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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
FDIQ
1501
Invesco Bloomberg Financial Data Providers ETF
FDIQ
$50.3M
$32K ﹤0.01%
595
+1
+0.2% +$52
IEZ icon
1502
iShares US Oil Equipment & Services ETF
IEZ
$367M
$31K ﹤0.01%
1,540
+1,440
+1,440% +$25.9K
EWL icon
1503
iShares MSCI Switzerland ETF
EWL
$2.22B
$30K ﹤0.01%
727
-226
-24% -$8.73K
FGD icon
1504
First Trust Dow Jones Global Select Dividend Index Fund
FGD
$1.58B
$30K ﹤0.01%
1,200
– –
ITEQ icon
1505
Amplify BlueStar Israel Technology ETF
ITEQ
$116M
$30K ﹤0.01%
700
– –
TDTF icon
1506
FlexShares iBoxx 5-Year Target Duration TIPS Index Fund
TDTF
$1.04B
$30K ﹤0.01%
1,189
– –
CZA icon
1507
Invesco Zacks Mid-Cap ETF
CZA
$192M
$28K ﹤0.01%
370
– –
HEZU icon
1508
iShares Currency Hedged MSCI Eurozone ETF
HEZU
$584M
$28K ﹤0.01%
880
– –
SOCL icon
1509
Global X Social Media ETF
SOCL
$93.2M
$28K ﹤0.01%
811
-100
-11% -$3.27K
NEPT
1510
DELISTED
Neptune Wellness Solutions Inc. Ordinary Shares
NEPT
$28K ﹤0.01%
7
– –
EUFN icon
1511
iShares MSCI Europe Financials ETF
EUFN
$4.3B
$27K ﹤0.01%
1,374
+74
+6% +$1.37K
IRIX icon
1512
IRIDEX
IRIX
$14.5M
$27K ﹤0.01%
11,928
-31,672
-73% -$66.9K
OIH icon
1513
VanEck Oil Services ETF
OIH
$1.95B
$27K ﹤0.01%
103
+14
+16% +$3.35K
RXI icon
1514
iShares Global Consumer Discretionary ETF
RXI
$275M
$27K ﹤0.01%
215
– –
IBDQ
1515
DELISTED
iShares iBonds Dec 2025 Term Corporate ETF
IBDQ
$26K ﹤0.01%
1,000
– –
IDEV icon
1516
iShares Core MSCI International Developed Markets ETF
IDEV
$32.4B
$26K ﹤0.01%
447
+397
+794% +$22.5K
PZA icon
1517
Invesco National AMT-Free Municipal Bond ETF
PZA
$4.25B
$26K ﹤0.01%
966
– –
TOVX icon
1518
Theriva Biologics
TOVX
$10.6M
$26K ﹤0.01%
205
-7
-3% -$745
XHS icon
1519
State Street SPDR S&P Health Care Services ETF
XHS
$207M
$26K ﹤0.01%
355
+1
+0.3% +$68
BOND icon
1520
PIMCO Active Bond Exchange-Traded Fund
BOND
$8.47B
$25K ﹤0.01%
231
– –
INOD icon
1521
Innodata
INOD
$2.24B
$25K ﹤0.01%
22,000
– –
ISCG icon
1522
iShares Morningstar Small-Cap Growth ETF
ISCG
$1B
$25K ﹤0.01%
720
-210
-23% -$7.12K
PFFD icon
1523
Global X US Preferred ETF
PFFD
$2.17B
$25K ﹤0.01%
1,000
– –
NEOS
1524
DELISTED
Neos Therapeutics, Inc
NEOS
$25K ﹤0.01%
+16,400
New +$24.6K
EQAL icon
1525
Invesco Russell 1000 Equal Weight ETF
EQAL
$831M
$24K ﹤0.01%
697
– –
59 60
61
62 63

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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.