JAT Capital Mgmt
JAT Capital Mgmt reported 16 stocks worth $47.4M in its 13F filing for Q2 2026, filed Aug 14, 2026. Its largest holdings are WDC (29.0%), ORCL (15.9%) and MU (11.2%). Compared with Q1 2026, the fund opened new positions in WDC, ORCL and HOOD, added to AAOI, trimmed MU, LITE and COHR and sold out of NVDA, CEG and CORZ.
Holdings
| # | Stock | Value | Weight | Shares | Change | Shares, 8 qtrs | Held |
|---|---|---|---|---|---|---|---|
| 1 |  WDC Western Digital Corp | $13.7M | 29.0% | 22K | New position | 3 of 8 | |
| 2 |  ORCL Oracle Corp | $7.6M | 15.9% | 52K | New position | 4 of 8 | |
| 3 |  MU Micron Technology Inc | $5.3M | 11.2% | 4,587 | −29K (−86%) | 4 of 8 | |
| 4 |  HOOD Robinhood Mkts Inc | $5.2M | 10.9% | 51K | New position | 4 of 8 | |
| 5 |  AAOI Applied Optoelectronics Inc | $3.9M | 8.3% | 27K | +16K (+165%) | 5 of 8 | |
| 6 |  IREN Iren Ltd F | $2.4M | 5.2% | 54K | New position | 1 of 8 | |
| 7 |  LITE Lumentum Hldgs Inc | $2M | 4.3% | 2,350 | −650 (−22%) | 2 of 8 | |
| 8 |  COHR Coherent Corp | $2M | 4.2% | 5,000 | −33K (−87%) | 3 of 8 | |
| 9 |  STX Seagate Technology Hldngs PL | $1.3M | 2.8% | 1,390 | New position | 1 of 8 | |
| 10 |  MRVL Marvell Technology Inc | $1M | 2.2% | 3,485 | New position | 1 of 8 |
Positions at Jun 30, 2026, as reported. Change is against the fund's Q1 2026 filing; weight is the share of the fund's reported stocks.
Sold out
held in Q1 2026, gone in Q2 2026
Reported value
last 8 quartersThe value of the US stocks the fund reported, at quarter end prices. It moves with the market as well as with buying and selling.
Filings for Q2 2026
straight from the SEC| Filed | Form | Quarter | |
|---|---|---|---|
| Aug 14, 2026 | 13F-HR | Q2 2026 | SEC filing ↗ |
Other superinvestors
All hedge fund holdings →JAT Capital Mgmt 13F FAQ
What does JAT Capital Mgmt own?
JAT Capital Mgmt reported 16 stocks worth $47.4M in its 13F filing for Q2 2026, filed Aug 14, 2026. Its largest holdings are WDC (29.0%), ORCL (15.9%) and MU (11.2%). The table above lists every position in the filing (the top 10 without an account).
What did JAT Capital Mgmt buy and sell in Q2 2026?
Compared with Q1 2026: 10 new positions, 1 added to, 5 trimmed and 4 sold out. New positions include WDC, ORCL and HOOD. It sold all of NVDA, CEG and CORZ.
When will JAT Capital Mgmt file its next 13F?
Holdings as of Sep 30, 2026 are due by Nov 16, 2026. The filing appears on this page within minutes of reaching the SEC.
How much is JAT Capital Mgmt's portfolio worth?
The Q2 2026 filing reports $47.4M in US stocks. That leaves out cash, bonds, short positions and most foreign holdings, so the fund's total assets are usually larger.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Holdings come from the fund's SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. The fund may have changed its positions since. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.