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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
+7.4%
1 Year Est. Return
+18.88%
3 Year Est. Return
+73.84%
5 Year Est. Return
+90.13%
10 Year Est. Return
+512.03%
AUM
$14.7B
AUM Growth
+$1.4B
Cap. Flow
+$534M
Cap. Flow %
3.62%
Top 10 Hldgs %
19%
Holding
1,488
New
131
Increased
528
Reduced
556
Closed
127

Top Sells

Rank Stock Value
1
ZD icon
Ziff Davis
ZD
+$22.1M
2
GE icon
GE Aerospace
GE
+$19.1M
3
EFX icon
Equifax
EFX
+$17.7M
4
NUVA
NuVasive, Inc.
NUVA
+$17.1M
5
WBA
Walgreens Boots Alliance
WBA
+$13.6M

Sector Composition

Rank Sector Weight
1 Healthcare 17.74%
2 Technology 17.58%
3 Financials 14.76%
4 Industrials 10.83%
5 Consumer Discretionary 9.09%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow
IGSB icon
676
iShares 1-5 Year Investment Grade Corporate Bond ETF
IGSB
$23B
$1.28M 0.01%
24,500
-300
-1% -$15.7K
DHS icon
677
WisdomTree US High Dividend Fund
DHS
$1.56B
$1.28M 0.01%
17,548
-1,005
-5% -$71.8K
XLP icon
678
State Street Consumer Staples Select Sector SPDR ETF
XLP
$14.2B
$1.28M 0.01%
22,454
-1,335
-6% -$73.4K
OKTA icon
679
Okta
OKTA
$24.7B
$1.27M 0.01%
+49,705
New +$1.39M
TEVA icon
680
Teva Pharmaceuticals
TEVA
$40.8B
$1.27M 0.01%
67,177
-10,626
-14% -$160K
SRCLP
681
DELISTED
Stericycle, Inc
SRCLP
$1.27M 0.01%
+24,025
New +$1.3M
UAA icon
682
Under Armour
UAA
$2.84B
$1.26M 0.01%
87,691
+50,757
+137% +$733K
MSI icon
683
Motorola Solutions
MSI
$72.3B
$1.25M 0.01%
13,857
-99
-0.7% -$9.02K
CNO icon
684
CNO Financial Group
CNO
$5.14B
$1.25M 0.01%
50,600
-7,200
-12% -$176K
CDXS icon
685
Codexis
CDXS
$151M
$1.25M 0.01%
149,247
-146,630
-50% -$1.01M
THRM icon
686
Gentherm
THRM
$1.25B
$1.24M 0.01%
38,995
-34,940
-47% -$1.21M
SYF icon
687
Synchrony
SYF
$24.7B
$1.24M 0.01%
32,004
-6,136
-16% -$210K
AOI
688
DELISTED
Alliance One International
AOI
$1.24M 0.01%
+93,300
New +$1.16M
DSI icon
689
iShares MSCI KLD 400 Social ETF
DSI
$5.3B
$1.24M 0.01%
25,146
+400
+2% +$19.2K
LEN icon
690
Lennar Class A
LEN
$19.8B
$1.23M 0.01%
20,124
+486
+2% +$27.6K
HOLX
691
DELISTED
Hologic
HOLX
$1.23M 0.01%
28,679
+12,205
+74% +$487K
PAYC icon
692
Paycom
PAYC
$7.64B
$1.22M 0.01%
15,185
+3,175
+26% +$254K
CINF icon
693
Cincinnati Financial
CINF
$27.3B
$1.22M 0.01%
16,208
-1,489
-8% -$111K
CXO
694
DELISTED
CONCHO RESOURCES INC.
CXO
$1.22M 0.01%
8,087
+1,918
+31% +$267K
ADSK icon
695
Autodesk
ADSK
$49.5B
$1.21M 0.01%
11,540
-490
-4% -$57.1K
SCZ icon
696
iShares MSCI EAFE Small-Cap ETF
SCZ
$13.4B
$1.21M 0.01%
18,700
+743
+4% +$46.8K
PRU icon
697
Prudential Financial
PRU
$42.4B
$1.2M 0.01%
10,474
+602
+6% +$67.6K
UMH
698
UMH Properties
UMH
$1.29B
$1.2M 0.01%
80,730
+7,060
+10% +$107K
CSRA
699
DELISTED
CSRA Inc.
CSRA
$1.2M 0.01%
40,188
-10,754
-21% -$325K
CTRA
700
DELISTED
Coterra Energy
CTRA
$1.2M 0.01%
41,911
+20,166
+93% +$554K

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William Blair & Company's Q4 2017 Portfolio in Review

As of Q4 2017, William Blair & Company held 1,488 positions worth $14.7B, up 10% from $13.3B the previous quarter. Its ten largest holdings account for 19% of the portfolio.

William Blair & Company deployed $534M of net new capital in Q4 2017, opening 131 new positions and adding to 528 existing holdings. Its largest new stake was Dynavax Technologies: 1,980,526 shares worth $37M.

By sector, the portfolio is most concentrated in Healthcare at 18% of assets, down from 19% a quarter earlier, followed by Technology and Financials.

On the sell side, the largest reduction was Ziff Davis, an estimated $22.1M trimmed.

  • William Blair & Company's largest Q4 2017 buy was Dynavax Technologies: 1,980,526 shares worth $37M.
  • William Blair & Company added most to Alphabet (Google) Class C in Q4 2017, an estimated $138M increase.
  • William Blair & Company's biggest Q4 2017 reduction was Ziff Davis, cutting an estimated $22.1M.
  • William Blair & Company fully exited Bob Evans Farms, Inc. in Q4 2017, selling an estimated $12.5M.
  • William Blair & Company's ten largest holdings make up 19% of its $14.7B portfolio in Q4 2017.
  • William Blair & Company opened 131 new positions and closed 127 in Q4 2017.
  • William Blair & Company's portfolio value rose 10% quarter-over-quarter to $14.7B.

Based on William Blair & Company's 13F filing for Q4 2017, filed 14 Feb 2018.