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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 | |
|---|---|---|---|---|---|---|
301
Steven Madden
SHOO
$3.49B
| $16.2M | 0.04% |
677,215
-56,375
| -8% | -$1.32M |
|
|
GDEN
302
DELISTED
Golden Entertainment
GDEN
| $16.2M | 0.04% |
550,673
-44,592
| -7% | -$1.22M |
|
303
Titan Machinery
TITN
$429M
| $16.2M | 0.04% |
816,729
-67,723
| -8% | -$1.24M |
|
304
Murphy USA
MUSA
$10B
| $16.1M | 0.04% |
39,592
-31,455
| -44% | -$14.3M |
|
305
Eli Lilly
LLY
$1.09T
| $16M | 0.04% |
20,567
-25,255
| -55% | -$19.6M |
|
306
Descartes Systems
DSGX
$6.58B
| $15.3M | 0.04% |
150,938
-82,400
| -35% | -$8.69M |
|
307
CRH
CRH
$65.8B
| $14.8M | 0.04% |
161,626
-188,456
| -54% | -$17.2M |
|
308
Monro
MNRO
$361M
| $14.8M | 0.04% |
993,878
-80,847
| -8% | -$1.16M |
|
309
Progressive
PGR
$121B
| $14.5M | 0.04% |
54,189
-105,212
| -66% | -$28.8M |
|
310
Werner Enterprises
WERN
$2.27B
| $14.4M | 0.04% |
525,976
-179,300
| -25% | -$4.9M |
|
311
Grupo Aeroportuario del Sureste
ASR
$8.27B
| $14.2M | 0.04% |
44,528
-4,686
| -10% | -$1.46M |
|
312
NextEra Energy
NEE
$179B
| $13.8M | 0.04% |
199,467
-182,695
| -48% | -$12.7M |
|
313
El Pollo Loco
LOCO
$462M
| $13.7M | 0.04% |
1,242,563
-101,788
| -8% | -$1.01M |
|
314
iShares Russell 2000 Growth ETF
IWO
$15B
| $13.3M | 0.04% |
46,481
-2,914
| -6% | -$767K |
|
315
Netflix
NFLX
$309B
| $13.2M | 0.04% |
98,360
-58,610
| -37% | -$6.63M |
|
316
Cognyte Software
CGNT
$677M
| $13.2M | 0.04% |
1,425,288
-1,195,724
| -46% | -$11.8M |
|
317
Oxford Industries
OXM
$541M
| $13.1M | 0.03% |
324,789
-27,041
| -8% | -$1.36M |
|
318
Winnebago Industries
WGO
$908M
| $12.7M | 0.03% |
437,988
-36,296
| -8% | -$1.19M |
|
319
Krystal Biotech
KRYS
$9.87B
| $12.5M | 0.03% |
+91,099
| New | +$13.4M |
|
320
Inter&Co
INTR
$2.24B
| $12.4M | 0.03% |
+1,668,013
| New | +$11.1M |
|
321
Cencora
COR
$61.1B
| $11.3M | 0.03% |
37,665
+36,893
| +4,779% | +$10.6M |
|
322
Hims & Hers Health
HIMS
$7.02B
| $11.1M | 0.03% |
222,487
-148,212
| -40% | -$6.7M |
|
323
ODDITY Tech
ODD
$594M
| $10.8M | 0.03% |
142,548
-124,909
| -47% | -$7.62M |
|
324
Arthur J. Gallagher & Co
AJG
$65.4B
| $10.7M | 0.03% |
33,385
-38,282
| -53% | -$12.6M |
|
325
Graco
GGG
$13.3B
| $10.5M | 0.03% |
121,982
-148,453
| -55% | -$12.3M |
|
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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.