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William Blair & Company

William Blair & Company Portfolio holdings

AUM $38.4B
1-Year Est. Return 25.71%
This Fund
S&P 500
This Quarter Est. Return
+13.98%
1 Year Est. Return
+25.71%
3 Year Est. Return
+88.7%
5 Year Est. Return
+104.53%
10 Year Est. Return
+665.86%
AUM
$27.3B
AUM Growth
+$3.7B
Cap. Flow
+$865M
Cap. Flow %
3.17%
Top 10 Hldgs %
25.38%
Holding
1,900
New
178
Increased
749
Reduced
623
Closed
72

Top Buys

Rank Stock Value
1
SPLK
Splunk Inc
SPLK
+$77.8M
2
GD icon
General Dynamics
GD
+$49.6M
3
ROK icon
Rockwell Automation
ROK
+$43.3M
4
LMBS icon
First Trust Exchange-Traded Fund IV First Trust Low Duration Opportunities ETF
LMBS
+$32.3M
5
JPM icon
JPMorgan Chase
JPM
+$30.6M

Top Sells

Rank Stock Value
1
WORK
Slack Technologies, Inc.
WORK
+$24.2M
2
NTRS icon
Northern Trust
NTRS
+$24.1M
3
BKNG icon
Booking.com
BKNG
+$22.5M
4
EXEL icon
Exelixis
EXEL
+$17.5M
5
DOCU
DocuSign
DOCU
+$15M

Sector Composition

Rank Sector Weight
1 Technology 27.82%
2 Healthcare 18.6%
3 Financials 11.15%
4 Consumer Discretionary 10.38%
5 Industrials 8.96%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
AZN icon
201
AstraZeneca
AZN
$246B
$22.8M 0.08%
228,152
-2,578
-1% -$273K
EHC icon
202
Encompass Health
EHC
$12.3B
$22.1M 0.08%
335,810
-14,625
-4% -$860K
BILL icon
203
BILL Holdings
BILL
$4.85B
$21.8M 0.08%
159,349
+5,676
+4% +$669K
EL icon
204
Estee Lauder
EL
$31.7B
$21.7M 0.08%
81,678
+12,279
+18% +$2.95M
CVS icon
205
CVS Health
CVS
$121B
$21.7M 0.08%
317,119
+6,005
+2% +$391K
BAH icon
206
Booz Allen Hamilton
BAH
$9.43B
$21.7M 0.08%
248,382
-4,129
-2% -$351K
PLNT icon
207
Planet Fitness
PLNT
$3.65B
$21.3M 0.08%
274,515
+13,693
+5% +$958K
TGT icon
208
Target
TGT
$69.9B
$21.1M 0.08%
119,496
+1,468
+1% +$245K
ESGD icon
209
iShares ESG Aware MSCI EAFE ETF
ESGD
$12.3B
$20.8M 0.08%
284,270
-8,197
-3% -$560K
MU icon
210
Micron Technology
MU
$1.03T
$20.7M 0.08%
275,682
+4,566
+2% +$275K
CAT icon
211
Caterpillar
CAT
$393B
$20.5M 0.08%
112,718
+3,829
+4% +$649K
APD icon
212
Air Products & Chemicals
APD
$67.7B
$20M 0.07%
73,244
+2,151
+3% +$606K
DIA icon
213
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
$48.2B
$19.9M 0.07%
65,108
+4,349
+7% +$1.27M
SYY icon
214
Sysco
SYY
$40.5B
$19.3M 0.07%
259,799
+86,476
+50% +$5.95M
QNST icon
215
QuinStreet
QNST
$1.19B
$19.2M 0.07%
897,744
-20,810
-2% -$380K
CMG icon
216
Chipotle Mexican Grill
CMG
$41.3B
$19M 0.07%
686,450
-4,000
-0.6% -$105K
TAN icon
217
Invesco Solar ETF
TAN
$1.37B
$18.9M 0.07%
184,285
-624
-0.3% -$50K
IEMG icon
218
iShares Core MSCI Emerging Markets ETF
IEMG
$158B
$18.9M 0.07%
305,115
+83,606
+38% +$4.82M
PXD
219
DELISTED
Pioneer Natural Resource Co.
PXD
$18.8M 0.07%
164,718
-23,862
-13% -$2.32M
SHAK icon
220
Shake Shack
SHAK
$2.94B
$18.5M 0.07%
218,681
+4,719
+2% +$366K
RTX icon
221
RTX Corp
RTX
$300B
$18.4M 0.07%
257,992
+2,744
+1% +$180K
DE icon
222
Deere & Co
DE
$167B
$18.1M 0.07%
67,452
+1,256
+2% +$312K
VCIT icon
223
Vanguard Intermediate-Term Corporate Bond ETF
VCIT
$67.6B
$18.1M 0.07%
186,827
-32,104
-15% -$3.09M
XOM icon
224
ExxonMobil
XOM
$657B
$18.1M 0.07%
438,534
-66,943
-13% -$2.51M
VNQ icon
225
Vanguard Real Estate ETF
VNQ
$38.6B
$18M 0.07%
211,928
-25,015
-11% -$2.07M
7 8
9
10 11

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William Blair & Company's Q4 2020 Portfolio in Review

As of Q4 2020, William Blair & Company held 1,900 positions worth $27.3B, up 16% from $23.6B the previous quarter. Its ten largest holdings account for 25% of the portfolio.

William Blair & Company deployed $865M of net new capital in Q4 2020, opening 178 new positions and adding to 749 existing holdings. Its largest new stake was Seagen Inc. Common Stock: 91,539 shares worth $16M.

By sector, the portfolio is most concentrated in Technology at 28% of assets, up from 27% a quarter earlier, followed by Healthcare and Financials.

On the sell side, the largest reduction was Slack Technologies, Inc., an estimated $24.2M trimmed.

  • William Blair & Company's largest Q4 2020 buy was Seagen Inc. Common Stock: 91,539 shares worth $16M.
  • William Blair & Company added most to Splunk Inc in Q4 2020, an estimated $77.8M increase.
  • William Blair & Company's biggest Q4 2020 reduction was Slack Technologies, Inc., cutting an estimated $24.2M.
  • William Blair & Company fully exited Dunkin' Brands Group, Inc. in Q4 2020, selling an estimated $12.1M.
  • William Blair & Company's ten largest holdings make up 25% of its $27.3B portfolio in Q4 2020.
  • William Blair & Company opened 178 new positions and closed 72 in Q4 2020.
  • William Blair & Company's portfolio value rose 16% quarter-over-quarter to $27.3B.

Based on William Blair & Company's 13F filing for Q4 2020, filed 9 Feb 2021.