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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
RPV icon
1376
Invesco S&P 500 Pure Value ETF
RPV
$1.73B
$129K ﹤0.01%
2,632
+452
+21% +$22.5K
GUNR icon
1377
FlexShares Global Upstream Natural Resources Index Fund
GUNR
$7.09B
$127K ﹤0.01%
4,558
-1,320
-22% -$38.5K
BXMT icon
1378
Blackstone Mortgage Trust
BXMT
$2.41B
$126K ﹤0.01%
5,740
-2,935
-34% -$68.7K
FHN icon
1379
First Horizon
FHN
$12.3B
$124K ﹤0.01%
13,106
+2,821
+27% +$26.5K
INDA icon
1380
iShares MSCI India ETF
INDA
$6.58B
$124K ﹤0.01%
3,650
+157
+4% +$5.14K
IYE icon
1381
iShares US Energy ETF
IYE
$1.8B
$124K ﹤0.01%
7,774
+2,044
+36% +$38.6K
PMD
1382
DELISTED
Psychemedics Corporation
PMD
$124K ﹤0.01%
28,150
-13,500
-32% -$65.8K
VAW icon
1383
Vanguard Materials ETF
VAW
$3.07B
$123K ﹤0.01%
915
-113
-11% -$15K
DVN icon
1384
Devon Energy
DVN
$49.3B
$122K ﹤0.01%
12,857
+1,206
+10% +$12.7K
SHE icon
1385
State Street SPDR MSCI USA Gender Diversity ETF
SHE
$337M
$121K ﹤0.01%
1,579
+354
+29% +$26.5K
TDW icon
1386
Tidewater
TDW
$4.56B
$121K ﹤0.01%
18,006
– –
CWI icon
1387
State Street SPDR MSCI ACWI ex-US ETF
CWI
$2.87B
$120K ﹤0.01%
4,977
– –
SPIP icon
1388
State Street SPDR Portfolio TIPS ETF
SPIP
$1.01B
$120K ﹤0.01%
3,903
+617
+19% +$19K
WBD icon
1389
Warner Bros
WBD
$69.3B
$120K ﹤0.01%
5,525
-13,061
-70% -$285K
HYS icon
1390
PIMCO 0-5 Year High Yield Corporate Bond Index Exchange-Traded Fund
HYS
$1.77B
$117K ﹤0.01%
1,247
– –
WES icon
1391
Western Midstream Partners
WES
$19.9B
$116K ﹤0.01%
14,454
-2,495
-15% -$22.5K
CRON
1392
Cronos Group
CRON
$1.17B
$115K ﹤0.01%
22,967
– –
SJNK icon
1393
State Street SPDR Bloomberg Short Term High Yield Bond ETF
SJNK
$4.8B
$115K ﹤0.01%
4,429
-611
-12% -$15.8K
IXJ icon
1394
iShares Global Healthcare ETF
IXJ
$4.23B
$114K ﹤0.01%
1,588
– –
NEAR icon
1395
iShares Short Maturity Bond ETF
NEAR
$4.88B
$112K ﹤0.01%
2,245
-2,280
-50% -$114K
IOO icon
1396
iShares Global 100 ETF
IOO
$9.43B
$111K ﹤0.01%
1,972
+780
+65% +$44K
ING icon
1397
ING
ING
$102B
$109K ﹤0.01%
15,395
-202
-1% -$1.54K
GME icon
1398
GameStop
GME
$8.32B
$108K ﹤0.01%
42,428
-1,000
-2% -$1.45K
XLRE icon
1399
State Street Real Estate Select Sector SPDR ETF
XLRE
$8.56B
$108K ﹤0.01%
3,065
-3,319
-52% -$118K
DBEU icon
1400
Xtrackers MSCI Europe Hedged Equity ETF
DBEU
$798M
$106K ﹤0.01%
3,866
– –
54 55
56
57 58

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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.