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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 Buys

Rank Stock Value
1
GOOG icon
Alphabet (Google) Class C
GOOG
+$138M
2
GOOGL icon
Alphabet (Google) Class A
GOOGL
+$63.1M
3
DVAX
Dynavax Technologies
DVAX
+$39.8M
4
VEU icon
Vanguard FTSE All-World ex-US ETF
VEU
+$27.3M
5
VEEV icon
Veeva Systems
VEEV
+$16.3M

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
CHTR icon
976
Charter Communications
CHTR
$17.3B
$485K ﹤0.01%
+1,443
New +$490K
PODD icon
977
Insulet
PODD
$11.5B
$484K ﹤0.01%
7,010
-3,275
-32% -$215K
DAL icon
978
Delta Air Lines
DAL
$57.5B
$483K ﹤0.01%
8,625
+127
+1% +$6.63K
NVTA
979
DELISTED
Invitae Corporation
NVTA
$480K ﹤0.01%
52,873
-9,000
-15% -$80.7K
GEF icon
980
Greif
GEF
$4.92B
$478K ﹤0.01%
7,892
+200
+3% +$11.4K
GDOT icon
981
Green Dot
GDOT
$743M
$477K ﹤0.01%
7,920
– –
FEZ icon
982
State Street SPDR EURO STOXX 50 ETF
FEZ
$4.42B
$476K ﹤0.01%
11,703
+300
+3% +$12.4K
CNH
983
CNH Industrial
CNH
$12.7B
$473K ﹤0.01%
40,560
-2,872
-7% -$31.8K
AWK icon
984
American Water Works
AWK
$26.7B
$470K ﹤0.01%
5,134
+425
+9% +$37.6K
AXS icon
985
AXIS Capital
AXS
$7.68B
$468K ﹤0.01%
9,319
+11
+0.1% +$586
BOOT icon
986
Boot Barn
BOOT
$4.51B
$468K ﹤0.01%
28,160
– –
GXP
987
DELISTED
Great Plains Energy Incorporated
GXP
$467K ﹤0.01%
14,490
+100
+0.7% +$3.29K
BAC.PRL icon
988
Bank of America Series L
BAC.PRL
$3.97B
$466K ﹤0.01%
354
+177
+100% +$233K
RVNC
989
DELISTED
Revance Therapeutics, Inc.
RVNC
$463K ﹤0.01%
+12,950
New +$372K
AMN icon
990
AMN Healthcare
AMN
$1.3B
$462K ﹤0.01%
9,389
-190
-2% -$8.66K
TSN icon
991
Tyson Foods
TSN
$20.4B
$460K ﹤0.01%
5,677
-700
-11% -$53.6K
BY icon
992
Byline Bancorp
BY
$1.78B
$459K ﹤0.01%
20,000
– –
ERF
993
DELISTED
Enerplus Corporation
ERF
$454K ﹤0.01%
46,344
-3,285
-7% -$30K
SCHB icon
994
Schwab US Broad Market ETF
SCHB
$43.2B
$449K ﹤0.01%
41,790
-4,836
-10% -$50.7K
ING icon
995
ING
ING
$99.8B
$448K ﹤0.01%
24,267
-883
-4% -$16.2K
EMLP icon
996
First Trust North American Energy Infrastructure Fund
EMLP
$4.11B
$447K ﹤0.01%
18,186
-499
-3% -$12.3K
WHR icon
997
Whirlpool
WHR
$2.43B
$446K ﹤0.01%
2,645
-259
-9% -$43.9K
FDN icon
998
First Trust Dow Jones Internet Index Fund ETF
FDN
$5.12B
$445K ﹤0.01%
4,051
-224
-5% -$24.1K
SUPN icon
999
Supernus Pharmaceuticals
SUPN
$2.59B
$445K ﹤0.01%
11,171
+4,161
+59% +$164K
UAL icon
1000
United Airlines
UAL
$39.4B
$445K ﹤0.01%
6,598
+1,020
+18% +$63.6K
38 39
40
41 42

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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.