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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
-13.3%
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
$13.7B
AUM Growth
-$2.6B
Cap. Flow
-$222M
Cap. Flow %
-1.61%
Top 10 Hldgs %
20.6%
Holding
1,859
New
191
Increased
555
Reduced
650
Closed
205

Top Buys

Rank Stock Value
1
LIN icon
Linde
LIN
+$55.6M
2
EFA icon
iShares MSCI EAFE ETF
EFA
+$22.8M
3
ULTA icon
Ulta Beauty
ULTA
+$22.1M
4
INTU icon
Intuit
INTU
+$22M
5
DIS icon
Walt Disney
DIS
+$21.1M

Top Sells

Rank Stock Value
1
PX
Praxair Inc
PX
+$73.7M
2
RHT
Red Hat Inc
RHT
+$46M
3
ESRX
Express Scripts Holding Company
ESRX
+$45.8M
4
META icon
Meta Platforms (Facebook)
META
+$32.9M
5
P
Everpure Inc
P
+$31.5M

Sector Composition

Rank Sector Weight
1 Technology 20.75%
2 Healthcare 18.42%
3 Financials 12.76%
4 Consumer Discretionary 9.45%
5 Industrials 9.06%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
MSFT icon
1
Microsoft
MSFT
$2.94T
$396M 2.89%
3,896,610
-4,508
-0.1% -$483K
AAPL icon
2
Apple
AAPL
$5T
$391M 2.85%
9,926,712
+13,820
+0.1% +$670K
AMZN icon
3
Amazon
AMZN
$2.46T
$375M 2.74%
4,998,040
+13,880
+0.3% +$1.15M
V icon
4
Visa
V
$703B
$340M 2.48%
2,579,562
-28,137
-1% -$3.89M
IDXX icon
5
Idexx Laboratories
IDXX
$44.8B
$292M 2.13%
1,571,636
+33,525
+2% +$6.87M
GOOG icon
6
Alphabet (Google) Class C
GOOG
$4.11T
$215M 1.57%
4,156,220
-28,500
-0.7% -$1.53M
RHT
7
DELISTED
Red Hat Inc
RHT
$210M 1.53%
1,197,183
-290,002
-20% -$46M
MA icon
8
Mastercard
MA
$498B
$209M 1.53%
1,109,574
-10,676
-1% -$2.12M
ZTS icon
9
Zoetis
ZTS
$32.4B
$203M 1.48%
2,372,023
-46,151
-2% -$4.16M
VEEV icon
10
Veeva Systems
VEEV
$33.7B
$193M 1.41%
2,166,267
+109,041
+5% +$9.96M
ADBE icon
11
Adobe
ADBE
$105B
$177M 1.29%
783,915
-41,627
-5% -$10M
DHR icon
12
Danaher
DHR
$138B
$171M 1.25%
1,868,133
+22,457
+1% +$2.04M
SBUX icon
13
Starbucks
SBUX
$118B
$166M 1.21%
2,585,067
-90,834
-3% -$5.69M
WDAY icon
14
Workday
WDAY
$41.8B
$163M 1.19%
1,019,985
+50,628
+5% +$7.17M
JPM icon
15
JPMorgan Chase
JPM
$918B
$141M 1.03%
1,445,745
+56,490
+4% +$6.02M
PYPL icon
16
PayPal
PYPL
$50.9B
$139M 1.01%
1,649,545
+99,124
+6% +$8.26M
SPY icon
17
State Street SPDR S&P 500 ETF Trust
SPY
$776B
$137M 1%
548,798
+35,542
+7% +$9.58M
VUG icon
18
Vanguard Growth ETF
VUG
$214B
$137M 1%
6,113,256
+349,968
+6% +$8.48M
ECL icon
19
Ecolab
ECL
$79.3B
$136M 0.99%
922,880
+6,494
+0.7% +$992K
ULTI
20
DELISTED
Ultimate Software Group Inc
ULTI
$133M 0.97%
541,516
+7,750
+1% +$2.05M
GOOGL icon
21
Alphabet (Google) Class A
GOOGL
$4.11T
$131M 0.96%
2,508,920
-142,720
-5% -$7.71M
CRM icon
22
Salesforce
CRM
$155B
$125M 0.91%
910,484
-20,785
-2% -$2.86M
ICE icon
23
Intercontinental Exchange
ICE
$87.6B
$116M 0.84%
1,536,022
-16,351
-1% -$1.25M
DXCM icon
24
DexCom
DXCM
$28.9B
$116M 0.84%
3,862,208
-73,400
-2% -$2.33M
FAST icon
25
Fastenal
FAST
$54.4B
$111M 0.81%
8,504,008
-52,016
-0.6% -$704K
1
2 3 4 5

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William Blair & Company's Q4 2018 Portfolio in Review

As of Q4 2018, William Blair & Company held 1,859 positions worth $13.7B, down 16% from $16.3B the previous quarter. Its ten largest holdings account for 21% of the portfolio.

William Blair & Company's Q4 2018 filing shows 191 new, 555 increased, 650 reduced and 205 closed positions. Its largest new stake was Linde: 352,000 shares worth $54.9M. The largest sale was Praxair Inc, an estimated $73.7M.

By sector, the portfolio is most concentrated in Technology at 21% of assets, down from 21% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q4 2018 buy was Linde: 352,000 shares worth $54.9M.
  • William Blair & Company added most to iShares MSCI EAFE ETF in Q4 2018, an estimated $22.8M increase.
  • William Blair & Company's biggest Q4 2018 reduction was Red Hat Inc, cutting an estimated $46M.
  • William Blair & Company fully exited Praxair Inc in Q4 2018, selling an estimated $73.7M.
  • William Blair & Company's ten largest holdings make up 21% of its $13.7B portfolio in Q4 2018.
  • William Blair & Company opened 191 new positions and closed 205 in Q4 2018.
  • William Blair & Company's portfolio value fell 16% quarter-over-quarter to $13.7B.

Based on William Blair & Company's 13F filing for Q4 2018, filed 14 Feb 2019.