We are live on
!
Find out more
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 | |
|---|---|---|---|---|---|---|
401
AGCO
AGCO
$7.11B
| $293K | ﹤0.01% |
2,842
-45
| -2% | -$4.29K |
|
402
American Financial Group
AFG
$12B
| $292K | ﹤0.01% |
2,311
+322
| +16% | +$40.3K |
|
403
Knight Transportation
KNX
$11.6B
| $272K | ﹤0.01% |
6,155
-96
| -2% | -$4.08K |
|
404
STAG Industrial
STAG
$7.12B
| $266K | ﹤0.01% |
7,338
| – | – |
|
405
STMicroelectronics
STM
$48.4B
| $254K | ﹤0.01% |
+8,355
| New | +$207K |
|
406
SouthState Bank Corp
SSB
$10.7B
| $251K | ﹤0.01% |
+2,723
| New | +$239K |
|
407
Webster Financial
WBS
$12.8B
| $246K | ﹤0.01% |
4,500
| – | – |
|
408
KKR & Co
KKR
$99.5B
| $239K | ﹤0.01% |
1,794
-67
| -4% | -$7.84K |
|
409
Willis Towers Watson
WTW
$31.6B
| $234K | ﹤0.01% |
765
-30
| -4% | -$9.3K |
|
410
State Street
STT
$52.2B
| $234K | ﹤0.01% |
2,199
-82
| -4% | -$7.58K |
|
411
Entergy
ETR
$50.3B
| $232K | ﹤0.01% |
2,789
-104
| -4% | -$8.59K |
|
412
VICI Properties
VICI
$28.7B
| $226K | ﹤0.01% |
6,924
-256
| -4% | -$8.15K |
|
413
Toll Brothers
TOL
$13.9B
| $222K | ﹤0.01% |
1,948
+40
| +2% | +$4.15K |
|
|
PR
414
Permian Resources
PR
$18B
| $212K | ﹤0.01% |
15,575
-7,895
| -34% | -$102K |
|
415
Hewlett Packard
HPE
$77.8B
| $202K | ﹤0.01% |
9,886
-368
| -4% | -$6.17K |
|
416
Huntington Bancshares
HBAN
$36.1B
| $191K | ﹤0.01% |
11,421
-424
| -4% | -$6.4K |
|
417
New Fortress Energy
NFE
$94M
| $186K | ﹤0.01% |
56,090
-14,452,536
| -100% | -$62.8M |
|
418
Ambarella
AMBA
$3.66B
| – | – |
-6,351
| Closed | -$320K |
|
419
Atour Lifestyle Holdings
ATAT
$4.6B
| – | – |
-1,639,155
| Closed | -$46.5M |
|
|
AVNS
420
DELISTED
Avanos Medical
AVNS
| – | – |
-117,239
| Closed | -$1.68M |
|
|
AZEK
421
DELISTED
The AZEK Co
AZEK
| – | – |
-2,518,105
| Closed | -$123M |
|
422
Best Buy
BBY
$17.5B
| – | – |
-7,345
| Closed | -$541K |
|
423
BioLife Solutions
BLFS
$1.71B
| – | – |
-946,623
| Closed | -$21.6M |
|
424
Banco Macro
BMA
$5.1B
| – | – |
-365,830
| Closed | -$27.6M |
|
|
CEPU
425
Central Puerto
CEPU
$1.99B
| – | – |
-178,933
| Closed | -$1.98M |
|
Similar funds
GAM
VIA
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.