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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

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
UEC icon
1301
Uranium Energy
UEC
$5.54B
$317K ﹤0.01%
111,000
+48,000
+76% +$105K
ATEC icon
1302
Alphatec Holdings
ATEC
$1.49B
$316K ﹤0.01%
20,000
-10,000
-33% -$157K
BFLY icon
1303
Butterfly Network
BFLY
$2.47B
$316K ﹤0.01%
+18,767
New +$371K
VRP icon
1304
Invesco Variable Rate Preferred ETF
VRP
$3.01B
$316K ﹤0.01%
12,216
-6,976
-36% -$180K
FFIV icon
1305
F5
FFIV
$23.8B
$315K ﹤0.01%
1,508
+14
+0.9% +$2.76K
ALLE icon
1306
Allegion
ALLE
$14B
$314K ﹤0.01%
2,503
-116
-4% -$13.4K
CCL icon
1307
Carnival Corporation Ltd
CCL
$38.7B
$313K ﹤0.01%
+11,801
New +$278K
TRI icon
1308
Thomson Reuters
TRI
$44.5B
$313K ﹤0.01%
3,395
+18
+0.5% +$1.6K
FCCO icon
1309
First Community Corp
FCCO
$324M
$312K ﹤0.01%
15,620
GNR icon
1310
State Street SPDR S&P Global Natural Resources ETF
GNR
$4.9B
$311K ﹤0.01%
6,186
+5,652
+1,058% +$278K
GOCO
1311
DELISTED
GoHealth
GOCO
$310K ﹤0.01%
1,770
-1,315
-43% -$265K
QDEF icon
1312
FlexShares Quality Dividend Defensive Index Fund
QDEF
$563M
$309K ﹤0.01%
6,051
-992
-14% -$48.9K
SCHL icon
1313
Scholastic
SCHL
$782M
$307K ﹤0.01%
10,186
-3,150
-24% -$88.6K
NFG icon
1314
National Fuel Gas
NFG
$7.73B
$306K ﹤0.01%
6,120
-15
-0.2% -$681
NWL icon
1315
Newell Brands
NWL
$2.62B
$306K ﹤0.01%
11,428
-1,555
-12% -$38.6K
EWH icon
1316
iShares MSCI Hong Kong ETF
EWH
$1.21B
$305K ﹤0.01%
11,483
VLUE icon
1317
iShares MSCI USA Value Factor ETF
VLUE
$9.73B
$305K ﹤0.01%
2,972
+2,862
+2,602% +$276K
PINC
1318
DELISTED
Premier
PINC
$304K ﹤0.01%
8,980
-1,196
-12% -$41.5K
SCS
1319
DELISTED
Steelcase
SCS
$304K ﹤0.01%
21,108
+368
+2% +$5.21K
STAA icon
1320
STAAR Surgical
STAA
$1.25B
$304K ﹤0.01%
2,880
-1,430
-33% -$143K
CG icon
1321
Carlyle Group
CG
$17.5B
$302K ﹤0.01%
8,225
-1,064
-11% -$37.3K
FDL icon
1322
First Trust Morningstar Dividend Leaders Index Fund
FDL
$7.95B
$302K ﹤0.01%
9,235
+620
+7% +$19.2K
SON icon
1323
Sonoco
SON
$5.75B
$302K ﹤0.01%
4,764
-296
-6% -$18.1K
HRTX icon
1324
Heron Therapeutics
HRTX
$63.8M
$300K ﹤0.01%
18,500
BPMC
1325
DELISTED
Blueprint Medicines
BPMC
$298K ﹤0.01%
3,069
-197
-6% -$19.7K

Similar funds

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.