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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
CHGG icon
1076
Chegg
CHGG
$102M
$705K ﹤0.01%
22,968
-14,032
-38% -$569K
VKTX icon
1077
Viking Therapeutics
VKTX
$4B
$705K ﹤0.01%
153,263
+8,082
+6% +$45.3K
DOC icon
1078
Healthpeak Properties
DOC
$14.8B
$703K ﹤0.01%
19,481
-89
-0.5% -$3.07K
COHU icon
1079
Cohu
COHU
$2.5B
$702K ﹤0.01%
18,428
– –
NI icon
1080
NiSource
NI
$20.4B
$701K ﹤0.01%
25,373
+840
+3% +$21.4K
AQN icon
1081
Algonquin Power & Utilities
AQN
$4.42B
$699K ﹤0.01%
48,356
+900
+2% +$12.9K
AMJ
1082
DELISTED
JP Morgan Alerian MLP Index ETN 5/24/24
AMJ
$698K ﹤0.01%
39,168
-701
-2% -$13K
ZION icon
1083
Zions Bancorporation
ZION
$10.3B
$695K ﹤0.01%
10,996
+67
+0.6% +$4.28K
FBIN icon
1084
Fortune Brands Innovations
FBIN
$6.06B
$694K ﹤0.01%
7,592
-68
-0.9% -$5.89K
IEX icon
1085
IDEX
IEX
$17.3B
$693K ﹤0.01%
2,934
+414
+16% +$94K
VIXY icon
1086
ProShares VIX Short-Term Futures ETF
VIXY
$197M
$690K ﹤0.01%
2,274
-7
-0.3% -$2.54K
SLF icon
1087
Sun Life Financial
SLF
$45.4B
$685K ﹤0.01%
12,292
-1,940
-14% -$107K
CTIC
1088
DELISTED
CTI BioPharma Corp. (DE) Common Stock
CTIC
$685K ﹤0.01%
276,198
+100,000
+57% +$245K
DAL icon
1089
Delta Air Lines
DAL
$60.1B
$684K ﹤0.01%
17,510
-1,172
-6% -$46.9K
MGEE icon
1090
MGE Energy Inc
MGEE
$3.08B
$682K ﹤0.01%
8,292
+150
+2% +$11.5K
SUNS
1091
DELISTED
SLR Senior Investment Corp. Common Stock
SUNS
$680K ﹤0.01%
48,631
– –
UYG icon
1092
ProShares Ultra Financials
UYG
$845M
$679K ﹤0.01%
10,035
– –
JHMM icon
1093
John Hancock Multifactor Mid Cap ETF
JHMM
$6.13B
$678K ﹤0.01%
12,192
+25
+0.2% +$1.36K
MAX icon
1094
MediaAlpha
MAX
$821M
$678K ﹤0.01%
43,918
-131,203
-75% -$2.19M
APP icon
1095
Applovin
APP
$116B
$675K ﹤0.01%
7,166
-1,191
-14% -$111K
BBJP icon
1096
JPMorgan BetaBuilders Japan ETF
BBJP
$18.9B
$671K ﹤0.01%
12,186
+54
+0.4% +$3.08K
GXO icon
1097
GXO Logistics
GXO
$5.55B
$671K ﹤0.01%
7,389
-100
-1% -$8.99K
DDD icon
1098
3D Systems Corp
DDD
$613M
$669K ﹤0.01%
31,066
– –
FINX icon
1099
Global X FinTech ETF
FINX
$166M
$668K ﹤0.01%
16,675
-5,150
-24% -$244K
RWX icon
1100
State Street SPDR Dow Jones International Real Estate ETF
RWX
$270M
$662K ﹤0.01%
18,609
+639
+4% +$23K
42 43
44
45 46

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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.