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William Blair Investment Management

William Blair Investment Management Portfolio holdings

AUM $33.3B
1-Year Est. Return 44.76%
This Fund
S&P 500
This Quarter Est. Return
+9.84%
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
$31.2B
AUM Growth
+$2.49B
Cap. Flow
+$357M
Cap. Flow %
1.14%
Top 10 Hldgs %
20.4%
Holding
426
New
33
Increased
232
Reduced
127
Closed
31

Top Buys

Rank Stock Value
1
TECH icon
Bio-Techne
TECH
+$186M
2
TYL icon
Tyler Technologies
TYL
+$171M
3
NVDA icon
NVIDIA
NVDA
+$167M
4
NOW icon
ServiceNow
NOW
+$128M
5
BFAM icon
Bright Horizons
BFAM
+$109M

Sector Composition

Rank Sector Weight
1 Technology 25.63%
2 Industrials 16.13%
3 Healthcare 15.71%
4 Consumer Discretionary 14.7%
5 Financials 8.24%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow
NWE icon
201
NorthWestern Energy
NWE
$4.35B
$34.5M 0.11%
608,578
+11,311
+2% +$661K
RYAAY icon
202
Ryanair
RYAAY
$30.8B
$34.5M 0.11%
779,680
+30,942
+4% +$1.25M
WK icon
203
Workiva
WK
$3.76B
$34.5M 0.11%
339,173
+8,112
+2% +$780K
CTRE icon
204
CareTrust REIT
CTRE
$9.14B
$34.4M 0.11%
1,731,564
+348,027
+25% +$6.8M
XPRO icon
205
Expro Ltd
XPRO
$2.05B
$34.3M 0.11%
1,936,089
+39,412
+2% +$711K
THS
206
DELISTED
Treehouse Foods
THS
$34.2M 0.11%
677,964
+12,637
+2% +$648K
VMC icon
207
Vulcan Materials
VMC
$37.3B
$34M 0.11%
150,972
+19,671
+15% +$3.77M
PEB icon
208
Pebblebrook Hotel Trust
PEB
$2.01B
$34M 0.11%
2,441,247
+155,171
+7% +$2.16M
PNFP icon
209
Pinnacle Financial Partners Inc
PNFP
$16B
$33.8M 0.11%
+597,207
New +$31.4M
KALU icon
210
Kaiser Aluminum
KALU
$3.16B
$33.5M 0.11%
467,327
+8,738
+2% +$577K
EXP icon
211
Eagle Materials
EXP
$6.57B
$33.4M 0.11%
179,420
+25,862
+17% +$4.12M
WINA icon
212
Winmark
WINA
$1.33B
$33.4M 0.11%
100,556
+1,400
+1% +$474K
VRNT
213
DELISTED
Verint Systems
VRNT
$33.3M 0.11%
951,046
+18,090
+2% +$652K
ADSK icon
214
Autodesk
ADSK
$53.1B
$32.8M 0.11%
160,504
+2,292
+1% +$458K
ADC icon
215
Agree Realty
ADC
$9.13B
$32.8M 0.11%
501,193
+73,611
+17% +$4.87M
SHOO icon
216
Steven Madden
SHOO
$3.53B
$32.5M 0.1%
993,776
-144,974
-13% -$4.83M
BAH icon
217
Booz Allen Hamilton
BAH
$9.45B
$32.4M 0.1%
+290,132
New +$28.7M
SR icon
218
Spire
SR
$4.87B
$32.2M 0.1%
507,471
+9,468
+2% +$635K
ONB icon
219
Old National Bancorp
ONB
$10.3B
$32M 0.1%
2,293,731
+42,636
+2% +$567K
NXGN
220
DELISTED
NextGen Healthcare, Inc. Common Stock
NXGN
$31.9M 0.1%
1,964,309
+420,329
+27% +$6.96M
CBRL icon
221
Cracker Barrel
CBRL
$1.25B
$31.6M 0.1%
339,056
+6,336
+2% +$651K
PDFS icon
222
PDF Solutions
PDFS
$2.08B
$31.4M 0.1%
697,225
-87,692
-11% -$3.58M
CENTA icon
223
Central Garden & Pet Co Class A
CENTA
$2.4B
$31.2M 0.1%
1,067,968
+19,892
+2% +$575K
ESRT icon
224
Empire State Realty Trust
ESRT
$802M
$30.9M 0.1%
4,129,704
+77,132
+2% +$486K
FCPT icon
225
Four Corners Property Trust
FCPT
$2.69B
$30.9M 0.1%
1,217,689
+22,716
+2% +$588K

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William Blair Investment Management's Q2 2023 Portfolio in Review

As of Q2 2023, William Blair Investment Management held 426 positions worth $31.2B, up 8.7% from $28.7B the previous quarter. Its ten largest holdings account for 20% of the portfolio.

William Blair Investment Management's Q2 2023 filing shows 33 new, 232 increased, 127 reduced and 31 closed positions. Its largest new stake was Bio-Techne: 2,314,458 shares worth $189M. The largest sale was PagerDuty, an estimated $171M.

By sector, the portfolio is most concentrated in Technology at 26% of assets, up from 25% a quarter earlier, followed by Industrials and Healthcare.

  • William Blair Investment Management's largest Q2 2023 buy was Bio-Techne: 2,314,458 shares worth $189M.
  • William Blair Investment Management added most to NVIDIA in Q2 2023, an estimated $167M increase.
  • William Blair Investment Management's biggest Q2 2023 reduction was Builders FirstSource, cutting an estimated $157M.
  • William Blair Investment Management fully exited PagerDuty in Q2 2023, selling an estimated $171M.
  • William Blair Investment Management's ten largest holdings make up 20% of its $31.2B portfolio in Q2 2023.
  • William Blair Investment Management opened 33 new positions and closed 31 in Q2 2023.
  • William Blair Investment Management's portfolio value rose 8.7% quarter-over-quarter to $31.2B.

Based on William Blair Investment Management's 13F filing for Q2 2023, filed 11 Aug 2023.