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Westfield Capital Management

Westfield Capital Management Portfolio holdings

AUM $30.6B
1-Year Est. Return 61.81%
This Fund
S&P 500
This Quarter Est. Return
+32.34%
1 Year Est. Return
+61.81%
3 Year Est. Return
+195.36%
5 Year Est. Return
+240.54%
10 Year Est. Return
+1,285%
AUM
$30.6B
AUM Growth
+$6.78B
Cap. Flow
+$1.18B
Cap. Flow %
3.85%
Top 10 Hldgs %
29.23%
Holding
318
New
68
Increased
97
Reduced
105
Closed
40

Top Sells

Rank Stock Value
1
FIX icon
Comfort Systems
FIX
+$482M
2
AMZN icon
Amazon
AMZN
+$356M
3
MRVL icon
Marvell Technology
MRVL
+$333M
4
BE icon
Bloom Energy
BE
+$303M
5
VRT icon
Vertiv
VRT
+$275M

Sector Composition

Rank Sector Weight
1 Technology 33.44%
2 Industrials 24.01%
3 Healthcare 16.38%
4 Financials 7.6%
5 Consumer Discretionary 7.21%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow
JBHT icon
126
JB Hunt Transport Services
JBHT
$25.7B
$71.1M 0.23%
245,804
+17,227
+8% +$4.42M
VST icon
127
Vistra
VST
$50.1B
$70.7M 0.23%
445,739
-49,136
-10% -$7.62M
GKOS icon
128
Glaukos
GKOS
$10.5B
$67.6M 0.22%
483,411
+1,192
+0.2% +$151K
MTSI icon
129
MACOM Technology Solutions
MTSI
$20.5B
$66.9M 0.22%
175,952
+43,495
+33% +$14.4M
TER icon
130
Teradyne
TER
$55.8B
$66M 0.22%
+136,491
New +$51.5M
SAIA icon
131
Saia
SAIA
$9.52B
$64.7M 0.21%
153,571
-2,029
-1% -$892K
NXPI icon
132
NXP Semiconductors
NXPI
$57.5B
$63.9M 0.21%
227,356
-20,640
-8% -$5.69M
ST icon
133
Sensata Technologies
ST
$6.27B
$63.7M 0.21%
+1,333,853
New +$60.3M
HQY icon
134
HealthEquity
HQY
$7.95B
$63.5M 0.21%
703,313
-9,535
-1% -$808K
BTSG icon
135
BrightSpring Health Services
BTSG
$12B
$62.6M 0.2%
+897,804
New +$49.9M
RLAY icon
136
Relay Therapeutics
RLAY
$4.17B
$62.6M 0.2%
+3,343,496
New +$48.5M
HLI icon
137
Houlihan Lokey
HLI
$9.58B
$62.2M 0.2%
463,415
-80,196
-15% -$11.8M
ENTG icon
138
Entegris
ENTG
$21.2B
$62M 0.2%
344,956
-26,730
-7% -$3.85M
CORZ icon
139
Core Scientific
CORZ
$5.75B
$61.7M 0.2%
2,409,894
+929,881
+63% +$21.9M
RDNT icon
140
RadNet
RDNT
$5.8B
$60.2M 0.2%
975,542
+443,649
+83% +$24.9M
ORKA
141
Oruka Therapeutics
ORKA
$6.13B
$60.1M 0.2%
631,433
+318,303
+102% +$21.2M
CRDO icon
142
Credo Technology Group
CRDO
$32.1B
$59M 0.19%
216,976
-709,243
-77% -$140M
BLDR icon
143
Builders FirstSource
BLDR
$7.08B
$58.7M 0.19%
+656,421
New +$52.4M
LSCC icon
144
Lattice Semiconductor
LSCC
$16.5B
$58.4M 0.19%
381,803
-181,619
-32% -$23.4M
DSGX icon
145
Descartes Systems
DSGX
$6.76B
$57.8M 0.19%
835,437
+33,535
+4% +$2.39M
AVNT icon
146
Avient
AVNT
$3.98B
$57.3M 0.19%
1,549,939
-19,529
-1% -$707K
BRZE icon
147
Braze
BRZE
$3.6B
$56.8M 0.19%
2,617,532
-1,356,374
-34% -$30.2M
FN icon
148
Fabrinet
FN
$14.6B
$54.7M 0.18%
97,376
-187,498
-66% -$121M
LNG icon
149
Cheniere Energy
LNG
$60.3B
$54.6M 0.18%
228,475
-230,569
-50% -$57.4M
PODD icon
150
Insulet
PODD
$10.2B
$53.7M 0.18%
352,717
+351,035
+20,870% +$58.5M

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Westfield Capital Management's Q2 2026 Portfolio in Review

As of Q2 2026, Westfield Capital Management held 318 positions worth $30.6B, up 28% from $23.8B the previous quarter. Its ten largest holdings account for 29% of the portfolio.

Westfield Capital Management deployed $1.18B of net new capital in Q2 2026, opening 68 new positions and adding to 97 existing holdings. Its largest new stake was Carpenter Technology: 314,082 shares worth $194M.

By sector, the portfolio is most concentrated in Technology at 33% of assets, up from 28% a quarter earlier, followed by Industrials and Healthcare.

On the sell side, the largest reduction was Comfort Systems, an estimated $482M trimmed.

  • Westfield Capital Management's largest Q2 2026 buy was Carpenter Technology: 314,082 shares worth $194M.
  • Westfield Capital Management added most to Alphabet (Google) Class A in Q2 2026, an estimated $620M increase.
  • Westfield Capital Management's biggest Q2 2026 reduction was Comfort Systems, cutting an estimated $482M.
  • Westfield Capital Management fully exited Kratos Defense & Security Solutions in Q2 2026, selling an estimated $110M.
  • Westfield Capital Management's ten largest holdings make up 29% of its $30.6B portfolio in Q2 2026.
  • Westfield Capital Management opened 68 new positions and closed 40 in Q2 2026.
  • Westfield Capital Management's portfolio value rose 28% quarter-over-quarter to $30.6B.

Based on Westfield Capital Management's 13F filing for Q2 2026, filed 12 Aug 2026.