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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
CLX icon
676
Clorox
CLX
$12.7B
$1.68M 0.01%
11,974
-2,902
-20% -$412K
CBRE icon
677
CBRE Group
CBRE
$43.2B
$1.68M 0.01%
21,771
-442
-2% -$32.6K
INGN icon
678
Inogen
INGN
$155M
$1.67M 0.01%
84,900
-24,919
-23% -$537K
XIFR
679
XPLR Infrastructure LP
XIFR
$1.09B
$1.66M 0.01%
23,622
+9,008
+62% +$674K
AVB icon
680
AvalonBay Communities
AVB
$26.2B
$1.65M 0.01%
10,215
+236
+2% +$40.2K
SPLV icon
681
Invesco S&P 500 Low Volatility ETF
SPLV
$7.21B
$1.64M 0.01%
25,679
+3,991
+18% +$248K
PCAR icon
682
PACCAR
PCAR
$68.4B
$1.64M 0.01%
24,836
+431
+2% +$28.2K
XAR icon
683
State Street SPDR S&P Aerospace & Defense ETF
XAR
$6.6B
$1.64M 0.01%
14,876
+2,174
+17% +$230K
FFIC
684
DELISTED
Flushing Financial
FFIC
$1.64M 0.01%
84,470
+850
+1% +$17.1K
VFH icon
685
Vanguard Financials ETF
VFH
$13.9B
$1.63M 0.01%
19,759
-1,929
-9% -$159K
HEI.A icon
686
HEICO Corp Class A
HEI.A
$37.8B
$1.63M 0.01%
13,597
+41
+0.3% +$5K
IQV icon
687
IQVIA
IQV
$39.5B
$1.63M 0.01%
7,940
+2,922
+58% +$593K
LAZR
688
DELISTED
Luminar Technologies
LAZR
$1.62M 0.01%
21,809
-38,697
-64% -$4.21M
ETSY icon
689
Etsy
ETSY
$7.33B
$1.61M 0.01%
13,442
-1,490
-10% -$170K
RKLB icon
690
Rocket Lab Corp
RKLB
$52.1B
$1.6M 0.01%
425,471
+1,000
+0.2% +$4.37K
CALY
691
Callaway Golf Company
CALY
$3B
$1.6M 0.01%
81,190
– –
MGV icon
692
Vanguard Morningstar Mega Cap Value ETF
MGV
$13.7B
$1.6M 0.01%
15,579
+10,474
+205% +$1.05M
EQR icon
693
Equity Residential
EQR
$24.7B
$1.59M 0.01%
27,032
-741
-3% -$46.4K
MINT icon
694
PIMCO Enhanced Short Maturity Active Exchange-Traded Fund
MINT
$17.1B
$1.59M 0.01%
16,147
+386
+2% +$38.1K
VCYT icon
695
Veracyte
VCYT
$3.49B
$1.59M 0.01%
67,010
-3,230
-5% -$75.1K
LZ icon
696
LegalZoom.com
LZ
$949M
$1.59M 0.01%
205,023
+50,562
+33% +$439K
VERU icon
697
Veru
VERU
$45.5M
$1.58M 0.01%
30,009
-4,000
-12% -$329K
WYNN icon
698
Wynn Resorts
WYNN
$10.6B
$1.58M 0.01%
19,154
+15,801
+471% +$1.16M
SPYG icon
699
State Street SPDR Portfolio S&P 500 Growth ETF
SPYG
$55.6B
$1.56M 0.01%
30,787
-910
-3% -$47.3K
IDV icon
700
iShares International Select Dividend ETF
IDV
$8.53B
$1.55M 0.01%
57,009
-414
-0.7% -$10.5K
26 27
28
29 30

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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.