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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
+13.98%
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
$27.3B
AUM Growth
+$3.7B
Cap. Flow
+$865M
Cap. Flow %
3.17%
Top 10 Hldgs %
25.38%
Holding
1,900
New
178
Increased
749
Reduced
623
Closed
72

Top Buys

Rank Stock Value
1
SPLK
Splunk Inc
SPLK
+$77.8M
2
GD icon
General Dynamics
GD
+$49.6M
3
ROK icon
Rockwell Automation
ROK
+$43.3M
4
LMBS icon
First Trust Exchange-Traded Fund IV First Trust Low Duration Opportunities ETF
LMBS
+$32.3M
5
JPM icon
JPMorgan Chase
JPM
+$30.6M

Top Sells

Rank Stock Value
1
WORK
Slack Technologies, Inc.
WORK
+$24.2M
2
NTRS icon
Northern Trust
NTRS
+$24.1M
3
BKNG icon
Booking.com
BKNG
+$22.5M
4
EXEL icon
Exelixis
EXEL
+$17.5M
5
DOCU
DocuSign
DOCU
+$15M

Sector Composition

Rank Sector Weight
1 Technology 27.82%
2 Healthcare 18.6%
3 Financials 11.15%
4 Consumer Discretionary 10.38%
5 Industrials 8.96%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
QCLN icon
1726
First Trust NASDAQ Clean Edge Green Energy Index Fund
QCLN
$632M
$7K ﹤0.01%
100
– –
XOP icon
1727
State Street SPDR S&P Oil & Gas Exploration & Production ETF
XOP
$3.68B
$7K ﹤0.01%
126
-75
-37% -$3.8K
AIA icon
1728
iShares Asia 50 ETF
AIA
$5.04B
$6K ﹤0.01%
66
– –
CXSE icon
1729
WisdomTree Trust WisdomTree China ex-State-Owned Enterprises Fund
CXSE
$501M
$6K ﹤0.01%
+95
New +$5.83K
DFE icon
1730
WisdomTree Europe SmallCap Dividend Fund
DFE
$168M
$6K ﹤0.01%
95
– –
FNCL icon
1731
Fidelity MSCI Financials Index ETF
FNCL
$2.42B
$6K ﹤0.01%
+150
New +$5.73K
GSLC icon
1732
Goldman Sachs ActiveBeta US Large Cap Equity ETF
GSLC
$16B
$6K ﹤0.01%
+78
New +$5.61K
IXP icon
1733
iShares Global Comm Services ETF
IXP
$561M
$6K ﹤0.01%
85
– –
KBE icon
1734
State Street SPDR S&P Bank ETF
KBE
$1.74B
$6K ﹤0.01%
150
– –
PWV icon
1735
Invesco Large Cap Value ETF
PWV
$1.78B
$6K ﹤0.01%
156
– –
QDF icon
1736
FlexShares Quality Dividend Index Fund
QDF
$2.28B
$6K ﹤0.01%
124
– –
XHS icon
1737
State Street SPDR S&P Health Care Services ETF
XHS
$207M
$6K ﹤0.01%
60
– –
ASRT
1738
DELISTED
Assertio
ASRT
$5K ﹤0.01%
220
– –
GBIL icon
1739
Goldman Sachs Access Treasury 0-1 Year ETF
GBIL
$7.59B
$5K ﹤0.01%
+49
New +$4.91K
RSPS icon
1740
Invesco S&P 500 Equal Weight Consumer Staples ETF
RSPS
$246M
$5K ﹤0.01%
175
– –
SPEU icon
1741
State Street SPDR Portfolio Europe ETF
SPEU
$742M
$5K ﹤0.01%
135
– –
SPXU icon
1742
ProShares UltraPro Short S&P 500
SPXU
$385M
$5K ﹤0.01%
8
-8
-50% -$5.74K
IDLB
1743
DELISTED
Invesco FTSE International Low Beta Equal Weight ETF
IDLB
$5K ﹤0.01%
180
– –
FXO icon
1744
First Trust Financials AlphaDEX Fund
FXO
$1.13B
$4K ﹤0.01%
115
– –
IDEV icon
1745
iShares Core MSCI International Developed Markets ETF
IDEV
$32.7B
$4K ﹤0.01%
70
– –
LEGR icon
1746
First Trust Indxx Innovative Transaction & Process ETF
LEGR
$133M
$4K ﹤0.01%
100
– –
PFM icon
1747
Invesco Dividend Achievers ETF
PFM
$811M
$4K ﹤0.01%
+111
New +$3.53K
PSL icon
1748
Invesco Dorsey Wright Consumer Staples Momentum ETF
PSL
$83.4M
$4K ﹤0.01%
44
– –
EIS icon
1749
iShares MSCI Israel ETF
EIS
$899M
$3K ﹤0.01%
50
– –
FXN icon
1750
First Trust Energy AlphaDEX Fund
FXN
$388M
$3K ﹤0.01%
419
– –
68 69
70
71 72

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William Blair & Company's Q4 2020 Portfolio in Review

As of Q4 2020, William Blair & Company held 1,900 positions worth $27.3B, up 16% from $23.6B the previous quarter. Its ten largest holdings account for 25% of the portfolio.

William Blair & Company deployed $865M of net new capital in Q4 2020, opening 178 new positions and adding to 749 existing holdings. Its largest new stake was Seagen Inc. Common Stock: 91,539 shares worth $16M.

By sector, the portfolio is most concentrated in Technology at 28% of assets, up from 27% a quarter earlier, followed by Healthcare and Financials.

On the sell side, the largest reduction was Slack Technologies, Inc., an estimated $24.2M trimmed.

  • William Blair & Company's largest Q4 2020 buy was Seagen Inc. Common Stock: 91,539 shares worth $16M.
  • William Blair & Company added most to Splunk Inc in Q4 2020, an estimated $77.8M increase.
  • William Blair & Company's biggest Q4 2020 reduction was Slack Technologies, Inc., cutting an estimated $24.2M.
  • William Blair & Company fully exited Dunkin' Brands Group, Inc. in Q4 2020, selling an estimated $12.1M.
  • William Blair & Company's ten largest holdings make up 25% of its $27.3B portfolio in Q4 2020.
  • William Blair & Company opened 178 new positions and closed 72 in Q4 2020.
  • William Blair & Company's portfolio value rose 16% quarter-over-quarter to $27.3B.

Based on William Blair & Company's 13F filing for Q4 2020, filed 9 Feb 2021.