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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
+5.93%
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
$10.7B
AUM Growth
-$908M
Cap. Flow
-$1.39B
Cap. Flow %
-13.04%
Top 10 Hldgs %
17.51%
Holding
1,529
New
105
Increased
364
Reduced
634
Closed
286

Top Buys

Rank Stock Value
1
GOOGL icon
Alphabet (Google) Class A
GOOGL
+$66.7M
2
G icon
Genpact
G
+$27.6M
3
ZTS icon
Zoetis
ZTS
+$17.2M
4
MBLY
Mobileye N.V.
MBLY
+$16.2M
5
PLAY icon
Dave & Buster's
PLAY
+$13.9M

Top Sells

Rank Stock Value
1
GOOG icon
Alphabet (Google) Class C
GOOG
+$104M
2
GILD icon
Gilead Sciences
GILD
+$42.3M
3
MA icon
Mastercard
MA
+$37.4M
4
MJN
Mead Johnson Nutrition Company
MJN
+$37.4M
5
AMZN icon
Amazon
AMZN
+$33.3M

Sector Composition

Rank Sector Weight
1 Healthcare 19.61%
2 Technology 14.78%
3 Industrials 12.48%
4 Financials 12.35%
5 Consumer Discretionary 11.45%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
SLB icon
26
SLB Ltd
SLB
$73.6B
$83M 0.78%
1,189,586
-208,824
-15% -$15.6M
WEX icon
27
WEX
WEX
$6.37B
$78.8M 0.74%
891,882
+1,244
+0.1% +$113K
VRSK icon
28
Verisk Analytics
VRSK
$25.4B
$76.2M 0.72%
990,562
-215,787
-18% -$16.4M
ZTS icon
29
Zoetis
ZTS
$32.4B
$75.9M 0.71%
1,584,661
+379,640
+32% +$17.2M
ARG
30
DELISTED
Airgas Inc
ARG
$75.6M 0.71%
546,674
-9,407
-2% -$1.08M
SPY icon
31
State Street SPDR S&P 500 ETF Trust
SPY
$790B
$74.8M 0.7%
366,752
+15,080
+4% +$3.1M
GE icon
32
GE Aerospace
GE
$374B
$74.1M 0.7%
496,387
+93,396
+23% +$13.3M
GS icon
33
Goldman Sachs
GS
$300B
$73.5M 0.69%
407,708
+10,024
+3% +$1.86M
EOG icon
34
EOG Resources
EOG
$79.2B
$72.8M 0.68%
1,029,090
-4,556
-0.4% -$370K
GOOGL icon
35
Alphabet (Google) Class A
GOOGL
$4.36T
$70.1M 0.66%
+1,802,460
New +$66.7M
ORLY icon
36
O'Reilly Automotive
ORLY
$72.9B
$70.1M 0.66%
4,146,360
-757,035
-15% -$13.1M
CSGP icon
37
CoStar Group
CSGP
$11.7B
$68.4M 0.64%
3,310,120
-521,660
-14% -$10.4M
GWRE icon
38
Guidewire Software
GWRE
$12.6B
$67.5M 0.63%
1,122,281
+13,703
+1% +$794K
DIS icon
39
Walt Disney
DIS
$167B
$64.2M 0.6%
610,777
+63,704
+12% +$7.1M
JNJ icon
40
Johnson & Johnson
JNJ
$618B
$63.8M 0.6%
620,956
+7,129
+1% +$717K
ITW icon
41
Illinois Tool Works
ITW
$82.6B
$62.3M 0.59%
672,713
-7,547
-1% -$685K
VUG icon
42
Vanguard Morningstar Growth ETF
VUG
$220B
$62.2M 0.58%
3,505,326
+216,318
+7% +$3.87M
PRAA icon
43
PRA Group
PRAA
$663M
$62M 0.58%
1,786,819
+117,456
+7% +$5.25M
TDG icon
44
TransDigm Group
TDG
$70.2B
$61M 0.57%
267,173
-79,892
-23% -$18M
CL icon
45
Colgate-Palmolive
CL
$73.1B
$61M 0.57%
915,576
+10,407
+1% +$692K
COST icon
46
Costco
COST
$422B
$60.2M 0.57%
372,906
-92,262
-20% -$14.6M
ABT icon
47
Abbott
ABT
$183B
$59.7M 0.56%
1,329,537
+39,398
+3% +$1.74M
PANW icon
48
Palo Alto Networks
PANW
$270B
$58.5M 0.55%
1,993,596
+47,538
+2% +$1.37M
PX
49
DELISTED
Praxair Inc
PX
$58.2M 0.55%
568,106
-25,779
-4% -$2.81M
WDAY icon
50
Workday
WDAY
$39.6B
$58.1M 0.55%
729,484
+114,646
+19% +$9.17M
1
2
3 4 5

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William Blair & Company's Q4 2015 Portfolio in Review

As of Q4 2015, William Blair & Company held 1,529 positions worth $10.7B, down 7.9% from $11.6B the previous quarter. Its ten largest holdings account for 18% of the portfolio.

William Blair & Company withdrew a net $1.39B in Q4 2015, closing 286 positions and reducing 634 holdings. Its most notable exit was Barracuda Networks, Inc., an estimated $7.62M position sold in full.

By sector, the portfolio is most concentrated in Healthcare at 20% of assets, up from 19% a quarter earlier, followed by Technology and Industrials.

Against the trend, William Blair & Company opened a new position in Alphabet (Google) Class A worth $70.1M.

  • William Blair & Company's largest Q4 2015 buy was Alphabet (Google) Class A: 1,802,460 shares worth $70.1M.
  • William Blair & Company added most to Zoetis in Q4 2015, an estimated $17.2M increase.
  • William Blair & Company's biggest Q4 2015 reduction was Alphabet (Google) Class C, cutting an estimated $104M.
  • William Blair & Company fully exited Barracuda Networks, Inc. in Q4 2015, selling an estimated $7.62M.
  • William Blair & Company's ten largest holdings make up 18% of its $10.7B portfolio in Q4 2015.
  • William Blair & Company opened 105 new positions and closed 286 in Q4 2015.
  • William Blair & Company's portfolio value fell 7.9% quarter-over-quarter to $10.7B.

Based on William Blair & Company's 13F filing for Q4 2015, filed 16 Feb 2016.