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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
(+28%)
Cap. Flow
+$1.18B
Cap. Flow
% of AUM
3.85%
Top 10 Holdings %
Top 10 Hldgs %
29.23%
Holding
318
New
68
Increased
97
Reduced
105
Closed
40
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Alphabet (Google) Class A
GOOGL
|
+$620M |
| 2 |
NVIDIA
NVDA
|
+$362M |
| 3 |
Snowflake
SNOW
|
+$187M |
| 4 |
AXON
Axon Enterprise
AXON
|
+$179M |
| 5 |
Gilead Sciences
GILD
|
+$166M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Comfort Systems
FIX
|
+$482M |
| 2 |
Amazon
AMZN
|
+$356M |
| 3 |
Marvell Technology
MRVL
|
+$333M |
| 4 |
Bloom Energy
BE
|
+$303M |
| 5 |
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 | |
|---|---|---|---|---|---|---|
151
Roblox
RBLX
$30.9B
| $53.6M | 0.18% |
+985,802
| New | +$49M |
|
152
argenx
ARGX
$64.6B
| $53M | 0.17% |
+57,082
| New | +$47.1M |
|
153
NewAmsterdam Pharma
NAMS
$3.04B
| $52.1M | 0.17% |
1,536,472
-666,441
| -30% | -$22M |
|
154
Jabil
JBL
$32.5B
| $52M | 0.17% |
134,783
-214,426
| -61% | -$74.1M |
|
|
TLN
155
Talen Energy Corp
TLN
$15.2B
| $51.9M | 0.17% |
135,079
+3,618
| +3% | +$1.33M |
|
|
HAPN
156
Happen Inc
HAPN
$2.05B
| $51.9M | 0.17% |
2,500,134
+382,591
| +18% | +$6.51M |
|
157
Rambus
RMBS
$9.27B
| $51.2M | 0.17% |
385,811
+371,375
| +2,573% | +$48.3M |
|
158
Flex
FLEX
$40.5B
| $50.9M | 0.17% |
+314,008
| New | +$38.1M |
|
159
Spotify
SPOT
$112B
| $50.6M | 0.17% |
+110,179
| New | +$52.5M |
|
160
Madrigal Pharmaceuticals
MDGL
$12.5B
| $50.4M | 0.16% |
93,931
-882
| -0.9% | -$452K |
|
161
Analog Devices
ADI
$176B
| $50.2M | 0.16% |
+126,445
| New | +$50M |
|
162
MongoDB
MDB
$29.7B
| $50.1M | 0.16% |
149,255
-15,626
| -9% | -$4.69M |
|
163
Nasdaq
NDAQ
$54.2B
| $50.1M | 0.16% |
+635,713
| New | +$55.8M |
|
164
Hilton Worldwide
HLT
$70B
| $49.5M | 0.16% |
149,936
-307,489
| -67% | -$101M |
|
165
Calix
CALX
$2.26B
| $49.4M | 0.16% |
1,324,534
-221,567
| -14% | -$9.3M |
|
166
Seagate
STX
$192B
| $49M | 0.16% |
+50,734
| New | +$38.7M |
|
167
Keysight
KEYS
$55.7B
| $47.2M | 0.15% |
+134,908
| New | +$46M |
|
168
Corning
GLW
$133B
| $47.1M | 0.15% |
+184,428
| New | +$33.6M |
|
169
Lumentum
LITE
$79B
| $46.2M | 0.15% |
+53,807
| New | +$48M |
|
170
Dorman Products
DORM
$3.9B
| $45.1M | 0.15% |
330,809
-130,473
| -28% | -$15.5M |
|
171
Coeur Mining
CDE
$21.8B
| $44.9M | 0.15% |
2,748,441
+9,595
| +0.4% | +$175K |
|
172
Celcuity
CELC
$4.68B
| $43.7M | 0.14% |
+417,816
| New | +$48.2M |
|
173
Target Hospitality
TH
$1.94B
| $42.8M | 0.14% |
+2,103,813
| New | +$35.2M |
|
174
Indivior Pharmaceuticals
INDV
$4.12B
| $42.7M | 0.14% |
+1,041,191
| New | +$37.8M |
|
|
MRX
175
Marex Group Limited Ordinary Shares
MRX
$5.63B
| $42M | 0.14% |
+688,665
| New | +$37.9M |
|
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KAS
KK
FAM
GMC
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.