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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
FRC
826
DELISTED
First Republic Bank
FRC
$840K ﹤0.01%
7,152
+2,227
+45% +$241K
QYLD icon
827
Global X NASDAQ-100 Covered Call ETF
QYLD
$8.26B
$835K ﹤0.01%
35,374
-5,547
-14% -$129K
PYX
828
DELISTED
Pyxus International, Inc.
PYX
$834K ﹤0.01%
93,300
– –
VDC icon
829
Vanguard Consumer Staples ETF
VDC
$7.99B
$832K ﹤0.01%
5,161
+42
+0.8% +$6.59K
LRCX icon
830
Lam Research
LRCX
$390B
$831K ﹤0.01%
28,430
+920
+3% +$24.4K
OXY icon
831
Occidental Petroleum
OXY
$55.9B
$825K ﹤0.01%
20,016
-5,347
-21% -$214K
REGL icon
832
ProShares S&P MidCap 400 Dividend Aristocrats ETF
REGL
$1.82B
$822K ﹤0.01%
13,649
+2,255
+20% +$133K
LNT icon
833
Alliant Energy
LNT
$18B
$819K ﹤0.01%
14,959
-100
-0.7% -$5.31K
SLCA
834
DELISTED
U.S. SILICA HOLDINGS, INC.
SLCA
$817K ﹤0.01%
132,815
-12,675
-9% -$76.5K
OLED icon
835
Universal Display
OLED
$4.19B
$807K ﹤0.01%
3,914
-100
-2% -$18.9K
PCAR icon
836
PACCAR
PCAR
$70.1B
$806K ﹤0.01%
15,278
+141
+0.9% +$7.25K
CCK icon
837
Crown Holdings
CCK
$13.1B
$805K ﹤0.01%
+11,104
New +$792K
DLR icon
838
Digital Realty Trust
DLR
$71.7B
$799K ﹤0.01%
6,675
+643
+11% +$79.1K
WSM icon
839
Williams-Sonoma
WSM
$29.6B
$799K ﹤0.01%
21,772
+112
+0.5% +$3.89K
IEUR icon
840
iShares Core MSCI Europe ETF
IEUR
$9.16B
$798K ﹤0.01%
16,000
+15,846
+10,290% +$755K
CNQ icon
841
Canadian Natural Resources
CNQ
$94.9B
$794K ﹤0.01%
50,090
+571
+1% +$7.76K
OVID icon
842
Ovid Therapeutics
OVID
$491M
$790K ﹤0.01%
+190,253
New +$601K
VONE icon
843
Vanguard Russell 1000 ETF
VONE
$8.58B
$787K ﹤0.01%
5,337
– –
WU icon
844
Western Union
WU
$2.21B
$786K ﹤0.01%
29,351
+217
+0.7% +$5.63K
CRL icon
845
Charles River Laboratories
CRL
$12.8B
$785K ﹤0.01%
+5,142
New +$712K
FDS icon
846
Factset
FDS
$10.2B
$777K ﹤0.01%
2,896
-232
-7% -$59.6K
TER icon
847
Teradyne
TER
$59.3B
$769K ﹤0.01%
11,275
+202
+2% +$12.8K
NI icon
848
NiSource
NI
$20.4B
$768K ﹤0.01%
27,600
+4,106
+17% +$113K
RDS.B
849
DELISTED
Royal Dutch Shell PLC ADS Class B
RDS.B
$763K ﹤0.01%
12,724
-12,842
-50% -$756K
BMY.RT
850
DELISTED
Bristol-Myers Squibb Company Contingent Value Rights
BMY.RT
$762K ﹤0.01%
+253,014
New +$658K
32 33
34
35 36

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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.