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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
-13.3%
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
$13.7B
AUM Growth
-$2.6B
Cap. Flow
-$222M
Cap. Flow %
-1.61%
Top 10 Hldgs %
20.6%
Holding
1,859
New
191
Increased
555
Reduced
650
Closed
205

Top Buys

Rank Stock Value
1
LIN icon
Linde
LIN
+$55.6M
2
EFA icon
iShares MSCI EAFE ETF
EFA
+$22.8M
3
ULTA icon
Ulta Beauty
ULTA
+$22.1M
4
INTU icon
Intuit
INTU
+$22M
5
DIS icon
Walt Disney
DIS
+$21.1M

Sector Composition

Rank Sector Weight
1 Technology 20.75%
2 Healthcare 18.42%
3 Financials 12.76%
4 Consumer Discretionary 9.45%
5 Industrials 9.06%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow
TOVX icon
1451
Theriva Biologics
TOVX
$10.3M
$25K ﹤0.01%
+178
New +$42.3K
NEPT
1452
DELISTED
Neptune Wellness Solutions Inc. Ordinary Shares
NEPT
$25K ﹤0.01%
+7
New +$34K
IBDQ
1453
DELISTED
iShares iBonds Dec 2025 Term Corporate ETF
IBDQ
$24K ﹤0.01%
1,000
PZA icon
1454
Invesco National AMT-Free Municipal Bond ETF
PZA
$4.25B
$24K ﹤0.01%
966
SMMD icon
1455
iShares Russell 2500 ETF
SMMD
$3.66B
$24K ﹤0.01%
+640
New +$27.2K
BSJL
1456
DELISTED
Invesco BulletShares 2021 High Yield Corporate Bond ETF
BSJL
$24K ﹤0.01%
+1,000
New +$24.3K
EWS icon
1457
iShares MSCI Singapore ETF
EWS
$1.06B
$23K ﹤0.01%
1,020
FTSL icon
1458
First Trust Senior Loan Fund ETF
FTSL
$2.33B
$23K ﹤0.01%
497
-4,975
-91% -$236K
ISCV icon
1459
iShares Morningstar Small-Cap Value ETF
ISCV
$701M
$23K ﹤0.01%
480
NFRA icon
1460
FlexShares STOXX Global Broad Infrastructure Index Fund
NFRA
$3.01B
$23K ﹤0.01%
+500
New +$22.7K
OIH icon
1461
VanEck Oil Services ETF
OIH
$1.94B
$23K ﹤0.01%
82
-64
-44% -$25.3K
PFFD icon
1462
Global X US Preferred ETF
PFFD
$2.16B
$23K ﹤0.01%
1,000
SCHR
1463
Schwab Intermediately-Term US Treasury ETF
SCHR
$13.3B
$23K ﹤0.01%
+850
New +$22.1K
XPH icon
1464
State Street SPDR S&P Pharmaceuticals ETF
XPH
$506M
$23K ﹤0.01%
532
CZA icon
1465
Invesco Zacks Mid-Cap ETF
CZA
$192M
$22K ﹤0.01%
+370
New +$23.7K
EUFN icon
1466
iShares MSCI Europe Financials ETF
EUFN
$4.26B
$22K ﹤0.01%
1,300
-1,279
-50% -$23.5K
ITEQ icon
1467
Amplify BlueStar Israel Technology ETF
ITEQ
$116M
$22K ﹤0.01%
700
-300
-30% -$9.93K
LIT icon
1468
Global X Lithium & Battery Tech ETF
LIT
$1.56B
$22K ﹤0.01%
+800
New +$24.3K
SRRA
1469
DELISTED
Sierra Oncology, Inc. Common Stock
SRRA
$22K ﹤0.01%
423
EEMS icon
1470
iShares MSCI Emerging Markets Small-Cap ETF
EEMS
$371M
$21K ﹤0.01%
500
-1,000
-67% -$42.6K
EZA icon
1471
iShares MSCI South Africa ETF
EZA
$568M
$21K ﹤0.01%
296
IHE icon
1472
iShares US Pharmaceuticals ETF
IHE
$1.64B
$21K ﹤0.01%
+420
New +$21.5K
ARC
1473
DELISTED
ARC Document Solutions, Inc.
ARC
$21K ﹤0.01%
10,000
EWG icon
1474
iShares MSCI Germany ETF
EWG
$1.61B
$20K ﹤0.01%
750
-1,023
-58% -$27.7K
FXU icon
1475
First Trust Utilities AlphaDEX Fund
FXU
$821M
$20K ﹤0.01%
748
+178
+31% +$4.98K

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William Blair & Company's Q4 2018 Portfolio in Review

As of Q4 2018, William Blair & Company held 1,859 positions worth $13.7B, down 16% from $16.3B the previous quarter. Its ten largest holdings account for 21% of the portfolio.

William Blair & Company's Q4 2018 filing shows 191 new, 555 increased, 650 reduced and 205 closed positions. Its largest new stake was Linde: 352,000 shares worth $54.9M. The largest sale was Praxair Inc, an estimated $73.7M.

By sector, the portfolio is most concentrated in Technology at 21% of assets, down from 21% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q4 2018 buy was Linde: 352,000 shares worth $54.9M.
  • William Blair & Company added most to iShares MSCI EAFE ETF in Q4 2018, an estimated $22.8M increase.
  • William Blair & Company's biggest Q4 2018 reduction was Red Hat Inc, cutting an estimated $46M.
  • William Blair & Company fully exited Praxair Inc in Q4 2018, selling an estimated $73.7M.
  • William Blair & Company's ten largest holdings make up 21% of its $13.7B portfolio in Q4 2018.
  • William Blair & Company opened 191 new positions and closed 205 in Q4 2018.
  • William Blair & Company's portfolio value fell 16% quarter-over-quarter to $13.7B.

Based on William Blair & Company's 13F filing for Q4 2018, filed 14 Feb 2019.