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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
+1.36%
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
$17.4B
AUM Growth
-$134M
Cap. Flow
-$77.4M
Cap. Flow %
-0.45%
Top 10 Hldgs %
22.49%
Holding
1,807
New
76
Increased
584
Reduced
700
Closed
110

Top Buys

Rank Stock Value
1
DIS icon
Walt Disney
DIS
+$38.7M
2
BX icon
Blackstone
BX
+$30.7M
3
FISV
Fiserv Inc
FISV
+$22.7M
4
COLD icon
Americold
COLD
+$18.8M
5
PRO
PROS Holdings
PRO
+$16.9M

Top Sells

Rank Stock Value
1
NFLX icon
Netflix
NFLX
+$45.9M
2
P
Everpure Inc
P
+$43.7M
3
WDAY icon
Workday
WDAY
+$41.7M
4
SMAR
Smartsheet Inc.
SMAR
+$27.6M
5
KMPR icon
Kemper
KMPR
+$21.8M

Sector Composition

Rank Sector Weight
1 Technology 22.76%
2 Healthcare 17.55%
3 Financials 12.49%
4 Consumer Discretionary 10.27%
5 Industrials 9.42%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
AAPL icon
1
Apple
AAPL
$5T
$564M 3.25%
10,075,204
-24,976
-0.2% -$1.31M
MSFT icon
2
Microsoft
MSFT
$2.94T
$561M 3.23%
4,035,499
-49,537
-1% -$6.81M
AMZN icon
3
Amazon
AMZN
$2.46T
$471M 2.71%
5,423,160
+83,320
+2% +$7.73M
V icon
4
Visa
V
$703B
$455M 2.62%
2,646,067
-15,648
-0.6% -$2.79M
IDXX icon
5
Idexx Laboratories
IDXX
$44.8B
$420M 2.42%
1,546,179
-27,469
-2% -$7.64M
MA icon
6
Mastercard
MA
$498B
$314M 1.81%
1,155,384
-19,554
-2% -$5.39M
VEEV icon
7
Veeva Systems
VEEV
$33.7B
$303M 1.75%
1,985,829
-62,777
-3% -$10.1M
ZTS icon
8
Zoetis
ZTS
$32.4B
$293M 1.69%
2,351,564
-31,674
-1% -$3.82M
GOOG icon
9
Alphabet (Google) Class C
GOOG
$4.11T
$264M 1.52%
4,331,380
-15,240
-0.4% -$902K
DHR icon
10
Danaher
DHR
$138B
$258M 1.49%
2,015,801
-25,236
-1% -$3.16M
FISV
11
Fiserv Inc
FISV
$29.8B
$242M 1.39%
2,333,027
+222,673
+11% +$22.7M
SBUX icon
12
Starbucks
SBUX
$118B
$235M 1.35%
2,656,756
-8,052
-0.3% -$747K
PYPL icon
13
PayPal
PYPL
$50.9B
$217M 1.25%
2,096,338
+38,520
+2% +$4.24M
ADBE icon
14
Adobe
ADBE
$105B
$213M 1.23%
770,367
-14,023
-2% -$4.09M
JPM icon
15
JPMorgan Chase
JPM
$918B
$198M 1.14%
1,683,814
+13,197
+0.8% +$1.49M
VUG icon
16
Vanguard Growth ETF
VUG
$214B
$191M 1.1%
6,878,922
+174,954
+3% +$4.85M
ECL icon
17
Ecolab
ECL
$79.3B
$190M 1.1%
960,499
+11,219
+1% +$2.25M
DXCM icon
18
DexCom
DXCM
$28.9B
$171M 0.99%
4,594,948
+43,284
+1% +$1.68M
GWRE icon
19
Guidewire Software
GWRE
$14.1B
$163M 0.94%
1,548,734
+26,087
+2% +$2.63M
SPY icon
20
State Street SPDR S&P 500 ETF Trust
SPY
$776B
$161M 0.93%
541,821
+11,105
+2% +$3.28M
CSGP icon
21
CoStar Group
CSGP
$12.1B
$150M 0.86%
2,520,700
-50,510
-2% -$3.02M
ICE icon
22
Intercontinental Exchange
ICE
$87.6B
$149M 0.86%
1,616,260
-1,551
-0.1% -$142K
WDAY icon
23
Workday
WDAY
$41.8B
$148M 0.85%
871,960
-215,989
-20% -$41.7M
VRSK icon
24
Verisk Analytics
VRSK
$28.1B
$147M 0.85%
930,467
-22,387
-2% -$3.47M
GOOGL icon
25
Alphabet (Google) Class A
GOOGL
$4.11T
$146M 0.84%
2,387,300
-333,260
-12% -$19.7M
1
2 3 4 5

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William Blair & Company's Q3 2019 Portfolio in Review

As of Q3 2019, William Blair & Company held 1,807 positions worth $17.4B, down 0.77% from $17.5B the previous quarter. Its ten largest holdings account for 22% of the portfolio.

William Blair & Company's Q3 2019 filing shows 76 new, 584 increased, 700 reduced and 110 closed positions. Its largest new stake was Blackstone: 629,283 shares worth $30.7M. The largest sale was Netflix, an estimated $45.9M.

By sector, the portfolio is most concentrated in Technology at 23% of assets, up from 23% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q3 2019 buy was Blackstone: 629,283 shares worth $30.7M.
  • William Blair & Company added most to Walt Disney in Q3 2019, an estimated $38.7M increase.
  • William Blair & Company's biggest Q3 2019 reduction was Netflix, cutting an estimated $45.9M.
  • William Blair & Company fully exited Worldpay, Inc. in Q3 2019, selling an estimated $9.57M.
  • William Blair & Company's ten largest holdings make up 22% of its $17.4B portfolio in Q3 2019.
  • William Blair & Company opened 76 new positions and closed 110 in Q3 2019.
  • William Blair & Company's portfolio value fell 0.77% quarter-over-quarter to $17.4B.

Based on William Blair & Company's 13F filing for Q3 2019, filed 12 Nov 2019.