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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 | |
|---|---|---|---|---|---|---|
126
Academy Sports + Outdoors
ASO
$3.04B
| $64.5M | 0.17% |
1,440,032
+448,582
| +45% | +$18.6M |
|
127
Fox Factory Holding Corp
FOXF
$889M
| $64.4M | 0.17% |
2,481,215
+4,714
| +0.2% | +$110K |
|
|
WCN
128
Waste Connections
WCN
$42B
| $63.4M | 0.17% |
+339,466
| New | +$65.4M |
|
129
Alphabet (Google) Class A
GOOGL
$4.2T
| $63.3M | 0.17% |
359,232
-262,156
| -42% | -$42.9M |
|
130
Agilysys
AGYS
$2.97B
| $59M | 0.16% |
+514,590
| New | +$46.4M |
|
131
Rush Enterprises Class A
RUSHA
$9.48B
| $54.1M | 0.14% |
1,050,595
-19,715
| -2% | -$1M |
|
132
Garrett Motion
GTX
$5.58B
| $53.7M | 0.14% |
5,110,528
+128,479
| +3% | +$1.29M |
|
133
CACI
CACI
$14.9B
| $52.7M | 0.14% |
110,621
+6,663
| +6% | +$2.95M |
|
134
Galicia Financial Group
GGAL
$7.17B
| $51.8M | 0.14% |
1,028,488
-47,776
| -4% | -$2.74M |
|
|
WNS
135
DELISTED
WNS Holdings
WNS
| $50.8M | 0.13% |
803,915
-305,126
| -28% | -$18.3M |
|
|
ONT
136
Onterris Inc
ONT
$572M
| $50.7M | 0.13% |
2,317,660
+414,272
| +22% | +$7.43M |
|
137
Bio-Techne
TECH
$11.2B
| $50M | 0.13% |
972,085
-18,014
| -2% | -$905K |
|
138
Vericel Corp
VCEL
$2.25B
| $49.4M | 0.13% |
1,162,065
-123,021
| -10% | -$5.12M |
|
139
Albany International
AIN
$1.79B
| $49.3M | 0.13% |
702,432
-19,917
| -3% | -$1.32M |
|
140
Simply Good Foods
SMPL
$956M
| $48.8M | 0.13% |
+1,546,099
| New | +$53.8M |
|
141
Evolent Health
EVH
$461M
| $48.7M | 0.13% |
4,324,883
-79,054
| -2% | -$726K |
|
142
Canadian Pacific Kansas City
CP
$81.3B
| $48.5M | 0.13% |
611,365
-92,205
| -13% | -$7.09M |
|
143
Champion Homes
SKY
$5.06B
| $48.1M | 0.13% |
768,166
+22,833
| +3% | +$1.78M |
|
144
Varonis Systems
VRNS
$4.82B
| $47.9M | 0.13% |
943,002
+44,505
| +5% | +$2.02M |
|
145
Coca-Cola Europacific Partners
CCEP
$47.3B
| $47.4M | 0.13% |
+511,275
| New | +$45.8M |
|
146
Gulfport Energy Corp
GPOR
$3.03B
| $45.3M | 0.12% |
224,972
-18,743
| -8% | -$3.49M |
|
147
Ameris Bancorp
ABCB
$5.92B
| $45.1M | 0.12% |
697,361
-57,197
| -8% | -$3.39M |
|
148
Neogen
NEOG
$2.47B
| $44.9M | 0.12% |
9,403,020
-4,155,912
| -31% | -$23.9M |
|
149
Americold
COLD
$4.15B
| $44.3M | 0.12% |
2,664,598
-798,240
| -23% | -$14.5M |
|
150
Perella Weinberg Partners
PWP
$1.32B
| $44M | 0.12% |
2,268,265
+934,382
| +70% | +$16.5M |
|
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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.