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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
SUN icon
226
Sunoco
SUN
$14.1B
$939K 0.03%
14,450
– –
RKLB icon
227
Rocket Lab Corp
RKLB
$43.2B
$931K 0.03%
14,490
+4,030
+39% +$304K
QCOM icon
228
Qualcomm
QCOM
$183B
$895K 0.03%
6,950
– –
KGS icon
229
Kodiak Gas Services
KGS
$6.75B
$893K 0.03%
15,320
+4,740
+45% +$230K
TDG icon
230
TransDigm Group
TDG
$67.4B
$892K 0.03%
770
– –
MTZ icon
231
MasTec
MTZ
$27.8B
$865K 0.03%
2,690
-5,780
-68% -$1.56M
IEV icon
232
iShares Europe ETF
IEV
$1.63B
$822K 0.03%
12,100
-2,380
-16% -$168K
NEXT icon
233
NextDecade
NEXT
$1.95B
$814K 0.03%
106,250
– –
AXP icon
234
American Express
AXP
$239B
$809K 0.03%
2,675
– –
GWRE icon
235
Guidewire Software
GWRE
$11.9B
$775K 0.03%
5,180
+80
+2% +$12.2K
PWR icon
236
Quanta Services
PWR
$95.9B
$758K 0.03%
1,380
-5,300
-79% -$2.73M
NFG icon
237
National Fuel Gas
NFG
$7.69B
$720K 0.02%
7,660
+3,530
+85% +$308K
CRK icon
238
Comstock Resources
CRK
$3.9B
$703K 0.02%
33,370
+15,370
+85% +$327K
FLEX icon
239
Flex
FLEX
$46.7B
$693K 0.02%
10,580
+4,870
+85% +$311K
EME icon
240
Emcor
EME
$33.8B
$672K 0.02%
910
-2,530
-74% -$1.84M
ETR icon
241
Entergy
ETR
$52.4B
$671K 0.02%
5,970
+2,750
+85% +$277K
PCAR icon
242
PACCAR
PCAR
$66.4B
$667K 0.02%
5,774
– –
GLNG icon
243
Golar LNG
GLNG
$5.06B
$661K 0.02%
12,210
– –
CRS icon
244
Carpenter Technology
CRS
$29.3B
$631K 0.02%
1,600
-980
-38% -$357K
VST icon
245
Vistra
VST
$54.7B
$625K 0.02%
4,160
-7,870
-65% -$1.27M
NEE icon
246
NextEra Energy
NEE
$183B
$618K 0.02%
6,650
+3,060
+85% +$272K
TLN
247
Talen Energy Corp
TLN
$17.5B
$613K 0.02%
1,920
-6,150
-76% -$2.17M
BKV
248
BKV Corp
BKV
$2.87B
$556K 0.02%
19,480
+8,970
+85% +$260K
ISRG icon
249
Intuitive Surgical
ISRG
$124B
$553K 0.02%
1,200
– –
WES icon
250
Western Midstream Partners
WES
$19.2B
$551K 0.02%
13,390
-22,810
-63% -$943K
8 9
10
11 12

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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.