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William Blair & Company

William Blair & Company Portfolio holdings

AUM $38.4B
1-Year Est. Return 25.71%
This Fund
S&P 500
This Quarter Est. Return
+9.7%
1 Year Est. Return
+25.71%
3 Year Est. Return
+88.7%
5 Year Est. Return
+104.53%
10 Year Est. Return
+665.86%
AUM
$27.3B
AUM Growth
+$2.26B
Cap. Flow
+$202M
Cap. Flow %
0.74%
Top 10 Hldgs %
24.36%
Holding
1,897
New
97
Increased
682
Reduced
737
Closed
88

Top Buys

Rank Stock Value
1
COST icon
Costco
COST
+$28.3M
2
ALL icon
Allstate
ALL
+$25.8M
3
ISRG icon
Intuitive Surgical
ISRG
+$19.6M
4
NEOG icon
Neogen
NEOG
+$17.4M
5
DV icon
DoubleVerify
DV
+$17.3M

Top Sells

Rank Stock Value
1
NBIX icon
Neurocrine Biosciences
NBIX
+$29.1M
2
PLNT icon
Planet Fitness
PLNT
+$20.4M
3
ABNB icon
Airbnb
ABNB
+$17.1M
4
IBM icon
IBM
IBM
+$14.8M
5
XMTR icon
Xometry
XMTR
+$10.8M

Sector Composition

Rank Sector Weight
1 Technology 25.59%
2 Healthcare 18.44%
3 Industrials 11.64%
4 Financials 11.51%
5 Consumer Discretionary 8.51%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
MKC icon
101
McCormick & Company Non-Voting
MKC
$14.2B
$62.9M 0.23%
721,433
-1,859
-0.3% -$164K
SCHW
102
Charles Schwab
SCHW
$187B
$62.2M 0.23%
1,097,426
+297,812
+37% +$15.6M
LOW icon
103
Lowe's Companies
LOW
$121B
$61.5M 0.23%
272,553
+8,816
+3% +$1.83M
ABNB icon
104
Airbnb
ABNB
$108B
$60.7M 0.22%
473,630
-146,168
-24% -$17.1M
MSI icon
105
Motorola Solutions
MSI
$77.1B
$59.1M 0.22%
201,661
+18,529
+10% +$5.31M
PWSC
106
DELISTED
PowerSchool Holdings, Inc.
PWSC
$58.6M 0.21%
3,062,381
+80,643
+3% +$1.54M
TSLA icon
107
Tesla
TSLA
$1.28T
$58M 0.21%
221,510
-5,634
-2% -$1.13M
BA icon
108
Boeing
BA
$182B
$57.6M 0.21%
272,812
+2,852
+1% +$592K
XOM icon
109
ExxonMobil
XOM
$653B
$56.6M 0.21%
527,370
+61,708
+13% +$6.73M
WAB icon
110
Wabtec
WAB
$50B
$56.5M 0.21%
515,267
-23,855
-4% -$2.37M
TREX icon
111
Trex
TREX
$4.97B
$54.2M 0.2%
827,149
+172,412
+26% +$9.62M
SPLK
112
DELISTED
Splunk Inc
SPLK
$53.5M 0.2%
504,563
+3,666
+0.7% +$348K
GD icon
113
General Dynamics
GD
$106B
$52.4M 0.19%
243,368
+28,413
+13% +$6.13M
AVGO icon
114
Broadcom
AVGO
$2.01T
$51.7M 0.19%
595,730
+17,220
+3% +$1.23M
IBM icon
115
IBM
IBM
$220B
$51.5M 0.19%
385,177
-114,848
-23% -$14.8M
PTLO icon
116
Portillo's
PTLO
$333M
$50.8M 0.19%
2,254,926
+756,325
+50% +$15.8M
TXN icon
117
Texas Instruments
TXN
$257B
$50.3M 0.18%
279,614
-15,415
-5% -$2.65M
SPT icon
118
Sprout Social
SPT
$582M
$49.8M 0.18%
1,079,855
+178,386
+20% +$8.48M
DIS icon
119
Walt Disney
DIS
$178B
$49.4M 0.18%
553,552
-41,049
-7% -$3.89M
VUG icon
120
Vanguard Morningstar Growth ETF
VUG
$229B
$48.8M 0.18%
1,033,728
-2,280
-0.2% -$98.9K
IWV icon
121
iShares Russell 3000 ETF
IWV
$20.4B
$48.7M 0.18%
191,340
-6,866
-3% -$1.65M
TOST icon
122
Toast
TOST
$19.4B
$47.2M 0.17%
2,091,163
+135,461
+7% +$2.7M
NOVT icon
123
Novanta
NOVT
$6.27B
$46.8M 0.17%
253,966
-11,678
-4% -$1.91M
GWW icon
124
W.W. Grainger
GWW
$61.3B
$45.9M 0.17%
58,167
-2,237
-4% -$1.54M
PFE icon
125
Pfizer
PFE
$150B
$44.6M 0.16%
1,216,720
-88,497
-7% -$3.44M
3 4
5
6 7

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William Blair & Company's Q2 2023 Portfolio in Review

As of Q2 2023, William Blair & Company held 1,897 positions worth $27.3B, up 9% from $25B the previous quarter. Its ten largest holdings account for 24% of the portfolio.

William Blair & Company's Q2 2023 filing shows 97 new, 682 increased, 737 reduced and 88 closed positions. Its largest new stake was Innovator US Equity Power Buffer ETF April: 112,249 shares worth $3.47M. The largest sale was Neurocrine Biosciences, an estimated $29.1M.

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

  • William Blair & Company's largest Q2 2023 buy was Innovator US Equity Power Buffer ETF April: 112,249 shares worth $3.47M.
  • William Blair & Company added most to Costco in Q2 2023, an estimated $28.3M increase.
  • William Blair & Company's biggest Q2 2023 reduction was Neurocrine Biosciences, cutting an estimated $29.1M.
  • William Blair & Company fully exited ABB Ltd in Q2 2023, selling an estimated $7.21M.
  • William Blair & Company's ten largest holdings make up 24% of its $27.3B portfolio in Q2 2023.
  • William Blair & Company opened 97 new positions and closed 88 in Q2 2023.
  • William Blair & Company's portfolio value rose 9% quarter-over-quarter to $27.3B.

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