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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
+2.39%
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
$26.5B
AUM Growth
-$769M
Cap. Flow
-$1.09B
Cap. Flow %
-4.11%
Top 10 Hldgs %
22.54%
Holding
1,941
New
123
Increased
715
Reduced
742
Closed
84

Top Buys

Rank Stock Value
1
KMX icon
CarMax
KMX
+$73M
2
OSH
Oak Street Health, Inc.
OSH
+$60.6M
3
IRTC icon
iRhythm Holdings
IRTC
+$51.2M
4
DXCM icon
DexCom
DXCM
+$39.4M
5
AON icon
Aon
AON
+$30.5M

Top Sells

Rank Stock Value
1
AAPL icon
Apple
AAPL
+$449M
2
VUG icon
Vanguard Morningstar Growth ETF
VUG
+$271M
3
AMZN icon
Amazon
AMZN
+$157M
4
MSFT icon
Microsoft
MSFT
+$83.3M
5
GOOG icon
Alphabet (Google) Class C
GOOG
+$78.4M

Sector Composition

Rank Sector Weight
1 Technology 25.67%
2 Healthcare 19.26%
3 Financials 11.68%
4 Consumer Discretionary 10.53%
5 Industrials 9.66%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
BBAX icon
1826
JPMorgan BetaBuilders Developed Asia Pacific-ex Japan ETF
BBAX
$6.8B
– –
-9,404
Closed -$509K
BBCA icon
1827
JPMorgan BetaBuilders Canada ETF
BBCA
$11.3B
– –
-10,383
Closed -$557K
BBEU icon
1828
JPMorgan BetaBuilders Europe ETF
BBEU
$9.52B
– –
-15,652
Closed -$818K
BBJP icon
1829
JPMorgan BetaBuilders Japan ETF
BBJP
$19.1B
– –
-9,679
Closed -$542K
BBRE icon
1830
JPMorgan BetaBuilders MSCI US REIT ETF
BBRE
$1.25B
$0 ﹤0.01%
5
– –
BGC icon
1831
BGC Group
BGC
$5.12B
– –
-11,956
Closed -$48K
CHPT icon
1832
ChargePoint
CHPT
$166M
– –
-265
Closed -$212K
CINF icon
1833
Cincinnati Financial
CINF
$26.5B
– –
-2,307
Closed -$202K
CNS icon
1834
Cohen & Steers
CNS
$4.36B
– –
-2,848
Closed -$212K
COOP
1835
DELISTED
Mr. Cooper
COOP
– –
-15,000
Closed -$465K
CRIS icon
1836
Curis
CRIS
$3.49M
– –
-25
Closed -$82K
CSGS
1837
DELISTED
CSG Systems International
CSGS
– –
-5,060
Closed -$228K
CTLP
1838
DELISTED
Cantaloupe
CTLP
– –
-18,150
Closed -$190K
CXSE icon
1839
WisdomTree Trust WisdomTree China ex-State-Owned Enterprises Fund
CXSE
$501M
– –
-95
Closed -$6K
DEW icon
1840
WisdomTree Global High Dividend Fund
DEW
$155M
– –
-28
Closed -$1K
DLS icon
1841
WisdomTree International SmallCap Dividend Fund
DLS
$1.08B
– –
-106
Closed -$7K
DOL icon
1842
WisdomTree True Developed International Fund
DOL
$845M
– –
-450
Closed -$21K
DXD icon
1843
ProShares UltraShort Dow 30
DXD
$42.7M
– –
-5
Closed –
ECON icon
1844
Columbia Emerging Markets Consumer ETF
ECON
$310M
– –
-10,815
Closed -$305K
ESI icon
1845
Element Solutions
ESI
$9.37B
– –
-63,004
Closed -$1.12M
FXNC icon
1846
First National Corp
FXNC
$288M
– –
-10,000
Closed -$169K
GCO icon
1847
Genesco
GCO
$391M
– –
-31,814
Closed -$957K
GRBK icon
1848
Green Brick Partners
GRBK
$3.02B
– –
-13,000
Closed -$298K
GWRS icon
1849
Global Water Resources
GWRS
$219M
– –
-12,775
Closed -$184K
INGR icon
1850
Ingredion
INGR
$6.54B
– –
-33,873
Closed -$2.67M
72 73
74
75 76

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HF
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William Blair & Company's Q1 2021 Portfolio in Review

As of Q1 2021, William Blair & Company held 1,941 positions worth $26.5B, down 2.8% from $27.3B the previous quarter. Its ten largest holdings account for 23% of the portfolio.

William Blair & Company withdrew a net $1.09B in Q1 2021, closing 84 positions and reducing 742 holdings. Its most notable exit was HMS Holdings Corp., an estimated $7.64M position sold in full.

By sector, the portfolio is most concentrated in Technology at 26% of assets, down from 28% a quarter earlier, followed by Healthcare and Financials.

Against the trend, William Blair & Company opened a new position in Oak Street Health, Inc. worth $59.1M.

  • William Blair & Company's largest Q1 2021 buy was Oak Street Health, Inc.: 1,089,318 shares worth $59.1M.
  • William Blair & Company added most to CarMax in Q1 2021, an estimated $73M increase.
  • William Blair & Company's biggest Q1 2021 reduction was Apple, cutting an estimated $449M.
  • William Blair & Company fully exited HMS Holdings Corp. in Q1 2021, selling an estimated $7.64M.
  • William Blair & Company's ten largest holdings make up 23% of its $26.5B portfolio in Q1 2021.
  • William Blair & Company opened 123 new positions and closed 84 in Q1 2021.
  • William Blair & Company's portfolio value fell 2.8% quarter-over-quarter to $26.5B.

Based on William Blair & Company's 13F filing for Q1 2021, filed 13 May 2021.