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William Blair & Company

William Blair & Company Portfolio holdings

AUM $34.9B
1-Year Est. Return 18.88%
This Fund
S&P 500
This Quarter Est. Return
+9.1%
1 Year Est. Return
+18.88%
3 Year Est. Return
+73.84%
5 Year Est. Return
+90.13%
10 Year Est. Return
+563.35%
AUM
$19.5B
AUM Growth
+$2.1B
Cap. Flow
+$465M
Cap. Flow %
2.39%
Top 10 Hldgs %
22.3%
Holding
1,847
New
125
Increased
679
Reduced
598
Closed
120

Top Buys

Rank Stock Value
1
ANET icon
Arista Networks
ANET
+$24M
2
DIS icon
Walt Disney
DIS
+$22.5M
3
PYPL icon
PayPal
PYPL
+$21.1M
4
AXP icon
American Express
AXP
+$18.6M
5
NOW icon
ServiceNow
NOW
+$15.5M

Top Sells

Rank Stock Value
1
CELG
Celgene Corp
CELG
+$25M
2
ULTA icon
Ulta Beauty
ULTA
+$21.8M
3
EOG icon
EOG Resources
EOG
+$20.9M
4
ABMD
Abiomed Inc
ABMD
+$16.3M
5
GRUB
Just Eat Takeaway.com N.V. American Depositary Shares
GRUB
+$11.2M

Sector Composition

Rank Sector Weight
1 Technology 23.46%
2 Healthcare 17.35%
3 Financials 13.04%
4 Consumer Discretionary 9.94%
5 Industrials 9.53%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
WMB icon
751
Williams Companies
WMB
$87.4B
$1.1M 0.01%
46,503
-124,583
-73% -$2.85M
XBI icon
752
State Street SPDR S&P Biotech ETF
XBI
$10.2B
$1.1M 0.01%
11,584
-3,373
-23% -$292K
ALC icon
753
Alcon
ALC
$34.6B
$1.1M 0.01%
19,395
-5,425
-22% -$311K
IXUS icon
754
iShares Core MSCI Total International Stock ETF
IXUS
$60B
$1.09M 0.01%
17,684
-11,262
-39% -$675K
PRU icon
755
Prudential Financial
PRU
$42.1B
$1.09M 0.01%
11,645
+324
+3% +$29.8K
TFX icon
756
Teleflex
TFX
$6.03B
$1.09M 0.01%
+2,899
New +$998K
LNG icon
757
Cheniere Energy
LNG
$54.5B
$1.08M 0.01%
17,700
-50
-0.3% -$3.08K
NOBL icon
758
ProShares S&P 500 Dividend Aristocrats ETF
NOBL
$11.9B
$1.08M 0.01%
28,568
+5,990
+27% +$220K
VIAV icon
759
Viavi Solutions
VIAV
$9.66B
$1.07M 0.01%
71,583
-14,405
-17% -$216K
AVTR icon
760
Avantor
AVTR
$9.13B
$1.07M 0.01%
59,050
-33,000
-36% -$525K
LEN icon
761
Lennar Class A
LEN
$20.9B
$1.06M 0.01%
19,714
+778
+4% +$44.4K
IEV icon
762
iShares Europe ETF
IEV
$1.7B
$1.06M 0.01%
22,543
-4,671
-17% -$210K
EFX icon
763
Equifax
EFX
$21.3B
$1.06M 0.01%
7,550
+571
+8% +$79.1K
THFF icon
764
First Financial Corp
THFF
$967M
$1.06M 0.01%
23,114
– –
WAT icon
765
Waters Corp
WAT
$39.6B
$1.05M 0.01%
4,513
+513
+13% +$113K
DCI icon
766
Donaldson
DCI
$11.3B
$1.05M 0.01%
18,251
-1,090
-6% -$59.3K
ATO icon
767
Atmos Energy
ATO
$29.1B
$1.05M 0.01%
9,354
+1,431
+18% +$157K
PWR icon
768
Quanta Services
PWR
$101B
$1.04M 0.01%
25,510
+2,791
+12% +$114K
SNPS icon
769
Synopsys
SNPS
$79B
$1.04M 0.01%
7,442
+430
+6% +$59K
TDY icon
770
Teledyne Technologies
TDY
$31.8B
$1.02M 0.01%
2,949
+2,290
+347% +$770K
CABO icon
771
Cable One
CABO
$222M
$1.02M 0.01%
686
+386
+129% +$547K
DHS icon
772
WisdomTree US High Dividend Fund
DHS
$1.58B
$1.02M 0.01%
13,285
– –
SHV icon
773
iShares 0-1 Year Treasury Bond ETF
SHV
$20.6B
$1.01M 0.01%
9,161
– –
ISTB icon
774
iShares Core 1-5 Year USD Bond ETF
ISTB
$5.13B
$1M 0.01%
19,862
-12,528
-39% -$631K
HSBC icon
775
HSBC
HSBC
$355B
$1M 0.01%
25,589
-6,815
-21% -$258K
29 30
31
32 33

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William Blair & Company's Q4 2019 Portfolio in Review

As of Q4 2019, William Blair & Company held 1,847 positions worth $19.5B, up 12% from $17.4B the previous quarter. Its ten largest holdings account for 22% of the portfolio.

William Blair & Company's Q4 2019 filing shows 125 new, 679 increased, 598 reduced and 120 closed positions. Its largest new stake was Dynatrace: 165,602 shares worth $4.19M. The largest sale was Celgene Corp, an estimated $25M.

By sector, the portfolio is most concentrated in Technology at 23% of assets, up from 23% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q4 2019 buy was Dynatrace: 165,602 shares worth $4.19M.
  • William Blair & Company added most to Arista Networks in Q4 2019, an estimated $24M increase.
  • William Blair & Company's biggest Q4 2019 reduction was Ulta Beauty, cutting an estimated $21.8M.
  • William Blair & Company fully exited Celgene Corp in Q4 2019, selling an estimated $25M.
  • William Blair & Company's ten largest holdings make up 22% of its $19.5B portfolio in Q4 2019.
  • William Blair & Company opened 125 new positions and closed 120 in Q4 2019.
  • William Blair & Company's portfolio value rose 12% quarter-over-quarter to $19.5B.

Based on William Blair & Company's 13F filing for Q4 2019, filed 13 Feb 2020.