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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
JNK icon
876
State Street SPDR Bloomberg High Yield Bond ETF
JNK
$6.9B
$534K ﹤0.01%
4,778
-540
-10% -$59.6K
AMZN icon
877
CALL
Amazon
AMZN
$3.06T
$532K ﹤0.01%
12,000
-20,000
-63% -$834K
LUV icon
878
Southwest Airlines
LUV
$23B
$532K ﹤0.01%
9,243
-2,000
-18% -$108K
CI icon
879
Cigna
CI
$74.5B
$530K ﹤0.01%
3,617
– –
HOLX
880
DELISTED
Hologic
HOLX
$527K ﹤0.01%
12,930
+2,650
+26% +$108K
CGNX icon
881
Cognex
CGNX
$11.2B
$525K ﹤0.01%
13,152
-3,822
-23% -$140K
ST icon
882
Sensata Technologies
ST
$6.81B
$525K ﹤0.01%
+12,088
New +$507K
CBI
883
CALL
DELISTED
Chicago Bridge & Iron Nv
CBI
$523K ﹤0.01%
17,000
+16,600
+4,150% +$536K
TNL icon
884
Travel + Leisure Co
TNL
$4.72B
$522K ﹤0.01%
13,717
-63
-0.5% -$2.31K
BECN
885
DELISTED
Beacon Roofing Supply, Inc.
BECN
$521K ﹤0.01%
10,947
-2,370
-18% -$109K
BSCK
886
DELISTED
Invesco BulletShares 2020 Corporate Bond ETF
BSCK
$520K ﹤0.01%
24,300
+2,000
+9% +$42.6K
OVV icon
887
Ovintiv
OVV
$17.1B
$518K ﹤0.01%
8,871
+141
+2% +$8.45K
XCRA
888
DELISTED
Xcerra Corporation
XCRA
$516K ﹤0.01%
59,000
-628
-1% -$5.18K
MLVF
889
DELISTED
Malvern Bancorp, Inc.
MLVF
$515K ﹤0.01%
25,000
– –
VG
890
DELISTED
Vonage Holdings Corporation
VG
$513K ﹤0.01%
85,151
-30,398
-26% -$202K
RBC icon
891
RBC Bearings
RBC
$18B
$504K ﹤0.01%
5,225
-180
-3% -$16.7K
CVSA
892
Covista Inc
CVSA
$4.34B
$499K ﹤0.01%
14,161
+402
+3% +$13.3K
PRGO icon
893
CALL
Perrigo
PRGO
$1.48B
$498K ﹤0.01%
7,500
+7,400
+7,400% +$563K
TM icon
894
Toyota
TM
$220B
$498K ﹤0.01%
4,525
-803
-15% -$92.2K
DSGR icon
895
Distribution Solutions Group
DSGR
$1.6B
$497K ﹤0.01%
40,262
+14,000
+53% +$174K
ERF
896
DELISTED
Enerplus Corporation
ERF
$497K ﹤0.01%
58,207
+32,178
+124% +$283K
WPM icon
897
Wheaton Precious Metals
WPM
$50.8B
$496K ﹤0.01%
24,330
-645
-3% -$13.4K
RH icon
898
CALL
RH
RH
$3.29B
$495K ﹤0.01%
+10,700
New +$331K
TRU icon
899
TransUnion
TRU
$15.3B
$495K ﹤0.01%
13,207
-10,997
-45% -$386K
EMLP icon
900
First Trust North American Energy Infrastructure Fund
EMLP
$4.13B
$494K ﹤0.01%
19,490
+4,237
+28% +$107K
34 35
36
37 38

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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.