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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
EHC icon
201
Encompass Health
EHC
$12.3B
$18.1M 0.08%
350,435
+102,478
+41% +$5.26M
IWF icon
202
iShares Russell 1000 Growth ETF
IWF
$128B
$17.9M 0.08%
330,080
+4,264
+1% +$225K
BDX icon
203
Becton Dickinson
BDX
$50B
$17.8M 0.08%
78,630
+5,109
+7% +$1.26M
SMAR
204
DELISTED
Smartsheet Inc.
SMAR
$17.5M 0.07%
353,172
-8,892
-2% -$429K
XOM icon
205
ExxonMobil
XOM
$657B
$17.4M 0.07%
505,477
+8,865
+2% +$362K
CMG icon
206
Chipotle Mexican Grill
CMG
$41.3B
$17.2M 0.07%
690,450
-56,950
-8% -$1.37M
RDFN
207
DELISTED
Redfin
RDFN
$17M 0.07%
341,446
+1,229
+0.4% +$54.4K
MDY icon
208
State Street SPDR S&P MIDCAP 400 ETF Trust
MDY
$27.2B
$16.9M 0.07%
49,798
-3,166
-6% -$1.08M
DIA icon
209
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
$48.2B
$16.9M 0.07%
60,759
+6,643
+12% +$1.81M
TENB icon
210
Tenable Holdings
TENB
$4.08B
$16.8M 0.07%
444,625
-361
-0.1% -$12.4K
EQIX icon
211
Equinix
EQIX
$105B
$16.3M 0.07%
21,414
+413
+2% +$312K
CAT icon
212
Caterpillar
CAT
$393B
$16.2M 0.07%
108,889
+6,411
+6% +$901K
PXD
213
DELISTED
Pioneer Natural Resource Co.
PXD
$16.2M 0.07%
188,580
-7,169
-4% -$706K
PLNT icon
214
Planet Fitness
PLNT
$3.65B
$16.1M 0.07%
260,822
-3,761
-1% -$216K
VTI icon
215
Vanguard Morningstar Total Stock Market ETF
VTI
$691B
$16.1M 0.07%
94,285
+2,850
+3% +$479K
OPRX icon
216
OptimizeRx
OPRX
$132M
$16M 0.07%
765,148
+64,569
+9% +$1.11M
LMBS icon
217
First Trust Exchange-Traded Fund IV First Trust Low Duration Opportunities ETF
LMBS
$6.39B
$15.7M 0.07%
303,733
+301,000
+11,014% +$15.6M
BILL icon
218
BILL Holdings
BILL
$4.85B
$15.4M 0.07%
153,673
+142,382
+1,261% +$13M
JLL icon
219
Jones Lang LaSalle
JLL
$16.7B
$15.2M 0.06%
158,595
+143,246
+933% +$14.4M
EL icon
220
Estee Lauder
EL
$31.7B
$15.1M 0.06%
69,399
+940
+1% +$193K
CONE
221
DELISTED
CyrusOne Inc Common Stock
CONE
$14.8M 0.06%
211,114
+11,625
+6% +$912K
SPTI icon
222
State Street SPDR Portfolio Intermediate Term Treasury ETF
SPTI
$10.6B
$14.7M 0.06%
442,623
+16,935
+4% +$563K
RTX icon
223
RTX Corp
RTX
$300B
$14.7M 0.06%
255,248
-64,518
-20% -$3.93M
DE icon
224
Deere & Co
DE
$167B
$14.7M 0.06%
66,196
+2,280
+4% +$440K
QNST icon
225
QuinStreet
QNST
$1.19B
$14.6M 0.06%
918,554
+67,609
+8% +$878K
7 8
9
10 11

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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.