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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
EWO icon
1351
iShares MSCI Austria ETF
EWO
$187M
$146K ﹤0.01%
10,000
– –
PRFZ icon
1352
Invesco FTSE RAFI US 1500 Small-Mid ETF
PRFZ
$2.9B
$144K ﹤0.01%
6,150
+5,580
+979% +$132K
RPG icon
1353
Invesco S&P 500 Pure Growth ETF
RPG
$2.07B
$144K ﹤0.01%
5,085
-9,600
-65% -$267K
SPIB icon
1354
State Street SPDR Portfolio Intermediate Term Corporate Bond ETF
SPIB
$11.5B
$144K ﹤0.01%
3,907
+1,934
+98% +$71.2K
DISCK
1355
DELISTED
Discovery, Inc. Series C Common Stock
DISCK
$144K ﹤0.01%
7,344
-3,713
-34% -$73.3K
KNOW
1356
DELISTED
Direxion All Cap Insider Sentiment Shares
KNOW
$144K ﹤0.01%
+4,228
New +$146K
RWR icon
1357
State Street SPDR Dow Jones REIT ETF
RWR
$1.87B
$143K ﹤0.01%
1,833
-451
-20% -$35.9K
MRO
1358
DELISTED
Marathon Oil Corporation
MRO
$142K ﹤0.01%
34,838
-786
-2% -$4.15K
LSXMA
1359
DELISTED
Liberty Media Corporation Series A Liberty SiriusXM Common Stock
LSXMA
$142K ﹤0.01%
5,826
-96
-2% -$2.47K
OFS icon
1360
OFS Capital
OFS
$48.6M
$141K ﹤0.01%
29,947
+6,447
+27% +$29.5K
SCWX
1361
DELISTED
SecureWorks Corp Class A Common Stock
SCWX
$141K ﹤0.01%
12,354
-4,000
-24% -$48.5K
MFNC
1362
DELISTED
Mackinac Financial Corporation
MFNC
$141K ﹤0.01%
14,568
– –
RDVY icon
1363
First Trust Rising Dividend Achievers ETF
RDVY
$25.7B
$140K ﹤0.01%
4,271
-370
-8% -$12K
TACO
1364
DELISTED
Del Taco Restaurants, Inc. Common Stock
TACO
$139K ﹤0.01%
17,000
– –
EWC icon
1365
iShares MSCI Canada ETF
EWC
$6.51B
$138K ﹤0.01%
5,022
+1,557
+45% +$43K
GWRS icon
1366
Global Water Resources
GWRS
$219M
$138K ﹤0.01%
12,775
– –
MDRX
1367
DELISTED
Veradigm Inc. Common Stock
MDRX
$138K ﹤0.01%
16,945
+2,230
+15% +$18.2K
EQX icon
1368
Equinox Gold
EQX
$13.5B
$137K ﹤0.01%
+11,741
New +$141K
EUFN icon
1369
iShares MSCI Europe Financials ETF
EUFN
$4.29B
$137K ﹤0.01%
9,973
– –
ICSH icon
1370
iShares Ultra Short Duration Bond Active ETF
ICSH
$8.4B
$137K ﹤0.01%
2,714
– –
IEA
1371
DELISTED
Infrastructure and Energy Alternatives, Inc. Common Stock
IEA
$137K ﹤0.01%
+23,000
New +$99.2K
SCS
1372
DELISTED
Steelcase
SCS
$133K ﹤0.01%
13,200
+243
+2% +$2.61K
ARDX icon
1373
Ardelyx
ARDX
$1.03B
$131K ﹤0.01%
25,000
– –
TCS
1374
DELISTED
THE CONTAINER STORE GROUP, INC.
TCS
$130K ﹤0.01%
1,400
-12
-0.8% -$772
EWA icon
1375
iShares MSCI Australia ETF
EWA
$1.46B
$129K ﹤0.01%
6,534
+1,900
+41% +$38.5K
53 54
55
56 57

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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.