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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
IVE icon
451
iShares S&P 500 Value ETF
IVE
$50.2B
$4.39M 0.02%
30,293
+17,641
+139% +$2.52M
XLI icon
452
State Street Industrial Select Sector SPDR ETF
XLI
$34.6B
$4.39M 0.02%
44,668
+3,578
+9% +$341K
TOST icon
453
Toast
TOST
$19.8B
$4.37M 0.02%
242,466
+129,835
+115% +$2.44M
F icon
454
Ford
F
$55.5B
$4.37M 0.02%
375,845
+12,047
+3% +$155K
AIG icon
455
American International
AIG
$39.8B
$4.36M 0.02%
68,911
-9,015
-12% -$525K
DBX icon
456
Dropbox
DBX
$7.4B
$4.32M 0.02%
193,037
+531
+0.3% +$11.7K
IWS icon
457
iShares Russell Mid-Cap Value ETF
IWS
$16B
$4.3M 0.02%
40,844
-2,744
-6% -$288K
IHI icon
458
iShares US Medical Devices ETF
IHI
$3.48B
$4.27M 0.02%
81,248
+2,459
+3% +$125K
FND icon
459
Floor & Decor
FND
$6.35B
$4.23M 0.02%
60,722
-475
-0.8% -$34.6K
BMRN icon
460
BioMarin Pharmaceuticals
BMRN
$13.4B
$4.17M 0.02%
40,258
-40
-0.1% -$3.75K
D icon
461
Dominion Energy
D
$60.1B
$4.15M 0.02%
67,707
-6,839
-9% -$429K
SPSB icon
462
State Street SPDR Portfolio Short Term Corporate Bond ETF
SPSB
$10.8B
$4.15M 0.02%
141,295
-47,722
-25% -$1.4M
PRFT
463
DELISTED
Perficient Inc
PRFT
$4.13M 0.02%
59,202
-2,820
-5% -$194K
FSV icon
464
FirstService
FSV
$6.16B
$4.11M 0.02%
33,524
+1,549
+5% +$192K
IFF icon
465
International Flavors & Fragrances
IFF
$21.5B
$4.1M 0.02%
39,106
-9,394
-19% -$924K
IWP icon
466
iShares Russell Mid-Cap Growth ETF
IWP
$21.1B
$4.1M 0.02%
49,023
-1,603
-3% -$135K
ENS icon
467
EnerSys
ENS
$7.2B
$4.02M 0.02%
54,405
-4,417
-8% -$308K
YUM icon
468
Yum! Brands
YUM
$41.6B
$4M 0.02%
31,250
-450
-1% -$54.5K
RSG icon
469
Republic Services
RSG
$66.3B
$4M 0.02%
30,991
+98
+0.3% +$13.1K
SU icon
470
Suncor Energy
SU
$75.7B
$3.96M 0.02%
124,854
+1,321
+1% +$43.4K
AEP icon
471
American Electric Power
AEP
$68.3B
$3.96M 0.02%
41,665
+1,176
+3% +$107K
VTWO icon
472
Vanguard Russell 2000 ETF
VTWO
$17.5B
$3.94M 0.02%
55,971
-1,126
-2% -$80.9K
VYMI icon
473
Vanguard International High Dividend Yield ETF
VYMI
$21.3B
$3.92M 0.02%
65,871
+16
+0% +$918
HACK icon
474
Amplify Cybersecurity ETF
HACK
$3.01B
$3.92M 0.02%
89,063
-3,965
-4% -$178K
CW icon
475
Curtiss-Wright
CW
$26.1B
$3.92M 0.02%
23,465
+3,674
+19% +$612K
17 18
19
20 21

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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.