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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
+12.53%
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
$23.6B
AUM Growth
+$2.6B
Cap. Flow
+$316M
Cap. Flow %
1.34%
Top 10 Hldgs %
26.84%
Holding
1,800
New
126
Increased
679
Reduced
652
Closed
80

Top Buys

Rank Stock Value
1
QDEL icon
QuidelOrtho
QDEL
+$40.3M
2
TDOC icon
Teladoc Health
TDOC
+$32.5M
3
CTAS icon
Cintas
CTAS
+$25.5M
4
ECL icon
Ecolab
ECL
+$25.4M
5
FTV icon
Fortive
FTV
+$24M

Top Sells

Rank Stock Value
1
GS icon
Goldman Sachs
GS
+$46.7M
2
GWRE icon
Guidewire Software
GWRE
+$38.9M
3
ANET icon
Arista Networks
ANET
+$31.4M
4
V icon
Visa
V
+$25.9M
5
PFNX
Pfenex Inc.
PFNX
+$25.4M

Sector Composition

Rank Sector Weight
1 Technology 27.37%
2 Healthcare 19.68%
3 Financials 10.88%
4 Consumer Discretionary 10.56%
5 Industrials 8.4%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow
AYI icon
1126
Acuity Brands
AYI
$10.8B
$311K ﹤0.01%
3,036
+101
+3% +$10.4K
QDEF icon
1127
FlexShares Quality Dividend Defensive Index Fund
QDEF
$564M
$311K ﹤0.01%
7,028
+13
+0.2% +$573
UPLD icon
1128
Upland Software
UPLD
$17.9M
$311K ﹤0.01%
826
-270
-25% -$97.3K
VIVO
1129
DELISTED
Meridian Bioscience Inc
VIVO
$311K ﹤0.01%
18,319
+8,600
+88% +$167K
CNA icon
1130
CNA Financial
CNA
$13.8B
$310K ﹤0.01%
+10,333
New +$333K
UYG icon
1131
ProShares Ultra Financials
UYG
$863M
$310K ﹤0.01%
10,035
-1,860
-16% -$58.6K
CGC
1132
Canopy Growth
CGC
$426M
$309K ﹤0.01%
2,157
+193
+10% +$32.4K
GIL icon
1133
Gildan
GIL
$10.6B
$308K ﹤0.01%
15,680
-7,460
-32% -$138K
LEN.B icon
1134
Lennar Class B
LEN.B
$20.7B
$308K ﹤0.01%
4,933
+12
+0.2% +$648
BIG
1135
DELISTED
Big Lots, Inc.
BIG
$307K ﹤0.01%
6,880
-8
-0.1% -$360
TIF
1136
DELISTED
Tiffany & Co.
TIF
$307K ﹤0.01%
2,651
-9
-0.3% -$1.09K
CDNS icon
1137
Cadence Design Systems
CDNS
$89.2B
$306K ﹤0.01%
2,868
-42
-1% -$4.42K
AQN icon
1138
Algonquin Power & Utilities
AQN
$4.48B
$305K ﹤0.01%
21,004
+8
+0% +$110
HUBG icon
1139
HUB Group
HUBG
$2.55B
$305K ﹤0.01%
12,150
MMS icon
1140
Maximus
MMS
$2.94B
$305K ﹤0.01%
4,455
-134
-3% -$9.86K
BCSF icon
1141
Bain Capital Specialty
BCSF
$821M
$302K ﹤0.01%
29,570
BWX icon
1142
State Street SPDR Bloomberg International Treasury Bond ETF
BWX
$1.31B
$301K ﹤0.01%
10,149
GDYN icon
1143
Grid Dynamics Holdings
GDYN
$644M
$301K ﹤0.01%
38,916
+21,316
+121% +$154K
MCK icon
1144
McKesson
MCK
$99.9B
$298K ﹤0.01%
2,001
-1,331
-40% -$202K
GBCI icon
1145
Glacier Bancorp
GBCI
$6.48B
$297K ﹤0.01%
9,255
-25,644
-73% -$886K
DISH
1146
DELISTED
DISH Network Corp.
DISH
$297K ﹤0.01%
10,236
-250
-2% -$8.25K
DDG
1147
DELISTED
Proshares Short Oil & Gas
DDG
$296K ﹤0.01%
8,520
+2,000
+31% +$60.9K
FEZ icon
1148
State Street SPDR EURO STOXX 50 ETF
FEZ
$4.56B
$295K ﹤0.01%
8,102
-800
-9% -$30K
GOCO
1149
DELISTED
GoHealth
GOCO
$294K ﹤0.01%
+1,504
New +$362K
GBDC icon
1150
Golub Capital BDC
GBDC
$3.48B
$290K ﹤0.01%
21,906
+101
+0.5% +$1.26K

Similar funds

William Blair & Company's Q3 2020 Portfolio in Review

As of Q3 2020, William Blair & Company held 1,800 positions worth $23.6B, up 12% from $21B the previous quarter. Its ten largest holdings account for 27% of the portfolio.

William Blair & Company's Q3 2020 filing shows 126 new, 679 increased, 652 reduced and 80 closed positions. Its largest new stake was Unity: 72,858 shares worth $6.36M. The largest sale was Goldman Sachs, an estimated $46.7M.

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

  • William Blair & Company's largest Q3 2020 buy was Unity: 72,858 shares worth $6.36M.
  • William Blair & Company added most to QuidelOrtho in Q3 2020, an estimated $40.3M increase.
  • William Blair & Company's biggest Q3 2020 reduction was Goldman Sachs, cutting an estimated $46.7M.
  • William Blair & Company fully exited Pfenex Inc. in Q3 2020, selling an estimated $25.4M.
  • William Blair & Company's ten largest holdings make up 27% of its $23.6B portfolio in Q3 2020.
  • William Blair & Company opened 126 new positions and closed 80 in Q3 2020.
  • William Blair & Company's portfolio value rose 12% quarter-over-quarter to $23.6B.

Based on William Blair & Company's 13F filing for Q3 2020, filed 6 Nov 2020.