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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
+8.77%
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
$12.4B
AUM Growth
+$1.23B
Cap. Flow
+$420M
Cap. Flow %
3.39%
Top 10 Hldgs %
17.91%
Holding
1,607
New
193
Increased
600
Reduced
460
Closed
133

Top Buys

Rank Stock Value
1
WAB icon
Wabtec
WAB
+$31.4M
2
GOOGL icon
Alphabet (Google) Class A
GOOGL
+$28.5M
3
VIG icon
Vanguard Dividend Appreciation ETF
VIG
+$26M
4
VEEV icon
Veeva Systems
VEEV
+$25M
5
PGR icon
Progressive
PGR
+$20.8M

Top Sells

Rank Stock Value
1
IDXX icon
Idexx Laboratories
IDXX
+$32.3M
2
MJN
Mead Johnson Nutrition Company
MJN
+$27.1M
3
TSCO icon
Tractor Supply
TSCO
+$23M
4
WM icon
Waste Management
WM
+$19.1M
5
TDG icon
TransDigm Group
TDG
+$16.5M

Sector Composition

Rank Sector Weight
1 Healthcare 18.3%
2 Technology 16.24%
3 Financials 13.61%
4 Industrials 11.16%
5 Consumer Discretionary 9.51%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
PH icon
351
Parker-Hannifin
PH
$124B
$4.21M 0.03%
27,179
+23,379
+615% +$3.55M
XLNX
352
DELISTED
Xilinx Inc
XLNX
$4.19M 0.03%
72,345
-784
-1% -$46.1K
GRUB
353
DELISTED
Just Eat Takeaway.com N.V. American Depositary Shares
GRUB
$4.19M 0.03%
60,110
+3,595
+6% +$265K
RHI icon
354
Robert Half
RHI
$4.02B
$4.18M 0.03%
86,417
-2,267
-3% -$110K
HAL icon
355
Halliburton
HAL
$26.7B
$4.17M 0.03%
79,203
+2,556
+3% +$137K
GDX icon
356
VanEck Gold Miners ETF
GDX
$23B
$4.17M 0.03%
182,675
+37,823
+26% +$880K
AGG icon
357
iShares Core US Aggregate Bond ETF
AGG
$137B
$4.13M 0.03%
37,939
+344
+0.9% +$37.2K
NKTR icon
358
Nektar Therapeutics
NKTR
$2.34B
$4.12M 0.03%
20,916
-1,474
-7% -$331K
LFUS icon
359
Littelfuse
LFUS
$11.2B
$4.11M 0.03%
25,692
+14,399
+128% +$2.28M
III icon
360
Information Services Group
III
$203M
$4.1M 0.03%
1,294,629
+23,050
+2% +$75.8K
YUM icon
361
Yum! Brands
YUM
$40.9B
$4.08M 0.03%
63,572
-109
-0.2% -$7.1K
SEP
362
DELISTED
Spectra Engy Parters Lp
SEP
$4.08M 0.03%
91,559
-54
-0.1% -$2.41K
IWB icon
363
iShares Russell 1000 ETF
IWB
$48.9B
$4.06M 0.03%
30,856
+15,349
+99% +$1.99M
MUB icon
364
iShares National Muni Bond ETF
MUB
$45.2B
$4.04M 0.03%
37,095
-5,200
-12% -$564K
RAMP icon
365
LiveRamp
RAMP
$2.3B
$4.02M 0.03%
141,243
+73,707
+109% +$2.05M
EFG icon
366
iShares MSCI EAFE Growth ETF
EFG
$16.7B
$4.01M 0.03%
58,481
-89
-0.2% -$5.96K
RPD icon
367
Rapid7
RPD
$682M
$4M 0.03%
264,159
-3,065
-1% -$42.8K
DBEF icon
368
Xtrackers MSCI EAFE Hedged Equity ETF
DBEF
$9.19B
$3.88M 0.03%
134,704
+43,704
+48% +$1.26M
KMI.PRA
369
DELISTED
Kinder Morgan, Inc.
KMI.PRA
$3.87M 0.03%
79,355
+9,063
+13% +$445K
KRE icon
370
State Street SPDR S&P Regional Banking ETF
KRE
$4.67B
$3.86M 0.03%
67,695
+607
+0.9% +$34K
ET icon
371
Energy Transfer Partners
ET
$70B
$3.86M 0.03%
204,522
+19,418
+10% +$366K
GM icon
372
General Motors
GM
$79.4B
$3.84M 0.03%
104,208
+9,414
+10% +$344K
RDS.A
373
DELISTED
Royal Dutch Shell PLC ADS Class A
RDS.A
$3.83M 0.03%
73,319
+9,767
+15% +$523K
DD
374
DELISTED
Du Pont De Nemours E I
DD
$3.82M 0.03%
48,187
-5,902
-11% -$458K
SBAC icon
375
SBA Communications
SBAC
$19.2B
$3.79M 0.03%
31,537
+462
+1% +$51K
13 14
15
16 17

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William Blair & Company's Q1 2017 Portfolio in Review

As of Q1 2017, William Blair & Company held 1,607 positions worth $12.4B, up 11% from $11.2B the previous quarter. Its ten largest holdings account for 18% of the portfolio.

William Blair & Company deployed $420M of net new capital in Q1 2017, opening 193 new positions and adding to 600 existing holdings. Its largest new stake was Park-Ohio Holdings: 200,527 shares worth $8.95M.

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

On the sell side, the largest reduction was Idexx Laboratories, an estimated $32.3M trimmed.

  • William Blair & Company's largest Q1 2017 buy was Park-Ohio Holdings: 200,527 shares worth $8.95M.
  • William Blair & Company added most to Wabtec in Q1 2017, an estimated $31.4M increase.
  • William Blair & Company's biggest Q1 2017 reduction was Idexx Laboratories, cutting an estimated $32.3M.
  • William Blair & Company fully exited Hennessy Capital Acquisition Corp. Unit in Q1 2017, selling an estimated $5.55M.
  • William Blair & Company's ten largest holdings make up 18% of its $12.4B portfolio in Q1 2017.
  • William Blair & Company opened 193 new positions and closed 133 in Q1 2017.
  • William Blair & Company's portfolio value rose 11% quarter-over-quarter to $12.4B.

Based on William Blair & Company's 13F filing for Q1 2017, filed 10 May 2017.