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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
FBC
501
DELISTED
Flagstar Bancorp, Inc. New
FBC
$3.17M 0.02%
82,900
-5,000
-6% -$187K
HACK icon
502
Amplify Cybersecurity ETF
HACK
$2.85B
$3.14M 0.02%
75,660
-7,620
-9% -$305K
ODFL icon
503
Old Dominion Freight Line
ODFL
$44B
$3.13M 0.02%
49,515
-8,805
-15% -$541K
LQD icon
504
iShares iBoxx $ Investment Grade Corporate Bond ETF
LQD
$32.9B
$3.08M 0.02%
24,063
+3,186
+15% +$406K
IBN icon
505
ICICI Bank
IBN
$109B
$3.06M 0.02%
203,051
+6,814
+3% +$92.5K
CP icon
506
Canadian Pacific Kansas City
CP
$79.3B
$3.06M 0.02%
59,950
-720
-1% -$33.8K
AMED
507
DELISTED
Amedisys
AMED
$3.04M 0.02%
18,242
+13,147
+258% +$1.96M
BKU icon
508
Bankunited
BKU
$3.37B
$3.04M 0.02%
83,242
-600
-0.7% -$20.9K
WELL icon
509
Welltower
WELL
$170B
$3.04M 0.02%
37,154
-17,112
-32% -$1.47M
SHY icon
510
iShares 1-3 Year Treasury Bond ETF
SHY
$25.1B
$3.03M 0.02%
35,765
-32
-0.1% -$2.71K
LGND icon
511
Ligand Pharmaceuticals
LGND
$6.02B
$3.01M 0.02%
46,206
+426
+0.9% +$28.5K
VMC icon
512
Vulcan Materials
VMC
$36.5B
$3M 0.02%
20,870
-9,468
-31% -$1.36M
AMJ
513
DELISTED
JP Morgan Alerian MLP Index ETN 5/24/24
AMJ
$3M 0.02%
137,617
-79,595
-37% -$1.71M
IDV icon
514
iShares International Select Dividend ETF
IDV
$8.48B
$2.99M 0.02%
89,116
-363
-0.4% -$11.7K
AVGOP
515
DELISTED
Broadcom Inc. 8.00% Mandatory Convertible Preferred Stock, Series A
AVGOP
$2.98M 0.02%
+2,533
New +$2.85M
ARWR icon
516
Arrowhead Research
ARWR
$12.1B
$2.98M 0.02%
47,013
+8,493
+22% +$421K
PAA icon
517
Plains All American Pipeline
PAA
$16.6B
$2.98M 0.02%
161,846
-7,659
-5% -$141K
MET icon
518
MetLife
MET
$64.3B
$2.94M 0.02%
57,607
-1,738
-3% -$83.9K
CDXS icon
519
Codexis
CDXS
$159M
$2.93M 0.02%
183,073
-1,517
-0.8% -$22.4K
SPGI icon
520
S&P Global
SPGI
$119B
$2.91M 0.02%
10,664
+259
+2% +$67.3K
EFAV icon
521
iShares MSCI EAFE Min Vol Factor ETF
EFAV
$5.46B
$2.85M 0.01%
38,269
-4,348
-10% -$324K
WCN
522
Waste Connections
WCN
$42.2B
$2.85M 0.01%
31,412
+1,238
+4% +$112K
EWJ icon
523
iShares MSCI Japan ETF
EWJ
$22.5B
$2.84M 0.01%
47,982
+1,382
+3% +$81.4K
YUM icon
524
Yum! Brands
YUM
$41.6B
$2.83M 0.01%
28,127
-134
-0.5% -$13.9K
WWD icon
525
Woodward
WWD
$21.6B
$2.83M 0.01%
23,889
+3,168
+15% +$358K
19 20
21
22 23

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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.