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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
MACK
726
DELISTED
Merrimack Pharmaceuticals, Inc.
MACK
$918K 0.01%
38,016
-953
-2% -$23.8K
RNET
727
DELISTED
RigNet, Inc.
RNET
$915K 0.01%
51,765
+775
+2% +$15.4K
STGW icon
728
Stagwell
STGW
$2.13B
$903K 0.01%
103,150
-9,225
-8% -$72.6K
LHX icon
729
L3Harris
LHX
$51.7B
$901K 0.01%
8,198
+473
+6% +$50.6K
HXL icon
730
Hexcel
HXL
$7.73B
$896K 0.01%
16,359
+105
+0.6% +$5.52K
TSN icon
731
Tyson Foods
TSN
$21B
$895K 0.01%
14,481
+189
+1% +$11.9K
BETR
732
DELISTED
Amplify Snack Brands, Inc.
BETR
$891K 0.01%
104,615
-54,375
-34% -$523K
BKLN icon
733
Invesco Senior Loan ETF
BKLN
$6.78B
$888K 0.01%
38,105
+27,450
+258% +$640K
LNT icon
734
Alliant Energy
LNT
$18.4B
$888K 0.01%
22,492
+206
+0.9% +$7.9K
LBTYK icon
735
Liberty Global Class C
LBTYK
$3.63B
$884K 0.01%
25,220
+459
+2% +$15.8K
MGA icon
736
Magna International
MGA
$18.5B
$883K 0.01%
20,501
+11,433
+126% +$500K
PCAR icon
737
PACCAR
PCAR
$69.5B
$883K 0.01%
19,815
+2,340
+13% +$105K
KKR icon
738
KKR & Co
KKR
$95.7B
$876K 0.01%
48,575
-4,650
-9% -$82.6K
DCP
739
DELISTED
DCP Midstream, LP
DCP
$866K 0.01%
22,080
– –
KATE
740
DELISTED
Kate Spade & Company
KATE
$866K 0.01%
+36,293
New +$759K
SBH icon
741
Sally Beauty Holdings
SBH
$1.54B
$865K 0.01%
40,515
+3,411
+9% +$78.1K
BCR
742
DELISTED
CR Bard Inc.
BCR
$865K 0.01%
3,492
+30
+0.9% +$7.23K
STBI
743
DELISTED
STURGIS BANCORP INC
STBI
$861K 0.01%
55,921
– –
TEAM icon
744
Atlassian
TEAM
$26.3B
$860K 0.01%
+30,246
New +$854K
CIGI icon
745
Colliers International
CIGI
$5.08B
$858K 0.01%
17,502
+1,065
+6% +$45.5K
CXO
746
DELISTED
CONCHO RESOURCES INC.
CXO
$857K 0.01%
6,630
– –
FMI
747
DELISTED
Foundation Medicine, Inc.
FMI
$854K 0.01%
34,426
-31,640
-48% -$789K
ASMB icon
748
Assembly Biosciences
ASMB
$503M
$852K 0.01%
3,404
– –
AIRM
749
CALL
DELISTED
Air Methods Corp
AIRM
$851K 0.01%
+19,800
New +$765K
EQR icon
750
Equity Residential
EQR
$25.3B
$847K 0.01%
13,495
+1,899
+16% +$119K
28 29
30
31 32

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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.