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Castleark Management Portfolio holdings

AUM $3.02B
1-Year Est. Return 53.92%
This Fund
S&P 500
This Quarter Est. Return
+5.04%
1 Year Est. Return
+53.92%
3 Year Est. Return
+208.37%
5 Year Est. Return
+342.22%
10 Year Est. Return
+3,246.09%
AUM
$3.02B
AUM Growth
-$384M
Cap. Flow
-$359M
Cap. Flow %
-11.88%
Top 10 Hldgs %
32.19%
Holding
347
New
53
Increased
65
Reduced
101
Closed
55

Top Buys

Rank Stock Value
1
CVX icon
Chevron
CVX
+$24.9M
2
FANG icon
Diamondback Energy
FANG
+$24.6M
3
BKR icon
Baker Hughes
BKR
+$19.3M
4
VCLT icon
Vanguard Long-Term Corporate Bond ETF
VCLT
+$16.1M
5
CF icon
CF Industries
CF
+$13.2M

Top Sells

Rank Stock Value
1
AMZN icon
Amazon
AMZN
+$49.8M
2
MSFT icon
Microsoft
MSFT
+$44.1M
3
BX icon
Blackstone
BX
+$37.7M
4
EFA icon
iShares MSCI EAFE ETF
EFA
+$33.4M
5
NVDA icon
NVIDIA
NVDA
+$27.5M

Sector Composition

Rank Sector Weight
1 Technology 31.73%
2 Industrials 9.89%
3 Consumer Discretionary 9.68%
4 Healthcare 9.21%
5 Energy 8.12%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
MCO icon
101
Moody's
MCO
$85.7B
$7.37M 0.24%
+16,900
New +$7.99M
QXO
102
QXO Inc
QXO
$14.5B
$7.3M 0.24%
375,807
+92,280
+33% +$2.11M
KNX icon
103
Knight Transportation
KNX
$12.5B
$7.26M 0.24%
+126,030
New +$7.23M
TOL icon
104
Toll Brothers
TOL
$13.8B
$7.01M 0.23%
51,403
+10,310
+25% +$1.51M
KLIC icon
105
Kulicke & Soffa
KLIC
$5.68B
$6.99M 0.23%
+106,380
New +$6.76M
GLD icon
106
SPDR Gold Trust
GLD
$132B
$6.99M 0.23%
16,235
-200
-1% -$89.6K
IPGP icon
107
IPG Photonics
IPGP
$4.36B
$6.93M 0.23%
60,456
+21,766
+56% +$2.36M
ARQT icon
108
Arcutis Biotherapeutics
ARQT
$3.53B
$6.91M 0.23%
293,460
-15,970
-5% -$408K
PATK icon
109
Patrick Industries
PATK
$2.83B
$6.91M 0.23%
62,180
+8,340
+15% +$1.03M
FAST icon
110
Fastenal
FAST
$51.6B
$6.9M 0.23%
148,690
+141,770
+2,049% +$6.36M
PAY icon
111
Paymentus
PAY
$3.73B
$6.88M 0.23%
+270,770
New +$7.12M
TXRH icon
112
Texas Roadhouse
TXRH
$12.8B
$6.84M 0.23%
41,410
+14,490
+54% +$2.6M
LNG icon
113
Cheniere Energy
LNG
$55B
$6.84M 0.23%
24,096
-4,330
-15% -$1,000K
CRL icon
114
Charles River Laboratories
CRL
$10.6B
$6.8M 0.23%
39,435
+7,190
+22% +$1.33M
ATMU icon
115
Atmus Filtration Technologies
ATMU
$4.18B
$6.78M 0.22%
+119,350
New +$7.05M
EXE
116
Expand Energy Corp
EXE
$21.2B
$6.72M 0.22%
61,230
+3,030
+5% +$324K
ODFL icon
117
Old Dominion Freight Line
ODFL
$48.8B
$6.63M 0.22%
33,910
-61,820
-65% -$11.5M
AIR icon
118
AAR Corp
AIR
$5.62B
$6.6M 0.22%
60,264
-26,590
-31% -$2.86M
SSD icon
119
Simpson Manufacturing
SSD
$7.63B
$6.59M 0.22%
38,382
-2,050
-5% -$378K
PTCT icon
120
PTC Therapeutics
PTCT
$6.51B
$6.26M 0.21%
91,880
-4,980
-5% -$353K
UCTT
121
Ultra Clean Holdings
UCTT
$4.71B
$6.23M 0.21%
+100,130
New +$5.13M
SITM icon
122
SiTime
SITM
$17.7B
$6.14M 0.2%
17,784
-15,770
-47% -$5.8M
LINC icon
123
Lincoln Educational Services
LINC
$1.3B
$6.13M 0.2%
+150,610
New +$4.74M
GWW icon
124
W.W. Grainger
GWW
$64.3B
$6.12M 0.2%
+5,610
New +$6.13M
WH icon
125
Wyndham Hotels & Resorts
WH
$5.67B
$6.11M 0.2%
+75,200
New +$5.89M
3 4
5
6 7

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Castleark Management's Q1 2026 Portfolio in Review

As of Q1 2026, Castleark Management held 347 positions worth $3.02B, down 11% from $3.41B the previous quarter. Its ten largest holdings account for 32% of the portfolio.

Castleark Management withdrew a net $359M in Q1 2026, closing 55 positions and reducing 101 holdings. Its most notable exit was Blackstone, an estimated $37.7M position sold in full.

By sector, the portfolio is most concentrated in Technology at 32% of assets, down from 34% a quarter earlier, followed by Industrials and Consumer Discretionary.

Against the trend, Castleark Management opened a new position in Chevron worth $28.3M.

  • Castleark Management's largest Q1 2026 buy was Chevron: 136,550 shares worth $28.3M.
  • Castleark Management added most to Baker Hughes in Q1 2026, an estimated $19.3M increase.
  • Castleark Management's biggest Q1 2026 reduction was Amazon, cutting an estimated $49.8M.
  • Castleark Management fully exited Blackstone in Q1 2026, selling an estimated $37.7M.
  • Castleark Management's ten largest holdings make up 32% of its $3.02B portfolio in Q1 2026.
  • Castleark Management opened 53 new positions and closed 55 in Q1 2026.
  • Castleark Management's portfolio value fell 11% quarter-over-quarter to $3.02B.

Based on Castleark Management's 13F filing for Q1 2026, filed 15 May 2026.