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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
GSK icon
351
GSK
GSK
$101B
$6.22M 0.03%
132,251
+23,027
+21% +$1.15M
WM icon
352
Waste Management
WM
$90.5B
$6.2M 0.03%
54,795
+626
+1% +$69.2K
CPAY icon
353
Corpay
CPAY
$26.9B
$6.2M 0.03%
26,021
-153
-0.6% -$37.8K
BAX icon
354
Baxter International
BAX
$13.9B
$6.14M 0.03%
76,352
+3,519
+5% +$296K
IVW icon
355
iShares S&P 500 Growth ETF
IVW
$77.3B
$6.07M 0.03%
105,012
-4,736
-4% -$268K
NVRO
356
DELISTED
NEVRO CORP.
NVRO
$6.06M 0.03%
43,531
+1,629
+4% +$218K
BALL icon
357
Ball Corp
BALL
$16.4B
$6.05M 0.03%
72,761
-2,667
-4% -$205K
WY icon
358
Weyerhaeuser
WY
$17.8B
$6.03M 0.03%
211,294
-44,141
-17% -$1.21M
TTWO icon
359
Take-Two Interactive
TTWO
$45.4B
$5.99M 0.03%
36,275
-573
-2% -$93.1K
AMD icon
360
Advanced Micro Devices
AMD
$788B
$5.98M 0.03%
72,984
-542
-0.7% -$40.2K
XBI icon
361
State Street SPDR S&P Biotech ETF
XBI
$10.5B
$5.92M 0.03%
53,105
+29,983
+130% +$3.36M
EOG icon
362
EOG Resources
EOG
$75.1B
$5.91M 0.03%
164,501
-20,192
-11% -$906K
BMRN icon
363
BioMarin Pharmaceuticals
BMRN
$13.6B
$5.9M 0.03%
77,512
-11,950
-13% -$1.21M
XLV icon
364
State Street Health Care Select Sector SPDR ETF
XLV
$44B
$5.89M 0.03%
55,861
-571
-1% -$60.1K
XLU icon
365
State Street Utilities Select Sector SPDR ETF
XLU
$22.8B
$5.83M 0.02%
196,520
+5,706
+3% +$169K
CRSP icon
366
CRISPR Therapeutics
CRSP
$5.22B
$5.83M 0.02%
69,656
+3,413
+5% +$303K
SPCE icon
367
Virgin Galactic
SPCE
$500M
$5.78M 0.02%
15,016
+305
+2% +$116K
TWOU
368
DELISTED
2U Inc
TWOU
$5.76M 0.02%
5,676
-30
-0.5% -$35.7K
CB icon
369
Chubb
CB
$132B
$5.75M 0.02%
49,508
+9,511
+24% +$1.19M
CAI
370
DELISTED
CAI International, Inc.
CAI
$5.74M 0.02%
208,492
-13,661
-6% -$283K
AVGO icon
371
Broadcom
AVGO
$1.98T
$5.71M 0.02%
156,680
+26,520
+20% +$888K
GIS icon
372
General Mills
GIS
$20.4B
$5.66M 0.02%
91,708
+11,031
+14% +$689K
MUB icon
373
iShares National Muni Bond ETF
MUB
$45.9B
$5.62M 0.02%
48,477
-55,322
-53% -$6.43M
TEL icon
374
TE Connectivity
TEL
$62B
$5.58M 0.02%
57,089
-25,581
-31% -$2.35M
THS
375
DELISTED
Treehouse Foods
THS
$5.57M 0.02%
137,439
-24,736
-15% -$1.05M
13 14
15
16 17

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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.