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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
QDEL icon
501
QuidelOrtho
QDEL
$1.02B
$3.48M 0.02%
40,568
+21,325
+111% +$1.81M
WTFC icon
502
Wintrust Financial
WTFC
$11B
$3.47M 0.02%
41,019
-929
-2% -$82.1K
SMH icon
503
VanEck Semiconductor ETF
SMH
$72B
$3.46M 0.02%
34,140
+11,610
+52% +$1.18M
IBN icon
504
ICICI Bank
IBN
$107B
$3.45M 0.02%
157,567
-1,317
-0.8% -$29.3K
VDC icon
505
Vanguard Consumer Staples ETF
VDC
$7.96B
$3.44M 0.02%
17,966
+4,742
+36% +$892K
RWO icon
506
State Street SPDR Dow Jones Global Real Estate ETF
RWO
$1.28B
$3.41M 0.01%
83,471
-29,668
-26% -$1.2M
BALL icon
507
Ball Corp
BALL
$16.4B
$3.41M 0.01%
48,640
-70,212
-59% -$3.64M
GM icon
508
General Motors
GM
$76.1B
$3.41M 0.01%
101,393
-4,704
-4% -$174K
CWB icon
509
State Street SPDR Bloomberg Convertible Securities ETF
CWB
$5.72B
$3.41M 0.01%
52,946
+3,005
+6% +$196K
ZBH icon
510
Zimmer Biomet
ZBH
$18.7B
$3.4M 0.01%
26,691
+346
+1% +$40.2K
BIDU icon
511
Baidu
BIDU
$35.6B
$3.4M 0.01%
29,687
+95
+0.3% +$9.69K
PHYS icon
512
Sprott Physical Gold
PHYS
$16B
$3.4M 0.01%
240,782
– –
MUB icon
513
iShares National Muni Bond ETF
MUB
$45.9B
$3.39M 0.01%
32,170
+10,635
+49% +$1.11M
MLM icon
514
Martin Marietta Materials
MLM
$32.7B
$3.37M 0.01%
9,959
-27
-0.3% -$9.21K
SDVY icon
515
First Trust SMID Cap Rising Dividend Achievers ETF
SDVY
$11.8B
$3.36M 0.01%
129,035
+126,695
+5,414% +$3.29M
SP
516
DELISTED
SP Plus Corporation
SP
$3.33M 0.01%
95,933
-27,523
-22% -$949K
JAMF
517
DELISTED
Jamf
JAMF
$3.32M 0.01%
155,887
+21,809
+16% +$480K
LSTR icon
518
Landstar System
LSTR
$6.31B
$3.31M 0.01%
20,346
+1,646
+9% +$264K
OKE icon
519
Oneok
OKE
$58.3B
$3.29M 0.01%
50,083
-1,157
-2% -$71.1K
VHT icon
520
Vanguard Health Care ETF
VHT
$19B
$3.27M 0.01%
13,180
+535
+4% +$130K
RPAY icon
521
Repay Holdings
RPAY
$311M
$3.24M 0.01%
401,974
-93,381
-19% -$672K
CRSP icon
522
CRISPR Therapeutics
CRSP
$5.22B
$3.24M 0.01%
79,593
-3,098
-4% -$164K
SNOW icon
523
Snowflake
SNOW
$115B
$3.23M 0.01%
22,498
+1,266
+6% +$193K
STR
524
DELISTED
Sitio Royalties
STR
$3.23M 0.01%
+111,814
New +$3.24M
VTIP icon
525
Vanguard Short-Term Inflation-Protected Securities Index Fund
VTIP
$19.8B
$3.22M 0.01%
69,030
-5,508
-7% -$262K
19 20
21
22 23

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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.