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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
SRG
1076
Seritage Growth Properties
SRG
$136M
$358K ﹤0.01%
8,851
+1
+0% +$42
ORBC
1077
DELISTED
ORBCOMM, Inc.
ORBC
$358K ﹤0.01%
35,144
+12,160
+53% +$128K
EWC icon
1078
iShares MSCI Canada ETF
EWC
$6.13B
$357K ﹤0.01%
12,032
+631
+6% +$18.4K
IDCC icon
1079
InterDigital
IDCC
$7.87B
$353K ﹤0.01%
4,634
+554
+14% +$41.4K
VIAV icon
1080
Viavi Solutions
VIAV
$9.12B
$349K ﹤0.01%
39,904
-64,591
-62% -$585K
LABL
1081
DELISTED
Multi-Color Corp
LABL
$348K ﹤0.01%
4,651
BMS
1082
DELISTED
Bemis
BMS
$348K ﹤0.01%
7,285
-292
-4% -$13.5K
NTES icon
1083
NetEase
NTES
$85.3B
$347K ﹤0.01%
+5,035
New +$314K
PBF icon
1084
PBF Energy
PBF
$8.57B
$347K ﹤0.01%
9,800
-700
-7% -$21.6K
NUE icon
1085
Nucor
NUE
$58.6B
$342K ﹤0.01%
5,371
+782
+17% +$45.7K
QADA
1086
DELISTED
QAD Inc.
QADA
$342K ﹤0.01%
8,793
+120
+1% +$4.51K
NTRI
1087
DELISTED
NutriSystem, Inc.
NTRI
$341K ﹤0.01%
6,480
UA icon
1088
Under Armour Class C
UA
$2.77B
$338K ﹤0.01%
25,383
-14,267
-36% -$187K
ALXN
1089
DELISTED
Alexion Pharmaceuticals
ALXN
$338K ﹤0.01%
2,830
-580
-17% -$70.6K
BMI icon
1090
Badger Meter
BMI
$3.89B
$337K ﹤0.01%
7,053
-1,912
-21% -$88.6K
USPH icon
1091
US Physical Therapy
USPH
$1.2B
$336K ﹤0.01%
+4,655
New +$318K
GEN icon
1092
Gen Digital
GEN
$16.4B
$335K ﹤0.01%
11,946
-64
-0.5% -$1.91K
ATHX
1093
DELISTED
Athersys, Inc. Common Stock
ATHX
$334K ﹤0.01%
7,392
-466
-6% -$22.5K
CNA icon
1094
CNA Financial
CNA
$14.2B
$332K ﹤0.01%
6,262
+3
+0% +$158
TAHO
1095
DELISTED
Tahoe Resources Inc
TAHO
$330K ﹤0.01%
68,950
+4,475
+7% +$21K
AORT icon
1096
Artivion
AORT
$1.3B
$327K ﹤0.01%
17,050
CPE
1097
DELISTED
Callon Petroleum Company
CPE
$327K ﹤0.01%
2,689
+26
+1% +$2.88K
DLX icon
1098
Deluxe
DLX
$1.18B
$326K ﹤0.01%
4,237
ZOES
1099
DELISTED
Zoe's Kitchen, Inc.
ZOES
$326K ﹤0.01%
19,505
-63,621
-77% -$890K
ANIK icon
1100
Anika Therapeutics
ANIK
$258M
$325K ﹤0.01%
6,020
-1,615
-21% -$89.4K

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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.