2026 Q2 Portfolio Activity
In 2026 Q2, JAT Capital Mgmt LP maintained a portfolio of 20 distinct positions. The most significant new addition was WESTERN DIGITAL CORP, now representing 28.97% of the total fund value. They heavily accumulated shares in APPLIED OPTOELECTRONICS INC, increasing the position by 164.6%. The fund also reduced its exposure to META PLATFORMS INC CL A by 97.7%.
Position History
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Total Positions
20
Quarter
2026 Q2
Top Holding
WDC (29.0%)
Top 10 Concentration
93.8%
Turnover Rate
23.4%
Sector HHI
0.18
Items per page:
Showing 1-20 of 20
JAT Capital Mgmt LP Full Holdings List — 2026 Q2
| Stock | History | Sector / Type | Port % | Prev % | Rank / Prev | Conviction | Change | % Change | Influence | Shares | Mkt Value | Avg Cost | Price Held | 1st Owned | Source | Source Date | Date Reported | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
WDC
WESTERN DIGITAL...
|
Technology | 28.97% | — |
#1
Prev: #—
|
9.5 |
—
|
21,500 | — |
NEW
|
21,500 | $13,732,480 | 2023 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
ORCL
ORACLE CORP
|
Technology | 15.94% | — |
#2
Prev: #—
|
9.0 |
—
|
51,560 | — |
NEW
|
51,560 | $7,556,118 | 2024 Q4 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
MU
MICRON TECHNOLO...
|
Technology | 11.17% | 19.07% |
#3
1
Prev: #2
|
5.0 |
—
|
-28,913 | -86.3% |
P
S
|
4,587 | $5,294,728 | 2021 Q4 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
HOOD
ROBINHOOD MKTS ...
|
Financial Services | 10.87% | — |
#4
Prev: #—
|
8.0 |
—
|
51,372 | — |
NEW
|
51,372 | $5,151,584 | 2025 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
AAOI
APPLIED OPTOELE...
|
Technology | 8.28% | 1.43% |
#5
5
Prev: #10
|
6.8 |
—
|
16,486 | 164.6% |
P
S
|
26,500 | $3,926,240 | 2024 Q3 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
IREN
IREN LIMITED
|
Financial Services | 5.16% | — |
#6
Prev: #—
|
5.6 |
—
|
53,500 | — |
NEW
|
53,500 | $2,446,555 | 2024 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
LITE
LUMENTUM HLDGS ...
|
Technology | 4.25% | 3.55% |
#7
1
Prev: #6
|
1.7 |
—
|
-650 | -21.7% |
P
S
|
2,350 | $2,016,441 | 2026 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
COHR
COHERENT CORP
|
Technology | 4.16% | 15.19% |
#8
3
Prev: #5
|
1.7 |
—
|
-32,847 | -86.8% |
P
S
|
5,000 | $1,972,350 | 2024 Q4 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
STX
SEAGATE TECHNOL...
|
Technology | 2.83% | — |
#9
Prev: #—
|
4.6 |
—
|
1,390 | — |
NEW
|
1,390 | $1,341,350 | 2026 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
MRVL
MARVELL TECHNOL...
|
Technology | 2.19% | — |
#10
Prev: #—
|
4.4 |
—
|
3,485 | — |
NEW
|
3,485 | $1,038,147 | 2023 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
NOW
SERVICENOW INC
|
Technology | 1.68% | — |
#11
Prev: #—
|
4.2 |
—
|
8,000 | — |
NEW
|
8,000 | $794,240 | 2023 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
N/A
SPACE EXPLORATI...
|
|
Unknown | 1.62% | — |
#12
Prev: #—
|
4.1 |
—
|
4,500 | — |
NEW
|
4,500 | $768,870 | — | 13F Filing | 2026-06-30 | 2026-08-14 | ||
|
VST
VISTRA CORP
|
Utilities | 0.84% | — |
#13
Prev: #—
|
3.8 |
—
|
2,500 | — |
NEW
|
2,500 | $396,575 | 2024 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
VIXY
PROSHARES TR II
|
ETF | 0.82% | — |
#14
Prev: #—
|
3.8 |
—
|
18,202 | — |
NEW
|
18,202 | $387,521 | 2026 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
AMZN
AMAZON COM INC
|
Consumer Cyclical | 0.63% | 16.84% |
#15
12
Prev: #3
|
0.3 |
—
|
-46,718 | -97.4% |
P
S
|
1,250 | $297,925 | 2022 Q3 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
META
META PLATFORMS ...
|
Communication Services | 0.60% | 21.32% |
#16
15
Prev: #1
|
0.2 |
—
|
-21,600 | -97.7% |
P
S
|
507 | $285,588 | 2021 Q4 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
INTC
INTEL CORP COM
|
Technology | 0.00% | 1.55% |
Sold All 😨
(Was: #9) |
0.0 |
—
|
-20,835 | -100.0% |
CLOSED
|
— | $— | 2026 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
CORZ
CORE SCIENTIFIC...
|
Technology | 0.00% | 1.65% |
Sold All 😨
(Was: #8) |
0.0 |
—
|
-65,273 | -100.0% |
CLOSED
|
— | $— | 2024 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
CEG
CONSTELLATION E...
|
Utilities | 0.00% | 3.53% |
Sold All 😨
(Was: #7) |
0.0 |
—
|
-7,500 | -100.0% |
CLOSED
|
— | $— | 2024 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
NVDA
NVIDIA CORPORAT...
|
Technology | 0.00% | 15.87% |
Sold All 😨
(Was: #4) |
0.0 |
—
|
-54,000 | -100.0% |
CLOSED
|
— | $— | 2022 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 |
Showing 1-20 of 20 holdings