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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
UEC icon
201
Uranium Energy
UEC
$5.71B
$29.9M 0.1%
2,800,745
+1,232,973
+79% +$16.5M
INOD icon
202
Innodata
INOD
$1.91B
$28.3M 0.09%
+375,091
New +$27.5M
SYNA icon
203
Synaptics
SYNA
$3.87B
$28.2M 0.09%
+226,677
New +$25.6M
RHP icon
204
Ryman Hospitality Properties
RHP
$8.52B
$28.1M 0.09%
+218,405
New +$24.2M
RIOT icon
205
Riot Platforms
RIOT
$8.18B
$27.8M 0.09%
1,013,804
-2,486,076
-71% -$56M
FAST icon
206
Fastenal
FAST
$56.9B
$27.5M 0.09%
572,498
-65,836
-10% -$2.99M
MIAX
207
Miami International Holdings
MIAX
$4.21B
$26M 0.09%
+700,741
New +$31.3M
TSLA icon
208
Tesla
TSLA
$1.4T
$21.2M 0.07%
50,411
-265,691
-84% -$106M
NFLX icon
209
Netflix
NFLX
$326B
$20.8M 0.07%
290,833
-1,679,161
-85% -$148M
GOOG icon
210
Alphabet (Google) Class C
GOOG
$4.1T
$20.4M 0.07%
57,617
+7,130
+14% +$2.55M
MLI icon
211
Mueller Industries
MLI
$14.1B
$15.5M 0.05%
251,582
-536
-0.2% -$35.1K
BAC icon
212
Bank of America
BAC
$438B
$13.7M 0.04%
240,187
-826,698
-77% -$44M
WMB icon
213
Williams Companies
WMB
$90.7B
$13.4M 0.04%
180,918
-526
-0.3% -$38.7K
CMI icon
214
Cummins
CMI
$77.2B
$11M 0.04%
15,389
-26
-0.2% -$17.1K
KO icon
215
Coca-Cola
KO
$379B
$10.9M 0.04%
133,579
-288
-0.2% -$22.7K
SMFG icon
216
Sumitomo Mitsui Financial
SMFG
$173B
$10.8M 0.04%
456,612
-972
-0.2% -$21.6K
CIEN icon
217
Ciena
CIEN
$45.5B
$10.3M 0.03%
20,950
-10,800
-34% -$5.51M
MUFG icon
218
Mitsubishi UFJ Financial
MUFG
$271B
$10.2M 0.03%
514,757
-1,297
-0.3% -$24.4K
WMT icon
219
Walmart Inc
WMT
$850B
$10M 0.03%
88,491
+16,930
+24% +$2.1M
JNJ icon
220
Johnson & Johnson
JNJ
$663B
$9.09M 0.03%
35,772
-140
-0.4% -$32.6K
QNT
221
Quantinuum Inc
QNT
$1.83B
$7.88M 0.03%
+96,396
New +$6.2M
TT icon
222
Trane Technologies
TT
$98.5B
$7.77M 0.03%
15,820
-21
-0.1% -$9.82K
NEE icon
223
NextEra Energy
NEE
$174B
$7.63M 0.02%
86,920
-331
-0.4% -$29.9K
TJX icon
224
TJX Companies
TJX
$145B
$7.36M 0.02%
48,579
-42
-0.1% -$6.64K
GS icon
225
Goldman Sachs
GS
$302B
$7.14M 0.02%
7,062
-12
-0.2% -$11.7K

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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.