened this quarter, largest first.
Top movers (QoQ)
| Security | Action | Shares Δ | Value Δ |
|---|---|---|---|
| SNDK | Price move only | +0 | +$163.8M |
| NVDA | Bought more | +200K | +$45.2M |
| AMD | Price move only | +0 | +$37.7M |
| RDDT | Bought more | +100K | +$21.3M |
| BE | Price move only | +0 | +$16.7M |
| VRT | Price move only | +0 | +$8.4M |
| VIAV | Price move only | +0 | +$7.2M |
| BABA | Price move only | +0 | -$2.9M |
| SOGP | Price move only | +0 | -$566K |
| LMND | Price move only | +0 | +$237K |