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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
+8.67%
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
$23B
AUM Growth
+$1.22B
Cap. Flow
-$156M
Cap. Flow %
-0.68%
Top 10 Hldgs %
22.7%
Holding
1,905
New
81
Increased
568
Reduced
855
Closed
91

Top Buys

Rank Stock Value
1
POOL icon
Pool Corp
POOL
+$43.2M
2
TEAM icon
Atlassian
TEAM
+$36.6M
3
NOVT icon
Novanta
NOVT
+$28.8M
4
PANW icon
Palo Alto Networks
PANW
+$23.2M
5
MSI icon
Motorola Solutions
MSI
+$20.1M

Top Sells

Rank Stock Value
1
ABMD
Abiomed Inc
ABMD
+$103M
2
PYPL icon
PayPal
PYPL
+$28.4M
3
DIS icon
Walt Disney
DIS
+$26.7M
4
KMX icon
CarMax
KMX
+$25.2M
5
CRM icon
Salesforce
CRM
+$24.3M

Sector Composition

Rank Sector Weight
1 Technology 22.31%
2 Healthcare 19.82%
3 Financials 12.49%
4 Industrials 11.58%
5 Consumer Discretionary 8.46%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
ARKK icon
876
ARK Innovation ETF
ARKK
$6.54B
$851K ﹤0.01%
27,247
+721
+3% +$25.8K
ONB icon
877
Old National Bancorp
ONB
$10.4B
$850K ﹤0.01%
47,298
-1,300
-3% -$23.9K
HCSG icon
878
Healthcare Services Group
HCSG
$1.45B
$848K ﹤0.01%
70,634
-5,692
-7% -$75.2K
FTSM icon
879
First Trust Enhanced Short Maturity ETF
FTSM
$6.54B
$843K ﹤0.01%
14,181
-3,100
-18% -$184K
PLAY icon
880
Dave & Buster's
PLAY
$370M
$842K ﹤0.01%
23,746
+1,018
+4% +$36.8K
BMO icon
881
Bank of Montreal
BMO
$129B
$840K ﹤0.01%
9,271
-12
-0.1% -$1.11K
HZNP
882
DELISTED
Horizon Therapeutics Public Limited Company Ordinary Shares
HZNP
$831K ﹤0.01%
7,298
-6,701
-48% -$557K
BBJP icon
883
JPMorgan BetaBuilders Japan ETF
BBJP
$19.2B
$827K ﹤0.01%
18,419
+5,078
+38% +$223K
JEPI icon
884
JPMorgan Equity Premium Income ETF
JEPI
$46.2B
$826K ﹤0.01%
15,152
+5,729
+61% +$311K
EEMA icon
885
iShares MSCI Emerging Markets Asia ETF
EEMA
$871M
$823K ﹤0.01%
12,994
-1,200
-8% -$72.5K
ACCD
886
DELISTED
Accolade Inc
ACCD
$821K ﹤0.01%
105,439
-2,717
-3% -$25.9K
NXPI icon
887
NXP Semiconductors
NXPI
$58.5B
$820K ﹤0.01%
5,190
+1,981
+62% +$314K
LYB icon
888
LyondellBasell Industries
LYB
$20.2B
$818K ﹤0.01%
9,852
+67
+0.7% +$5.49K
IHE icon
889
iShares US Pharmaceuticals ETF
IHE
$1.65B
$818K ﹤0.01%
13,179
+3
+0% +$180
WRK
890
DELISTED
WestRock Company
WRK
$818K ﹤0.01%
23,253
-12,569
-35% -$438K
ISTB icon
891
iShares Core 1-5 Year USD Bond ETF
ISTB
$5.14B
$814K ﹤0.01%
17,530
-2,130
-11% -$98.6K
NICE icon
892
Nice
NICE
$6.17B
$813K ﹤0.01%
4,228
+180
+4% +$34.7K
GTLS
893
DELISTED
Chart Industries
GTLS
$812K ﹤0.01%
7,045
+2,989
+74% +$480K
VOOG icon
894
Vanguard S&P 500 Growth ETF
VOOG
$27.4B
$811K ﹤0.01%
23,076
+2,766
+14% +$99.9K
ROST icon
895
Ross Stores
ROST
$78.6B
$802K ﹤0.01%
6,911
-319
-4% -$32.5K
AZEK
896
DELISTED
The AZEK Co
AZEK
$799K ﹤0.01%
39,335
-49,534
-56% -$917K
ZROZ icon
897
PIMCO 25+ Year Zero Coupon US Treasury Index Exchange-Traded Fund
ZROZ
$1.31B
$797K ﹤0.01%
9,126
+101
+1% +$9.05K
CTIC
898
DELISTED
CTI BioPharma Corp. (DE) Common Stock
CTIC
$796K ﹤0.01%
132,413
-43,785
-25% -$239K
MSCI icon
899
MSCI
MSCI
$41.8B
$796K ﹤0.01%
1,710
– –
CGGR icon
900
Capital Group Growth ETF
CGGR
$25.3B
$795K ﹤0.01%
+39,860
New +$811K
34 35
36
37 38

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William Blair & Company's Q4 2022 Portfolio in Review

As of Q4 2022, William Blair & Company held 1,905 positions worth $23B, up 5.6% from $21.8B the previous quarter. Its ten largest holdings account for 23% of the portfolio.

William Blair & Company's Q4 2022 filing shows 81 new, 568 increased, 855 reduced and 91 closed positions. Its largest new stake was Atlassian: 230,078 shares worth $29.6M. The largest sale was Abiomed Inc, an estimated $103M.

By sector, the portfolio is most concentrated in Technology at 22% of assets, down from 23% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q4 2022 buy was Atlassian: 230,078 shares worth $29.6M.
  • William Blair & Company added most to Pool Corp in Q4 2022, an estimated $43.2M increase.
  • William Blair & Company's biggest Q4 2022 reduction was PayPal, cutting an estimated $28.4M.
  • William Blair & Company fully exited Abiomed Inc in Q4 2022, selling an estimated $103M.
  • William Blair & Company's ten largest holdings make up 23% of its $23B portfolio in Q4 2022.
  • William Blair & Company opened 81 new positions and closed 91 in Q4 2022.
  • William Blair & Company's portfolio value rose 5.6% quarter-over-quarter to $23B.

Based on William Blair & Company's 13F filing for Q4 2022, filed 10 Feb 2023.