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William Blair & Company

William Blair & Company Portfolio holdings

AUM $34.9B
1-Year Est. Return 18.88%
This Fund
S&P 500
This Quarter Est. Return
+8.27%
1 Year Est. Return
+18.88%
3 Year Est. Return
+73.84%
5 Year Est. Return
+90.13%
10 Year Est. Return
+563.35%
AUM
$31.9B
AUM Growth
+$2.51B
Cap. Flow
+$830M
Cap. Flow %
2.6%
Top 10 Hldgs %
23.75%
Holding
2,051
New
174
Increased
889
Reduced
606
Closed
88

Top Buys

Rank Stock Value
1
AMZN icon
Amazon
AMZN
+$66.8M
2
PODD icon
Insulet
PODD
+$47M
3
XMTR icon
Xometry
XMTR
+$44.1M
4
SPY icon
State Street SPDR S&P 500 ETF Trust
SPY
+$43.7M
5
AON icon
Aon
AON
+$36.1M

Top Sells

Rank Stock Value
1
PYPL icon
PayPal
PYPL
+$73.8M
2
ATVI
Activision Blizzard
ATVI
+$46.9M
3
OSH
Oak Street Health, Inc.
OSH
+$43.6M
4
DIS icon
Walt Disney
DIS
+$34M
5
PGR icon
Progressive
PGR
+$32.6M

Sector Composition

Rank Sector Weight
1 Technology 26.2%
2 Healthcare 19.21%
3 Financials 10.7%
4 Consumer Discretionary 10.6%
5 Industrials 10.38%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
RZG icon
1851
Invesco S&P SmallCap 600 Pure Growth ETF
RZG
$141M
$14K ﹤0.01%
255
– –
IPAC icon
1852
iShares Core MSCI Pacific ETF
IPAC
$2.77B
$13K ﹤0.01%
210
– –
MDIV icon
1853
First Trust Exchange-Traded Fund VI Multi-Asset Diversified Income Index Fund
MDIV
$428M
$13K ﹤0.01%
813
– –
XAR icon
1854
State Street SPDR S&P Aerospace & Defense ETF
XAR
$6.49B
$13K ﹤0.01%
113
+9
+9% +$1.07K
AAWW
1855
DELISTED
Atlas Air Worldwide Holdings, Inc.
AAWW
$13K ﹤0.01%
136
– –
AAXJ icon
1856
iShares MSCI All Country Asia ex Japan ETF
AAXJ
$3.77B
$12K ﹤0.01%
143
– –
IDLV icon
1857
Invesco S&P International Developed Low Volatility ETF
IDLV
$348M
$12K ﹤0.01%
378
– –
ISCV icon
1858
iShares Morningstar Small-Cap Value ETF
ISCV
$706M
$12K ﹤0.01%
195
-11
-5% -$652
RWL icon
1859
Invesco S&P 500 Revenue ETF
RWL
$9.86B
$12K ﹤0.01%
+148
New +$11.4K
SLY
1860
DELISTED
SPDR S&P 600 Small Cap ETF (based on S&P SmallCap 600 Index--symbol SML)
SLY
$12K ﹤0.01%
120
– –
IDEV icon
1861
iShares Core MSCI International Developed Markets ETF
IDEV
$32.6B
$11K ﹤0.01%
170
+100
+143% +$6.79K
KXI icon
1862
iShares Global Consumer Staples ETF
KXI
$1.07B
$11K ﹤0.01%
+172
New +$10.7K
PSR icon
1863
Invesco Active US Real Estate Fund
PSR
$60M
$11K ﹤0.01%
94
– –
AMPE
1864
DELISTED
Ampio Pharmaceuticals Inc.
AMPE
$11K ﹤0.01%
67
+17
+34% +$6.34K
USLB
1865
DELISTED
Invesco Russell 1000 Low Beta Equal Weight ETF
USLB
$11K ﹤0.01%
250
– –
CYB
1866
DELISTED
WisdomTree Chinese Yuan Strategy Fund
CYB
$11K ﹤0.01%
400
– –
IYT icon
1867
iShares US Transportation ETF
IYT
$2.29B
$10K ﹤0.01%
148
– –
PIIIW icon
1868
P3 Health Partners Inc Warrant
PIIIW
$179K
$10K ﹤0.01%
+9,666
New +$11.7K
FXU icon
1869
First Trust Utilities AlphaDEX Fund
FXU
$825M
$9K ﹤0.01%
261
– –
IGE icon
1870
iShares North American Natural Resources ETF
IGE
$758M
$9K ﹤0.01%
283
– –
RXI icon
1871
iShares Global Consumer Discretionary ETF
RXI
$278M
$9K ﹤0.01%
50
– –
SCHC icon
1872
Schwab International Small-Cap Equity ETF
SCHC
$5.66B
$9K ﹤0.01%
218
+47
+27% +$1.96K
ANGL icon
1873
VanEck Fallen Angel High Yield Bond ETF
ANGL
$3.06B
$8K ﹤0.01%
+247
New +$8.13K
ELD icon
1874
WisdomTree Emerging Markets Local Debt Fund
ELD
$143M
$8K ﹤0.01%
266
+1
+0.4% +$31
QDF icon
1875
FlexShares Quality Dividend Index Fund
QDF
$2.28B
$8K ﹤0.01%
124
– –
73 74
75
76 77

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William Blair & Company's Q4 2021 Portfolio in Review

As of Q4 2021, William Blair & Company held 2,051 positions worth $31.9B, up 8.5% from $29.4B the previous quarter. Its ten largest holdings account for 24% of the portfolio.

William Blair & Company's Q4 2021 filing shows 174 new, 889 increased, 606 reduced and 88 closed positions. Its largest new stake was Portillo's: 759,814 shares worth $28.5M. The largest sale was PayPal, an estimated $73.8M.

By sector, the portfolio is most concentrated in Technology at 26% of assets, up from 26% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q4 2021 buy was Portillo's: 759,814 shares worth $28.5M.
  • William Blair & Company added most to Amazon in Q4 2021, an estimated $66.8M increase.
  • William Blair & Company's biggest Q4 2021 reduction was PayPal, cutting an estimated $73.8M.
  • William Blair & Company fully exited Asana in Q4 2021, selling an estimated $6.06M.
  • William Blair & Company's ten largest holdings make up 24% of its $31.9B portfolio in Q4 2021.
  • William Blair & Company opened 174 new positions and closed 88 in Q4 2021.
  • William Blair & Company's portfolio value rose 8.5% quarter-over-quarter to $31.9B.

Based on William Blair & Company's 13F filing for Q4 2021, filed 14 Feb 2022.