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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
BND icon
276
Vanguard Total Bond Market
BND
$161B
$9.94M 0.04%
112,662
+22,155
+24% +$1.96M
FTNT icon
277
Fortinet
FTNT
$118B
$9.65M 0.04%
409,595
+8,430
+2% +$218K
CERN
278
DELISTED
Cerner Corp
CERN
$9.56M 0.04%
132,296
+20,522
+18% +$1.46M
TJX icon
279
TJX Companies
TJX
$169B
$9.44M 0.04%
169,584
-10,188
-6% -$549K
VOE icon
280
Vanguard Morningstar Mid-Cap Value ETF
VOE
$24.4B
$9.32M 0.04%
91,993
-34,206
-27% -$3.46M
JBHT icon
281
JB Hunt Transport Services
JBHT
$25.9B
$9.31M 0.04%
73,702
-8,273
-10% -$1.1M
APPF icon
282
AppFolio
APPF
$6.97B
$9.3M 0.04%
65,563
-915
-1% -$141K
C icon
283
Citigroup
C
$231B
$9.23M 0.04%
214,145
-52,352
-20% -$2.61M
WPM icon
284
Wheaton Precious Metals
WPM
$61.3B
$9.05M 0.04%
184,369
-6,934
-4% -$353K
GDX icon
285
VanEck Gold Miners ETF
GDX
$27.8B
$9.03M 0.04%
230,615
+1,500
+0.7% +$61.1K
VOT icon
286
Vanguard Morningstar Mid-Cap Growth ETF
VOT
$20B
$9.02M 0.04%
50,064
-255
-0.5% -$45K
KNSL icon
287
Kinsale Capital Group
KNSL
$8.51B
$8.99M 0.04%
47,296
-394
-0.8% -$72.5K
IRDM icon
288
Iridium Communications
IRDM
$5.26B
$8.99M 0.04%
351,588
+61,422
+21% +$1.69M
ENV
289
DELISTED
ENVESTNET, INC.
ENV
$8.94M 0.04%
115,875
-460
-0.4% -$36.7K
USMV icon
290
iShares MSCI USA Min Vol Factor ETF
USMV
$24.4B
$8.93M 0.04%
140,188
+677
+0.5% +$43K
VRTX icon
291
Vertex Pharmaceuticals
VRTX
$133B
$8.9M 0.04%
32,725
-17
-0.1% -$4.69K
CAG icon
292
Conagra Brands
CAG
$7.16B
$8.89M 0.04%
249,036
+222,807
+849% +$8.16M
PHR icon
293
Phreesia
PHR
$758M
$8.88M 0.04%
276,333
+176,611
+177% +$5.26M
SBAC icon
294
SBA Communications
SBAC
$19.4B
$8.82M 0.04%
27,684
-286
-1% -$87.4K
DVAX
295
DELISTED
Dynavax Technologies
DVAX
$8.8M 0.04%
2,037,208
+10,335
+0.5% +$73.7K
FSLY icon
296
Fastly Inc
FSLY
$4.54B
$8.78M 0.04%
93,673
+16,541
+21% +$1.44M
MMP
297
DELISTED
Magellan Midstream Partners, L.P.
MMP
$8.58M 0.04%
250,956
-3,223
-1% -$128K
IRM icon
298
Iron Mountain
IRM
$37B
$8.55M 0.04%
319,256
+43,370
+16% +$1.23M
TCMD icon
299
Tactile Systems Technology
TCMD
$555M
$8.55M 0.04%
233,628
+19,358
+9% +$709K
AJG icon
300
Arthur J. Gallagher & Co
AJG
$65.5B
$8.54M 0.04%
80,847
-4,943
-6% -$513K
10 11
12
13 14

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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.