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
LSCC icon
626
Lattice Semiconductor
LSCC
$18.4B
$2.02M 0.01%
31,083
-332
-1% -$20K
NTR icon
627
Nutrien
NTR
$32B
$2.01M 0.01%
27,510
+12,618
+85% +$997K
URI icon
628
United Rentals
URI
$69.3B
$2M 0.01%
5,638
-85
-1% -$27.9K
AWK icon
629
American Water Works
AWK
$27.1B
$2M 0.01%
13,135
+1,874
+17% +$271K
SSTI icon
630
SoundThinking
SSTI
$105M
$2M 0.01%
59,161
-923
-2% -$30.9K
GPC icon
631
Genuine Parts
GPC
$18.5B
$2M 0.01%
11,519
-37
-0.3% -$6.44K
MELI icon
632
Mercado Libre
MELI
$92.7B
$1.99M 0.01%
2,354
-176
-7% -$157K
IYW icon
633
iShares US Technology ETF
IYW
$25.7B
$1.99M 0.01%
26,705
-641
-2% -$49K
YUMC icon
634
Yum China
YUMC
$16.2B
$1.98M 0.01%
36,272
-1,264
-3% -$64.3K
ITT icon
635
ITT
ITT
$19.2B
$1.94M 0.01%
23,898
-499
-2% -$38.7K
FLG
636
Flagstar Bank National Association
FLG
$5.92B
$1.94M 0.01%
75,090
+52,622
+234% +$1.41M
BROS icon
637
Dutch Bros
BROS
$8.99B
$1.94M 0.01%
68,722
-26,967
-28% -$892K
SUSA icon
638
iShares ESG Optimized MSCI USA ETF
SUSA
$4.19B
$1.94M 0.01%
23,529
+36
+0.2% +$2.96K
RTO icon
639
Rentokil
RTO
$12.1B
$1.93M 0.01%
+62,800
New +$1.95M
IJJ icon
640
iShares S&P Mid-Cap 400 Value ETF
IJJ
$9.04B
$1.92M 0.01%
19,087
+6
+0% +$599
SNA icon
641
Snap-on
SNA
$20.8B
$1.92M 0.01%
8,405
-10
-0.1% -$2.26K
CPB icon
642
Campbell Soup
CPB
$6.94B
$1.91M 0.01%
33,710
+10
+0% +$525
RSI icon
643
Rush Street Interactive
RSI
$2.86B
$1.91M 0.01%
532,762
– –
CYBR
644
DELISTED
CyberArk
CYBR
$1.9M 0.01%
14,677
+630
+4% +$91.1K
DOCN icon
645
DigitalOcean
DOCN
$15.9B
$1.89M 0.01%
74,336
-2,916
-4% -$91.3K
CLF icon
646
Cleveland-Cliffs
CLF
$6.93B
$1.87M 0.01%
116,177
-55,459
-32% -$835K
WELL icon
647
Welltower
WELL
$169B
$1.87M 0.01%
28,508
+2,006
+8% +$129K
PRO
648
DELISTED
PROS Holdings
PRO
$1.86M 0.01%
76,834
-1,700
-2% -$41.7K
MMSI icon
649
Merit Medical Systems
MMSI
$5.42B
$1.86M 0.01%
26,312
+22
+0.1% +$1.47K
RNG icon
650
RingCentral
RNG
$5.33B
$1.86M 0.01%
52,437
-3,974
-7% -$142K
24 25
26
27 28

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
Newport Trust Company
Newport Trust Company Washington, District of Columbia $40.7B AUM 24.62% 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.