We are live on ! Find out more
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
KBE icon
951
State Street SPDR S&P Bank ETF
KBE
$1.75B
$661K ﹤0.01%
14,636
-4,103
-22% -$193K
VT icon
952
Vanguard Total World Stock ETF
VT
$81.9B
$659K ﹤0.01%
7,644
-1,835
-19% -$157K
NI icon
953
NiSource
NI
$20.2B
$656K ﹤0.01%
23,906
-1,891
-7% -$49.7K
CMA
954
DELISTED
Comerica
CMA
$655K ﹤0.01%
9,800
-218
-2% -$15.1K
RIO icon
955
Rio Tinto
RIO
$160B
$649K ﹤0.01%
9,112
+4,850
+114% +$305K
WDC icon
956
Western Digital
WDC
$168B
$644K ﹤0.01%
27,006
-2,138
-7% -$56.4K
MXCT icon
957
MaxCyte
MXCT
$149M
$642K ﹤0.01%
117,505
+2,500
+2% +$15.3K
BPOP icon
958
Popular Inc
BPOP
$11.3B
$640K ﹤0.01%
9,650
-26
-0.3% -$1.81K
SPYM
959
State Street SPDR Portfolio S&P 500 ETF
SPYM
$170B
$639K ﹤0.01%
14,177
+1,500
+12% +$67.8K
SLN
960
Silence Therapeutics
SLN
$660M
$639K ﹤0.01%
41,887
– –
VV icon
961
Vanguard Morningstar Large-Cap ETF
VV
$54.9B
$636K ﹤0.01%
3,654
+57
+2% +$10K
OLO
962
DELISTED
Olo Inc
OLO
$634K ﹤0.01%
101,379
+1,251
+1% +$9.44K
ENPH icon
963
Enphase Energy
ENPH
$5.39B
$630K ﹤0.01%
2,378
+606
+34% +$176K
QTEC icon
964
First Trust NASDAQ-100 Technology Index Fund
QTEC
$4.92B
$630K ﹤0.01%
5,986
– –
GWX icon
965
State Street SPDR S&P International Small Cap ETF
GWX
$928M
$629K ﹤0.01%
21,399
-713
-3% -$20.2K
TIXT
966
DELISTED
TELUS International
TIXT
$629K ﹤0.01%
31,797
-5,911
-16% -$131K
UAA icon
967
Under Armour
UAA
$2.3B
$629K ﹤0.01%
61,868
-6,231
-9% -$53.9K
CF icon
968
CF Industries
CF
$17.7B
$628K ﹤0.01%
7,372
-226
-3% -$22.9K
STAG icon
969
STAG Industrial
STAG
$7.12B
$628K ﹤0.01%
19,438
-2,151
-10% -$67.4K
HES
970
DELISTED
Hess
HES
$627K ﹤0.01%
4,424
+66
+2% +$9.07K
IEI icon
971
iShares 3-7 Year Treasury Bond ETF
IEI
$17.7B
$626K ﹤0.01%
5,445
-847
-13% -$97.1K
ATR icon
972
AptarGroup
ATR
$8.43B
$624K ﹤0.01%
5,671
-77
-1% -$7.91K
UEC icon
973
Uranium Energy
UEC
$5.54B
$623K ﹤0.01%
160,500
– –
MTTR
974
DELISTED
Matterport, Inc. Class A Common Stock
MTTR
$619K ﹤0.01%
221,138
– –
IBTE
975
DELISTED
iShares iBonds Dec 2024 Term Treasury ETF
IBTE
$619K ﹤0.01%
25,941
+3,671
+16% +$87.6K
37 38
39
40 41

Similar funds

Parallax Volatility Advisers
Parallax Volatility Advisers San Francisco, California $38.6B AUM 45.89% 1-Year Est. Return
Credit Agricole
Credit Agricole Montrouge Cedex, France $38.1B AUM
Carson Wealth (CWM LLC)
Carson Wealth (CWM LLC) Omaha, Nebraska $38.1B AUM 19.66% 1-Year Est. Return
Nomura Holdings
Nomura Holdings Tokyo, Japan $37.7B AUM 34.44% 1-Year Est. Return
Fayez Sarofim & Co
Fayez Sarofim & Co Houston, Texas $39.1B AUM 15.14% 1-Year Est. Return
HF
HRT Financial New York $40.1B AUM 58.22% 1-Year Est. Return
First Manhattan
First Manhattan New York $36.1B AUM 11.5% 1-Year Est. Return
Viking Global Investors
Viking Global Investors Stamford, Connecticut $35.7B AUM 21.3% 1-Year Est. Return

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.