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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
MCO icon
326
Moody's
MCO
$82.8B
$4.82M 0.04%
43,094
-171
-0.4% -$18.3K
IWS icon
327
iShares Russell Mid-Cap Value ETF
IWS
$15.6B
$4.79M 0.04%
57,039
+729
+1% +$60.2K
FMSA
328
DELISTED
Fairmount Santrol Holdings Inc.
FMSA
$4.79M 0.04%
505,478
-7,905
-2% -$82.4K
LQD icon
329
iShares iBoxx $ Investment Grade Corporate Bond ETF
LQD
$34.3B
$4.79M 0.04%
40,443
+607
+2% +$71.3K
MDLZ icon
330
Mondelez International
MDLZ
$79.5B
$4.78M 0.04%
109,013
+20,123
+23% +$892K
BGS icon
331
B&G Foods
BGS
$287M
$4.76M 0.04%
111,970
-345
-0.3% -$15K
NWL icon
332
Newell Brands
NWL
$2.38B
$4.74M 0.04%
99,480
-22,790
-19% -$1.08M
HYMB icon
333
State Street SPDR Nuveen ICE High Yield Municipal Bond ETF
HYMB
$3.09B
$4.67M 0.04%
164,518
-14,588
-8% -$411K
XLI icon
334
State Street Industrial Select Sector SPDR ETF
XLI
$32.8B
$4.64M 0.04%
71,345
-1,200
-2% -$77.5K
TECH icon
335
Bio-Techne
TECH
$11.2B
$4.59M 0.04%
180,448
+500
+0.3% +$12.9K
MU icon
336
Micron Technology
MU
$930B
$4.59M 0.04%
195,793
+5,326
+3% +$130K
XLU icon
337
State Street Utilities Select Sector SPDR ETF
XLU
$22.8B
$4.52M 0.04%
174,730
+47,346
+37% +$1.18M
BIIB icon
338
Biogen
BIIB
$30B
$4.5M 0.04%
15,898
-8,225
-34% -$2.33M
GLW icon
339
Corning
GLW
$119B
$4.47M 0.04%
163,523
+4,579
+3% +$122K
UL icon
340
Unilever
UL
$137B
$4.45M 0.04%
81,902
+23,562
+40% +$1.19M
IRDM icon
341
Iridium Communications
IRDM
$5.02B
$4.44M 0.04%
510,644
+420
+0.1% +$4.01K
JBTM
342
JBT Marel
JBTM
$7.21B
$4.39M 0.04%
49,908
-12,126
-20% -$1.05M
SYY icon
343
Sysco
SYY
$40.8B
$4.37M 0.04%
83,474
-373
-0.4% -$19.8K
EQIX icon
344
Equinix
EQIX
$101B
$4.36M 0.04%
11,521
+1,092
+10% +$415K
HEFA icon
345
iShares Currency Hedged MSCI EAFE ETF
HEFA
$7.5B
$4.35M 0.04%
162,167
-14,521
-8% -$390K
EPAY
346
DELISTED
Bottomline Technologies Inc
EPAY
$4.32M 0.03%
173,151
+598
+0.3% +$15.1K
EL icon
347
Estee Lauder
EL
$30.4B
$4.29M 0.03%
51,788
+27,443
+113% +$2.27M
MAIN icon
348
Main Street Capital
MAIN
$5.06B
$4.26M 0.03%
+115,091
New +$4.25M
VB icon
349
Vanguard Morningstar Small-Cap ETF
VB
$79.5B
$4.25M 0.03%
31,739
-444
-1% -$58.7K
PETX
350
DELISTED
Aratana Therapeutics, Inc.
PETX
$4.25M 0.03%
667,163
+51,692
+8% +$349K
12 13
14
15 16

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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.