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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
+9.1%
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
$19.5B
AUM Growth
+$2.1B
Cap. Flow
+$465M
Cap. Flow %
2.39%
Top 10 Hldgs %
22.3%
Holding
1,847
New
125
Increased
679
Reduced
598
Closed
120

Top Buys

Rank Stock Value
1
ANET icon
Arista Networks
ANET
+$24M
2
DIS icon
Walt Disney
DIS
+$22.5M
3
PYPL icon
PayPal
PYPL
+$21.1M
4
AXP icon
American Express
AXP
+$18.6M
5
NOW icon
ServiceNow
NOW
+$15.5M

Top Sells

Rank Stock Value
1
CELG
Celgene Corp
CELG
+$25M
2
ULTA icon
Ulta Beauty
ULTA
+$21.8M
3
EOG icon
EOG Resources
EOG
+$20.9M
4
ABMD
Abiomed Inc
ABMD
+$16.3M
5
GRUB
Just Eat Takeaway.com N.V. American Depositary Shares
GRUB
+$11.2M

Sector Composition

Rank Sector Weight
1 Technology 23.46%
2 Healthcare 17.35%
3 Financials 13.04%
4 Consumer Discretionary 9.94%
5 Industrials 9.53%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
AGG icon
151
iShares Core US Aggregate Bond ETF
AGG
$137B
$27.9M 0.14%
248,021
+54,548
+28% +$6.15M
LYV icon
152
Live Nation Entertainment
LYV
$42.3B
$27.9M 0.14%
389,884
+51,722
+15% +$3.51M
USFD icon
153
US Foods
USFD
$21.9B
$27.9M 0.14%
665,105
-32,832
-5% -$1.32M
CL icon
154
Colgate-Palmolive
CL
$71.6B
$27.3M 0.14%
397,060
-1,843
-0.5% -$126K
COO icon
155
Cooper Companies
COO
$14.5B
$27.3M 0.14%
340,264
+9,044
+3% +$682K
AON icon
156
Aon
AON
$75.9B
$27.3M 0.14%
131,198
+2,843
+2% +$563K
IEFA icon
157
iShares Core MSCI EAFE ETF
IEFA
$191B
$27.2M 0.14%
416,436
-4,755
-1% -$302K
AMGN icon
158
Amgen
AMGN
$204B
$26.7M 0.14%
110,580
+4,995
+5% +$1.1M
GWW icon
159
W.W. Grainger
GWW
$64.7B
$26.2M 0.13%
77,409
+2,006
+3% +$637K
IUSV icon
160
iShares Core S&P US Value ETF
IUSV
$27.3B
$25.9M 0.13%
410,552
+12,569
+3% +$758K
CVS icon
161
CVS Health
CVS
$134B
$25.4M 0.13%
341,705
+13,530
+4% +$950K
RTX icon
162
RTX Corp
RTX
$292B
$25.2M 0.13%
267,723
+20,753
+8% +$1.88M
SDY icon
163
State Street SPDR S&P Dividend ETF
SDY
$23.6B
$25.1M 0.13%
233,756
+11,457
+5% +$1.2M
TREX icon
164
Trex
TREX
$4.66B
$25.1M 0.13%
559,038
+179,482
+47% +$7.9M
HON icon
165
Honeywell
HON
$78.2B
$25M 0.13%
149,932
+58,024
+63% +$9.49M
CAKE icon
166
Cheesecake Factory
CAKE
$5.21B
$25M 0.13%
642,811
+236,395
+58% +$9.75M
FIS icon
167
Fidelity National Information Services
FIS
$23.1B
$24.9M 0.13%
178,840
+4,479
+3% +$601K
BRK.A icon
168
Berkshire Hathaway Class A
BRK.A
$1.1T
$24.8M 0.13%
73
+3
+4% +$977K
SPSB icon
169
State Street SPDR Portfolio Short Term Corporate Bond ETF
SPSB
$10.6B
$24.5M 0.13%
795,293
-23,121
-3% -$713K
EPD icon
170
Enterprise Products Partners
EPD
$81.9B
$24.4M 0.13%
865,662
-10,321
-1% -$280K
COLD icon
171
Americold
COLD
$4.03B
$24.3M 0.12%
692,718
+158,622
+30% +$5.84M
HEI icon
172
HEICO Corp
HEI
$50.4B
$24.2M 0.12%
212,422
-26,648
-11% -$3.28M
GBCI icon
173
Glacier Bancorp
GBCI
$6.57B
$24.1M 0.12%
523,498
-1,965
-0.4% -$84.9K
AZN icon
174
AstraZeneca
AZN
$245B
$23.7M 0.12%
237,804
+11,188
+5% +$1.05M
CMCSA icon
175
Comcast
CMCSA
$87.2B
$23.3M 0.12%
519,052
+20,472
+4% +$911K
5 6
7
8 9

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William Blair & Company's Q4 2019 Portfolio in Review

As of Q4 2019, William Blair & Company held 1,847 positions worth $19.5B, up 12% from $17.4B the previous quarter. Its ten largest holdings account for 22% of the portfolio.

William Blair & Company's Q4 2019 filing shows 125 new, 679 increased, 598 reduced and 120 closed positions. Its largest new stake was Dynatrace: 165,602 shares worth $4.19M. The largest sale was Celgene Corp, an estimated $25M.

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 Q4 2019 buy was Dynatrace: 165,602 shares worth $4.19M.
  • William Blair & Company added most to Arista Networks in Q4 2019, an estimated $24M increase.
  • William Blair & Company's biggest Q4 2019 reduction was Ulta Beauty, cutting an estimated $21.8M.
  • William Blair & Company fully exited Celgene Corp in Q4 2019, selling an estimated $25M.
  • William Blair & Company's ten largest holdings make up 22% of its $19.5B portfolio in Q4 2019.
  • William Blair & Company opened 125 new positions and closed 120 in Q4 2019.
  • William Blair & Company's portfolio value rose 12% quarter-over-quarter to $19.5B.

Based on William Blair & Company's 13F filing for Q4 2019, filed 13 Feb 2020.