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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
SLB icon
26
SLB Ltd
SLB
$72.7B
$98.6M 0.79%
1,256,228
+27,826
+2% +$2.28M
EOG icon
27
EOG Resources
EOG
$77.7B
$91.6M 0.74%
939,210
+51,065
+6% +$5.09M
ULTI
28
DELISTED
Ultimate Software Group Inc
ULTI
$91.1M 0.73%
469,620
+42,841
+10% +$8.34M
GE icon
29
GE Aerospace
GE
$364B
$90.8M 0.73%
635,926
+15,449
+2% +$2.24M
VEEV icon
30
Veeva Systems
VEEV
$33.8B
$88.4M 0.71%
1,931,766
+557,532
+41% +$25M
CELG
31
DELISTED
Celgene Corp
CELG
$86.8M 0.7%
701,156
-85,276
-11% -$10.2M
WSO icon
32
Watsco Inc
WSO
$13.2B
$84.7M 0.68%
586,149
+39,700
+7% +$5.94M
HD icon
33
Home Depot
HD
$337B
$83.7M 0.67%
572,924
-1,000
-0.2% -$142K
JNJ icon
34
Johnson & Johnson
JNJ
$640B
$82.4M 0.66%
666,701
+14,706
+2% +$1.76M
DXCM icon
35
DexCom
DXCM
$29B
$81M 0.65%
4,039,200
+75,676
+2% +$1.48M
ITW icon
36
Illinois Tool Works
ITW
$84.1B
$79.5M 0.64%
600,246
-2,666
-0.4% -$345K
VUG icon
37
Vanguard Growth ETF
VUG
$212B
$76.9M 0.62%
3,827,898
+307,440
+9% +$6.06M
WDAY icon
38
Workday
WDAY
$41.5B
$76.1M 0.61%
915,982
+32,701
+4% +$2.71M
CSGP icon
39
CoStar Group
CSGP
$12.2B
$75.2M 0.61%
3,663,310
+144,920
+4% +$2.94M
VRSK icon
40
Verisk Analytics
VRSK
$27.9B
$72.1M 0.58%
888,286
-64,474
-7% -$5.29M
CL icon
41
Colgate-Palmolive
CL
$74.8B
$71.3M 0.58%
975,142
+6,441
+0.7% +$451K
APH icon
42
Amphenol
APH
$185B
$70.6M 0.57%
3,974,528
+83,648
+2% +$1.45M
CHKP icon
43
Check Point Software Technologies
CHKP
$14.3B
$70M 0.56%
682,406
+8,284
+1% +$812K
FTV icon
44
Fortive
FTV
$18.2B
$69.5M 0.56%
1,845,949
+151,109
+9% +$5.42M
GWW icon
45
W.W. Grainger
GWW
$64.2B
$69.4M 0.56%
296,615
-11,994
-4% -$2.95M
BMY icon
46
Bristol-Myers Squibb
BMY
$129B
$67.6M 0.55%
1,226,817
-145,073
-11% -$7.96M
NTRS icon
47
Northern Trust
NTRS
$21.8B
$66.9M 0.54%
772,173
-4,865
-0.6% -$423K
UNP icon
48
Union Pacific
UNP
$174B
$66.3M 0.53%
624,049
-25,853
-4% -$2.76M
PYPL icon
49
PayPal
PYPL
$50.3B
$65.7M 0.53%
1,555,268
+132,909
+9% +$5.56M
ORLY icon
50
O'Reilly Automotive
ORLY
$75.1B
$64.8M 0.52%
3,604,140
-248,340
-6% -$4.49M
1
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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.