JAT Capital Mgmt LP
CIK 1834438 · View on SEC EDGAR ↗
- Portfolio value
- $47.4M
- Positions
- 16
- As of
- June 30, 2026
#8,731 of 9,443 by 13F value · top 92.5%
Portfolio value QoQ: -20.1% 13F does not disclose cash
- Top 10 holdings weight
- 93.82%
- Top 25 holdings weight
- 100.00%
- Positions above 1%
- 12
- Effective number of positions
- 6.7
Based on 13F long-equity holdings only (cash, bonds, shorts not disclosed)
Turnover Q2 2026: 67.56% Est. buys $36,056,006 · sells $83,598,619
Median holding: 1.5 quarters Tracked Q4 2024–Q2 2026 · 22.9% still held
- New positions
- 10
- Increased
- 1
- Decreased
- 5
- Closed
- 4
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.
- Exited positions Positions the manager fully sold out of last quarter.
Performance vs S&P 500
Annualized: +109.4% · S&P 500: +18.0%
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: 99.5% · Options excluded: 7.0%
Sector breakdown
Technology
67.9%
Communications
12.5%
Financial Services
10.9%
Industrials
4.2%
Utilities
0.8%
Retail
0.6%
Communication Services
0.6%
Other/Unmapped
2.4%
Full portfolio 16 positions
| Type | Streak | 8Q trend | |||||
|---|---|---|---|---|---|---|---|
| WDC Western Digital Corporation - Common Stock | $13,732,480 | 28.97% | 21,500 | ||||
| ORCL Oracle Corporation Common Stock | $7,556,118 | 15.94% | 51,560 | ||||
| MU Micron Technology, Inc. - Common Stock | $5,294,728 | 11.17% | 4,587 | $-6,022,912 | Down ×1 | ||
| HOOD Robinhood Markets, Inc. - Class A Common Stock | $5,151,584 | 10.87% | 51,372 | ||||
| AAOI Applied Optoelectronics, Inc. - Common Stock | $3,926,240 | 8.28% | 26,500 | $3,079,156 | Up ×1 | ||
| IREN IREN Limited - Ordinary Shares | $2,446,555 | 5.16% | 53,500 | Up ×1 | |||
| LITE Lumentum Holdings Inc. - Common Stock | $2,016,441 | 4.25% | 2,350 | $-91,839 | Down ×1 | ||
| COHR Coherent Corp. Common Stock | $1,972,350 | 4.16% | 5,000 | $-7,043,184 | Down ×1 | ||
| STX Seagate Technology Holdings PLC - Ordinary Shares (Ireland) | $1,341,350 | 2.83% | 1,390 | Up ×1 | |||
| MRVL Marvell Technology, Inc. - Common Stock | $1,038,147 | 2.19% | 3,485 | Up ×1 | |||
| NOW ServiceNow, Inc. Common Stock | $794,240 | 1.68% | 8,000 | Up ×1 | |||
| Unknown issuer (CUSIP: 84615Q103) | $768,870 | 1.62% | 4,500 | Up ×1 | |||
| VST Vistra Corp. Common Stock | $396,575 | 0.84% | 2,500 | ||||
| VIXY | $387,521 | 0.82% | 18,202 | Up ×1 | |||
| AMZN Amazon.com, Inc. - Common Stock | $297,925 | 0.63% | 1,250 | $-9,692,370 | Down ×1 | ||
| META Meta Platforms, Inc. - Class A Common Stock | $285,588 | 0.60% | 507 | $-12,362,490 | Down ×1 | ||
| No matches | |||||||
Biggest new bets
New positions opened this quarter, largest first.
| Security | Value | Shares | % of portfolio |
|---|---|---|---|
| WDC | $13,732,480 | 21,500 | 28.97% |
| ORCL | $7,556,118 | 51,560 | 15.94% |
| HOOD | $5,151,584 | 51,372 | 10.87% |
| IREN | $2,446,555 | 53,500 | 5.16% |
| STX | $1,341,350 | 1,390 | 2.83% |
| MRVL | $1,038,147 | 3,485 | 2.19% |
| NOW | $794,240 | 8,000 | 1.68% |
| Unknown issuer (CUSIP: 84615Q103) | $768,870 | 4,500 | 1.62% |
| VST | $396,575 | 2,500 | 0.84% |
| VIXY | $387,521 | 18,202 | 0.82% |
Top movers (QoQ)
| Security | Action | Shares Δ | Value Δ |
|---|---|---|---|
| COHR | Trimmed | -33K | -$7.0M |
| MU | Trimmed | -29K | -$6.0M |
| AAOI | Bought more | +16K | +$3.1M |
| LITE | Trimmed | -650 | -$92K |
2 positions hidden (data completeness check)
Exited positions
Includes corporate events (mergers, delistings) — not all exits are sells
Closed positions reflect 13F reporting changes; for index managers these are often mechanical (delisting, M&A, index rebalancing), not active decisions.
| Security | Quarter | Shares before | Value before | Price since exit |
|---|---|---|---|---|
| CLS | June 30, 2025 | 508,524 | $40,076,776 | 94.3% |
| APP | March 31, 2025 | 114,081 | $36,942,850 | 13.5% |
| COHR | March 31, 2025 | 297,185 | $28,152,335 | 363.7% |
| ORCL | June 30, 2025 | 172,500 | $24,117,225 | -33.0% |
| MTZ | March 31, 2025 | 173,814 | $23,663,038 | 134.6% |
| CEG | June 30, 2025 | 113,062 | $22,796,691 | -15.5% |
| VST | June 30, 2025 | 189,716 | $22,280,247 | -28.2% |
| RDDT | June 30, 2025 | 204,007 | $21,400,334 | 1.8% |
| AMZN | March 31, 2025 | 87,500 | $19,196,625 | 35.5% |
| CVNA | March 31, 2025 | 86,545 | $17,599,791 | -66.0% |
| CAR | March 31, 2025 | 200,876 | $16,192,614 | 91.9% |
| TTD | March 31, 2025 | 131,907 | $15,503,030 | -75.8% |
| TSLA | March 31, 2025 | 35,426 | $14,306,436 | 34.6% |
| BE | March 31, 2026 | 156,125 | $13,565,701 | 52.1% |
| NFLX | March 31, 2026 | 140,000 | $13,126,400 | -17.2% |
| HOOD | March 31, 2026 | 110,443 | $12,491,103 | 53.4% |
| ADBE | March 31, 2025 | 26,290 | $11,690,637 | -28.8% |
| TSLA | Sept. 30, 2025 | 34,200 | $10,863,972 | -21.6% |
| DUOL | March 31, 2025 | 30,036 | $9,738,572 | -53.3% |
| CNK | March 31, 2025 | 313,990 | $9,727,410 | 48.0% |
| TSLA | March 31, 2026 | 21,000 | $9,444,120 | -6.2% |
| NVDA | June 30, 2026 | 54,000 | $9,417,600 | 8.4% |
| WIX | June 30, 2025 | 55,802 | $9,116,931 | -49.3% |
| AVGO | June 30, 2025 | 53,500 | $8,957,505 | 35.2% |
| META | March 31, 2025 | 15,000 | $8,782,650 | -4.8% |
| DKNG | March 31, 2025 | 228,435 | $8,497,782 | -24.8% |
| U | Dec. 31, 2025 | 205,882 | $8,243,515 | 4.4% |
| CLS | March 31, 2026 | 27,250 | $8,055,373 | 7.7% |
| MNDY | March 31, 2025 | 30,109 | $7,088,863 | -63.6% |
| CIEN | March 31, 2026 | 30,000 | $7,016,100 | 2.9% |
| BE | March 31, 2025 | 308,490 | $6,851,563 | 948.1% |
| CORZ | Sept. 30, 2025 | 396,658 | $6,770,952 | 6.3% |
| AMZN | Dec. 31, 2025 | 28,000 | $6,147,960 | 11.7% |
| ETSY | Dec. 31, 2025 | 90,000 | $5,975,100 | 45.6% |
| PLTR | March 31, 2026 | 29,000 | $5,154,750 | 18.3% |
| CLBRU | March 31, 2025 | 415,350 | $5,129,573 | No longer tracked |
| ESTC | March 31, 2025 | 50,000 | $4,954,000 | -5.5% |
| NBIS | March 31, 2026 | 51,800 | $4,335,919 | 120.1% |
| DELL | Sept. 30, 2025 | 32,500 | $3,984,500 | 209.8% |
| PLTR | Sept. 30, 2025 | 27,500 | $3,748,800 | -5.2% |
| GEV | March 31, 2025 | 10,000 | $3,289,300 | 217.8% |
| CRWV | March 31, 2026 | 45,000 | $3,222,450 | 16.3% |
| MDB | March 31, 2025 | 13,575 | $3,160,396 | 138.6% |
| HOOD | June 30, 2025 | 64,971 | $2,704,093 | 13.5% |
| OKLO | June 30, 2025 | 123,830 | $2,678,443 | -23.3% |
| RDDT | Dec. 31, 2025 | 10,850 | $2,495,392 | -33.3% |
| RBLX | March 31, 2026 | 29,430 | $2,384,713 | -31.2% |
| WDC | March 31, 2025 | 38,424 | $2,291,223 | 1063.7% |
| CEG | June 30, 2026 | 7,500 | $2,094,375 | 9.8% |
| ORCL | Dec. 31, 2025 | 7,000 | $1,968,680 | -24.9% |
| ANET | March 31, 2025 | 17,633 | $1,948,975 | 143.1% |
| GTLB | March 31, 2025 | 34,210 | $1,927,734 | -13.0% |
| SHOP | Dec. 31, 2025 | 12,500 | $1,857,625 | -9.4% |
| NBIS | March 31, 2025 | 60,125 | $1,665,463 | 981.7% |
| TLN | Dec. 31, 2025 | 3,784 | $1,609,638 | -15.8% |
| VST | Dec. 31, 2025 | 8,000 | $1,567,360 | -13.7% |
| SMR | March 31, 2026 | 104,738 | $1,484,137 | -14.2% |
| HTZ | March 31, 2025 | 395,790 | $1,448,591 | -45.4% |
| SHOP | March 31, 2025 | 12,500 | $1,329,125 | 52.7% |
| SPHR | June 30, 2025 | 35,856 | $1,173,208 | 272.9% |
| CORZ | June 30, 2026 | 65,273 | $976,484 | -25.5% |
| CVNA | Dec. 31, 2025 | 2,500 | $943,100 | -83.2% |
| INTC | June 30, 2026 | 20,835 | $919,449 | -34.2% |
| CAR | Sept. 30, 2025 | 4,635 | $783,547 | -9.3% |
| HUT | March 31, 2026 | 15,294 | $702,606 | 88.2% |
| RBLX | March 31, 2025 | 12,015 | $695,188 | -33.3% |
| WBD | June 30, 2025 | 62,564 | $671,312 | 148.0% |
| DKNG | March 31, 2026 | 18,684 | $643,851 | 15.6% |
| MDB | Dec. 31, 2025 | 2,018 | $626,347 | -0.3% |
| RH | Dec. 31, 2025 | 3,000 | $609,480 | -12.9% |
| DLR | Sept. 30, 2025 | 2,900 | $505,557 | 13.6% |
| EQIX | Sept. 30, 2025 | 635 | $505,123 | 39.9% |
| CRDO | June 30, 2025 | 10,699 | $429,672 | 150.0% |
| AVGO | Dec. 31, 2025 | 1,200 | $395,892 | 7.7% |
| PINS | March 31, 2025 | 13,462 | $390,398 | -25.6% |
| SPOT | Sept. 30, 2025 | 460 | $352,976 | -24.5% |
| CRWV | Sept. 30, 2025 | 2,000 | $326,120 | -34.2% |
| MU | Sept. 30, 2025 | 2,400 | $295,800 | 488.5% |
| TSM | Sept. 30, 2025 | 900 | $203,841 | 50.5% |
| AAOI | June 30, 2025 | 10,400 | $159,640 | 410.0% |