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William Blair Investment Management Portfolio holdings
AUM
$33.3B
1-Year Est. Return
44.76%
This Fund
S&P 500
This Quarter
Est. Return
+17.18%
1 Year Est. Return
+44.76%
3 Year Est. Return
+140.8%
5 Year Est. Return
+166.51%
10 Year Est. Return
+978.6%
AUM
$37.7B
AUM Growth
+$2.06B
(+5.8%)
Cap. Flow
-$2.27B
Cap. Flow
% of AUM
-6.03%
Top 10 Holdings %
Top 10 Hldgs %
30.35%
Holding
461
New
38
Increased
117
Reduced
257
Closed
44
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
BWX Technologies
BWXT
|
+$149M |
| 2 |
Maplebear
CART
|
+$145M |
| 3 |
BellRing Brands
BRBR
|
+$144M |
| 4 |
Oracle
ORCL
|
+$139M |
| 5 |
P
Everpure Inc
P
|
+$130M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Yum China
YUMC
|
+$217M |
| 2 |
Palo Alto Networks
PANW
|
+$192M |
| 3 |
e.l.f. Beauty
ELF
|
+$177M |
| 4 |
Stride
LRN
|
+$176M |
| 5 |
GTLS
Chart Industries
GTLS
|
+$153M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 35.89% |
| 2 | Consumer Discretionary | 15.09% |
| 3 | Financials | 13.13% |
| 4 | Healthcare | 10.3% |
| 5 | Industrials | 9.46% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
151
Texas Capital Bancshares
TCBI
$4.36B
| $44M | 0.12% |
554,368
-45,804
| -8% | -$3.28M |
|
|
TMHC
152
DELISTED
Taylor Morrison
TMHC
| $42.4M | 0.11% |
689,515
-57,191
| -8% | -$3.32M |
|
153
CareTrust REIT
CTRE
$9.14B
| $42.3M | 0.11% |
1,383,975
-113,782
| -8% | -$3.28M |
|
154
John Wiley & Sons Class A
WLY
$2.52B
| $41.6M | 0.11% |
931,752
-75,066
| -7% | -$3.16M |
|
155
Banner Corp
BANR
$2.47B
| $40.1M | 0.11% |
625,382
+2,741
| +0.4% | +$170K |
|
156
Rush Street Interactive
RSI
$2.91B
| $39.9M | 0.11% |
2,675,601
+121,992
| +5% | +$1.51M |
|
157
Equity Lifestyle Properties
ELS
$12.4B
| $39.2M | 0.1% |
635,161
+3,561
| +0.6% | +$227K |
|
158
Weatherford International
WFRD
$6.77B
| $37.6M | 0.1% |
747,962
+21,558
| +3% | +$1M |
|
|
BCPC
159
Balchem Corp
BCPC
$5.71B
| $37.6M | 0.1% |
236,025
-50,108
| -18% | -$8.12M |
|
160
Coherent
COHR
$64.3B
| $37.4M | 0.1% |
+419,164
| New | +$30.2M |
|
161
Establishment Labs
ESTA
$2.21B
| $37M | 0.1% |
865,244
+17,855
| +2% | +$623K |
|
162
Selective Insurance
SIGI
$5.6B
| $36.3M | 0.1% |
418,673
+127,012
| +44% | +$11.1M |
|
163
Infosys
INFY
$51B
| $36.2M | 0.1% |
1,953,985
+10,000
| +0.5% | +$179K |
|
164
Healthcare Realty
HR
$6.56B
| $36.1M | 0.1% |
2,278,809
+14,015
| +0.6% | +$213K |
|
165
Antero Resources
AR
$11.6B
| $36M | 0.1% |
892,925
-66,126
| -7% | -$2.5M |
|
166
Seacoast Banking Corp of Florida
SBCF
$3.42B
| $35.8M | 0.1% |
1,296,936
-104,313
| -7% | -$2.58M |
|
167
Hancock Whitney
HWC
$6.28B
| $35.7M | 0.09% |
622,764
-50,333
| -7% | -$2.68M |
|
168
Sportradar
SRAD
$3.93B
| $35.7M | 0.09% |
1,272,792
-220,120
| -15% | -$5.23M |
|
169
East-West Bancorp
EWBC
$18.2B
| $35.7M | 0.09% |
353,670
-69,303
| -16% | -$6.14M |
|
170
United States Lime & Minerals
USLM
$3.46B
| $35.7M | 0.09% |
357,690
+70,457
| +25% | +$6.89M |
|
171
Revolve Group
RVLV
$1.69B
| $35.6M | 0.09% |
1,775,735
+790,205
| +80% | +$16M |
|
172
Walmart Inc
WMT
$901B
| $35.4M | 0.09% |
362,082
-212,542
| -37% | -$20.3M |
|
173
JFrog
FROG
$10.4B
| $34.7M | 0.09% |
790,759
-121,500
| -13% | -$4.62M |
|
|
JBTM
174
JBT Marel
JBTM
$6.32B
| $34.6M | 0.09% |
288,096
+1,247
| +0.4% | +$139K |
|
175
ESCO Technologies
ESE
$7.65B
| $34.5M | 0.09% |
179,882
-13,831
| -7% | -$2.36M |
|
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William Blair Investment Management's Q2 2025 Portfolio in Review
As of Q2 2025, William Blair Investment Management held 461 positions worth $37.7B, up 5.8% from $35.6B the previous quarter. Its ten largest holdings account for 30% of the portfolio.
William Blair Investment Management withdrew a net $2.27B in Q2 2025, closing 44 positions and reducing 257 holdings. Its most notable exit was The AZEK Co, an estimated $123M position sold in full.
By sector, the portfolio is most concentrated in Technology at 36% of assets, up from 33% a quarter earlier, followed by Consumer Discretionary and Financials.
Against the trend, William Blair Investment Management opened a new position in Maplebear worth $151M.
- William Blair Investment Management's largest Q2 2025 buy was Maplebear: 3,345,792 shares worth $151M.
- William Blair Investment Management added most to BWX Technologies in Q2 2025, an estimated $149M increase.
- William Blair Investment Management's biggest Q2 2025 reduction was Yum China, cutting an estimated $217M.
- William Blair Investment Management fully exited The AZEK Co in Q2 2025, selling an estimated $123M.
- William Blair Investment Management's ten largest holdings make up 30% of its $37.7B portfolio in Q2 2025.
- William Blair Investment Management opened 38 new positions and closed 44 in Q2 2025.
- William Blair Investment Management's portfolio value rose 5.8% quarter-over-quarter to $37.7B.
Based on William Blair Investment Management's 13F filing for Q2 2025, filed 29 Jul 2025.