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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
NATI
701
DELISTED
National Instruments Corp
NATI
$1.19M 0.01%
28,468
-5,213
-15% -$228K
DCI icon
702
Donaldson
DCI
$10.9B
$1.18M 0.01%
24,116
– –
FSV icon
703
FirstService
FSV
$6.48B
$1.18M 0.01%
16,873
+43
+0.3% +$2.96K
VSM
704
DELISTED
Versum Materials, Inc.
VSM
$1.18M 0.01%
31,175
+13,329
+75% +$520K
DLB icon
705
Dolby
DLB
$5.51B
$1.18M 0.01%
19,016
-5,568
-23% -$336K
HEDJ icon
706
WisdomTree Europe Hedged Equity Fund
HEDJ
$1.83B
$1.17M 0.01%
36,734
+3,526
+11% +$115K
SUI icon
707
Sun Communities
SUI
$15.2B
$1.17M 0.01%
12,555
-675
-5% -$61.9K
GGG icon
708
Graco
GGG
$12.9B
$1.16M 0.01%
25,731
-1,827
-7% -$79.1K
APU
709
DELISTED
AmeriGas Partners, L.P.
APU
$1.16M 0.01%
24,995
-2,079
-8% -$93.6K
SHOO icon
710
Steven Madden
SHOO
$3.37B
$1.15M 0.01%
37,049
-48,327
-57% -$1.35M
BSX icon
711
Boston Scientific
BSX
$69.5B
$1.15M 0.01%
46,184
+728
+2% +$20.1K
WTRG icon
712
Essential Utilities
WTRG
$11.3B
$1.13M 0.01%
28,749
-435
-1% -$15.9K
APTS
713
DELISTED
Preferred Apartment Communities, Inc.
APTS
$1.12M 0.01%
55,459
-3,525
-6% -$72.5K
ACRS icon
714
Aclaris Therapeutics
ACRS
$726M
$1.12M 0.01%
45,447
+30,975
+214% +$754K
AIG icon
715
American International
AIG
$41.7B
$1.12M 0.01%
18,802
-13,344
-42% -$820K
LHX icon
716
L3Harris
LHX
$51.6B
$1.12M 0.01%
7,901
-116
-1% -$16.2K
WAT icon
717
Waters Corp
WAT
$37B
$1.11M 0.01%
5,771
-210
-4% -$40.5K
RDS.B
718
DELISTED
Royal Dutch Shell PLC ADS Class B
RDS.B
$1.11M 0.01%
16,321
+905
+6% +$58.7K
SPH icon
719
Suburban Propane Partners
SPH
$1.24B
$1.11M 0.01%
45,685
-1,500
-3% -$37.4K
CY
720
DELISTED
Cypress Semiconductor
CY
$1.1M 0.01%
72,300
+2,500
+4% +$39.7K
ACHC icon
721
Acadia Healthcare
ACHC
$2.76B
$1.1M 0.01%
33,642
-17,633
-34% -$611K
CBI
722
DELISTED
Chicago Bridge & Iron Nv
CBI
$1.1M 0.01%
68,012
-16,605
-20% -$271K
LYV icon
723
Live Nation Entertainment
LYV
$40.6B
$1.1M 0.01%
25,752
+15,693
+156% +$683K
VIS icon
724
Vanguard Industrials ETF
VIS
$8.1B
$1.09M 0.01%
7,686
+123
+2% +$16.9K
CALD
725
DELISTED
Callidus Software, Inc.
CALD
$1.09M 0.01%
38,017
-45,302
-54% -$1.24M
27 28
29
30 31

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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.