JAT Capital Mgmt LP

Portfolio Overview

JAT Capital Mgmt LP disclosed 16 positions worth $47.4M in its Form 13F-HR for Q2 2026, led by $WDC (WESTERN DIGITAL CORP) at 29.0% of the equity portfolio, followed by $ORCL and $MU. During the quarter the fund opened 10 new positions and exited 4 — including a new stake in $WDC and a full exit from $NVDA. The portfolio is most concentrated in Technology (81.7% of disclosed assets). All figures are sourced directly from JAT Capital Mgmt LP’s Form 13F-HR filing with the SEC under CIK 1834438.

• 

  WESTERN DIGITAL CORP

  $WDC

  80.5#24

  Quality

  $13.7M21,500 sh
• 

  ORACLE CORP

  $ORCL

  68.2#315

  Quality

  $7.6M51,560 sh
• 

  MICRON TECHNOLOGY INC

  $MU

  86.1#4

  Quality

  $5.3M4,587 sh
• 

  Robinhood Markets, Inc.

  $HOOD

  81.9

  Quality

  $5.2M51,372 sh
• 

  APPLIED OPTOELECTRONICS, INC.

  $AAOI

  39.8

  Quality

  $3.9M26,500 sh
• 

  IREN Ltd

  $IREN

  46.3

  Quality

  $2.4M53,500 sh
• 

  Lumentum Holdings Inc.

  $LITE

  44.2

  Quality

  $2.0M2,350 sh
• 

  COHERENT CORP.

  $COHR

  58.3

  Quality

  $2.0M5,000 sh
• 

  Seagate Technology Holdings plc

  $STX

  —

  Quality

  $1.3M1,390 sh
• 

  Marvell Technology, Inc.

  $MRVL

  76.3

  Quality

  $1.0M3,485 sh

Company	Quality	Value	Shares
WESTERN DIGITAL CORP$WDC	80.5#24	$13.7M	21,500
ORACLE CORP$ORCL	68.2#315	$7.6M	51,560
MICRON TECHNOLOGY INC$MU	86.1#4	$5.3M	4,587
Robinhood Markets, Inc.$HOOD	81.9	$5.2M	51,372
APPLIED OPTOELECTRONICS, INC.$AAOI	39.8	$3.9M	26,500
IREN Ltd$IREN	46.3	$2.4M	53,500
Lumentum Holdings Inc.$LITE	44.2	$2.0M	2,350
COHERENT CORP.$COHR	58.3	$2.0M	5,000
Seagate Technology Holdings plc$STX	—	$1.3M	1,390
Marvell Technology, Inc.$MRVL	76.3	$1.0M	3,485

Showing top 10 of 16 holdings.

Full Holdings — JAT Capital Mgmt LP (Q2 2026)

All 16 disclosed positions from the latest Form 13F-HR, with quarter-over-quarter share changes and 13F Pro quality scores. Sourced from SEC EDGAR.

#	Ticker	Company	Value	Weight	QoQ	Quality
1	$WDC	WESTERN DIGITAL CORP	$13.7M	29.0%	NEW	80.5
2	$ORCL	ORACLE CORP	$7.6M	15.9%	NEW	68.2
3	$MU	MICRON TECHNOLOGY INC	$5.3M	11.2%	-86%	86.1
4	$HOOD	Robinhood Markets, Inc.	$5.2M	10.9%	NEW	81.9
5	$AAOI	APPLIED OPTOELECTRONICS, INC.	$3.9M	8.3%	+165%	39.8
6	$IREN	IREN Ltd	$2.4M	5.2%	NEW	46.3
7	$LITE	Lumentum Holdings Inc.	$2.0M	4.3%	-22%	44.2
8	$COHR	COHERENT CORP.	$2.0M	4.2%	-87%	58.3
9	$STX	Seagate Technology Holdings plc	$1.3M	2.8%	NEW	—
10	$MRVL	Marvell Technology, Inc.	$1.0M	2.2%	NEW	76.3
11	$NOW	ServiceNow, Inc.	$794,240	1.7%	NEW	72.8
12	$SPCX	SPACE EXPLORATION TECHNOLOGIES CORP	$768,870	1.6%	NEW	—
13	$VST	Vistra Corp.	$396,575	0.8%	NEW	71.6
14	—	PROSHARES TR II - VIX SHT TERM FUT	$387,521	0.8%	NEW	—
15	$AMZN	AMAZON COM INC	$297,925	0.6%	-97%	68.4
16	$META	Meta Platforms, Inc.	$285,588	0.6%	-98%	79.6