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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
RWO icon
451
State Street SPDR Dow Jones Global Real Estate ETF
RWO
$1.28B
$3.85M 0.02%
97,391
-63,676
-40% -$2.55M
MKTX icon
452
MarketAxess Holdings
MKTX
$5.72B
$3.79M 0.02%
7,879
-866
-10% -$428K
ES icon
453
Eversource Energy
ES
$26.9B
$3.74M 0.02%
44,736
-1,777
-4% -$152K
WPC icon
454
W.P. Carey
WPC
$16.1B
$3.73M 0.02%
58,411
+197
+0.3% +$13.3K
CDW icon
455
CDW
CDW
$17.1B
$3.69M 0.02%
30,847
+2,772
+10% +$317K
CP icon
456
Canadian Pacific Kansas City
CP
$81.5B
$3.67M 0.02%
60,320
+650
+1% +$37.1K
TBF icon
457
ProShares Short 20+ Year Treasury ETF
TBF
$106M
$3.67M 0.02%
238,755
-16,625
-7% -$253K
ZEN
458
DELISTED
ZENDESK INC
ZEN
$3.66M 0.02%
35,549
+1,515
+4% +$142K
PFFD icon
459
Global X US Preferred ETF
PFFD
$2.17B
$3.65M 0.02%
147,225
+6,948
+5% +$170K
BDSI
460
DELISTED
BioDelivery Sciences International, Inc.
BDSI
$3.63M 0.02%
974,533
+34,579
+4% +$147K
MORN icon
461
Morningstar
MORN
$7.41B
$3.62M 0.02%
22,513
-439
-2% -$69.4K
TRU icon
462
TransUnion
TRU
$15.2B
$3.61M 0.02%
42,899
-2,657
-6% -$229K
PRO
463
DELISTED
PROS Holdings
PRO
$3.58M 0.02%
111,962
-34,104
-23% -$1.29M
FSLR icon
464
First Solar
FSLR
$24.4B
$3.56M 0.02%
53,810
+4,050
+8% +$269K
RGLD icon
465
Royal Gold
RGLD
$19.7B
$3.53M 0.02%
29,400
– –
IWN icon
466
iShares Russell 2000 Value ETF
IWN
$14.6B
$3.51M 0.01%
35,365
-2,327
-6% -$236K
GRUB
467
DELISTED
Just Eat Takeaway.com N.V. American Depositary Shares
GRUB
$3.51M 0.01%
24,283
-386
-2% -$55.7K
TRHC
468
DELISTED
Tabula Rasa HealthCare, Inc. Common Stock
TRHC
$3.48M 0.01%
85,363
+448
+0.5% +$22.3K
AEP icon
469
American Electric Power
AEP
$67.9B
$3.46M 0.01%
42,273
+23,001
+119% +$1.89M
LHX icon
470
L3Harris
LHX
$54.1B
$3.43M 0.01%
20,199
+10,649
+112% +$1.87M
DGX icon
471
Quest Diagnostics
DGX
$26.2B
$3.41M 0.01%
29,809
+17,281
+138% +$2.04M
VB icon
472
Vanguard Morningstar Small-Cap ETF
VB
$83B
$3.4M 0.01%
22,128
-4,339
-16% -$666K
SU icon
473
Suncor Energy
SU
$74.7B
$3.4M 0.01%
277,862
-160,364
-37% -$2.51M
PDP icon
474
Invesco Dorsey Wright Momentum ETF
PDP
$1.52B
$3.39M 0.01%
44,400
+100
+0.2% +$7.36K
TTE icon
475
TotalEnergies
TTE
$194B
$3.35M 0.01%
97,655
-22,390
-19% -$853K
17 18
19
20 21

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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.