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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
+10.7%
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
$28.9B
AUM Growth
+$2.35B
Cap. Flow
-$98.3M
Cap. Flow %
-0.34%
Top 10 Hldgs %
23.73%
Holding
1,960
New
105
Increased
655
Reduced
787
Closed
72

Top Buys

Rank Stock Value
1
BALL icon
Ball Corp
BALL
+$39.8M
2
ABNB icon
Airbnb
ABNB
+$37.1M
3
GNRC icon
Generac Holdings
GNRC
+$34.4M
4
U icon
Unity
U
+$29.3M
5
TREX icon
Trex
TREX
+$29M

Top Sells

Rank Stock Value
1
FISV
Fiserv Inc
FISV
+$87.4M
2
TDOC icon
Teladoc Health
TDOC
+$65.6M
3
VRSK icon
Verisk Analytics
VRSK
+$65M
4
AAPL icon
Apple
AAPL
+$52M
5
ACWV icon
iShares MSCI Global Min Vol Factor ETF
ACWV
+$46.5M

Sector Composition

Rank Sector Weight
1 Technology 25.7%
2 Healthcare 19.69%
3 Financials 11.7%
4 Consumer Discretionary 10.72%
5 Industrials 9.79%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
JKHY icon
1101
Jack Henry & Associates
JKHY
$10.8B
$576K ﹤0.01%
3,525
-18
-0.5% -$2.88K
AXSM icon
1102
Axsome Therapeutics
AXSM
$11.2B
$575K ﹤0.01%
8,527
-80
-0.9% -$4.8K
JHMM icon
1103
John Hancock Multifactor Mid Cap ETF
JHMM
$6.18B
$571K ﹤0.01%
11,011
+17
+0.2% +$872
JD icon
1104
JD.com
JD
$39.6B
$568K ﹤0.01%
7,122
+4,003
+128% +$301K
DFAT icon
1105
Dimensional US Targeted Value ETF
DFAT
$14.8B
$565K ﹤0.01%
+12,601
New +$566K
DMRC icon
1106
Digimarc Corp
DMRC
$167M
$562K ﹤0.01%
16,775
+600
+4% +$19.8K
B
1107
Barrick Mining
B
$67.3B
$560K ﹤0.01%
27,084
-43,011
-61% -$970K
IYH icon
1108
iShares US Healthcare ETF
IYH
$3.77B
$560K ﹤0.01%
10,260
– –
RIO icon
1109
Rio Tinto
RIO
$160B
$560K ﹤0.01%
6,677
-210
-3% -$18.1K
RCKT icon
1110
Rocket Pharmaceuticals
RCKT
$367M
$558K ﹤0.01%
12,601
-1,905
-13% -$82.7K
TFX icon
1111
Teleflex
TFX
$5.82B
$558K ﹤0.01%
1,389
-184
-12% -$75.4K
EPI icon
1112
WisdomTree India Earnings Fund ETF
EPI
$2.04B
$557K ﹤0.01%
16,447
-600
-4% -$19.6K
IEX icon
1113
IDEX
IEX
$17.7B
$556K ﹤0.01%
2,528
-1,559
-38% -$345K
STAA icon
1114
STAAR Surgical
STAA
$1.27B
$554K ﹤0.01%
3,630
+750
+26% +$98.8K
MPLX icon
1115
MPLX
MPLX
$60.8B
$549K ﹤0.01%
18,549
+4,353
+31% +$123K
CAI
1116
DELISTED
CAI International, Inc.
CAI
$549K ﹤0.01%
9,806
-198,668
-95% -$8.82M
EFAV icon
1117
iShares MSCI EAFE Min Vol Factor ETF
EFAV
$5.46B
$548K ﹤0.01%
7,250
-30,827
-81% -$2.32M
AVIR icon
1118
Atea Pharmaceuticals
AVIR
$405M
$546K ﹤0.01%
25,418
+16,438
+183% +$494K
IYF icon
1119
iShares US Financials ETF
IYF
$4.44B
$545K ﹤0.01%
6,722
– –
BY icon
1120
Byline Bancorp
BY
$1.78B
$544K ﹤0.01%
24,026
+9,025
+60% +$202K
RDS.B
1121
DELISTED
Royal Dutch Shell PLC ADS Class B
RDS.B
$544K ﹤0.01%
14,016
-29
-0.2% -$1.09K
BNDX icon
1122
Vanguard Total International Bond ETF
BNDX
$83B
$543K ﹤0.01%
9,514
+2,091
+28% +$119K
PSCE icon
1123
Invesco S&P SmallCap Energy ETF
PSCE
$104M
$542K ﹤0.01%
13,508
+8,348
+162% +$293K
JCI icon
1124
Johnson Controls International
JCI
$92.6B
$538K ﹤0.01%
7,841
-14,209
-64% -$917K
QUAL icon
1125
iShares MSCI USA Quality Factor ETF
QUAL
$48.4B
$538K ﹤0.01%
4,051
-48
-1% -$6.15K
43 44
45
46 47

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William Blair & Company's Q2 2021 Portfolio in Review

As of Q2 2021, William Blair & Company held 1,960 positions worth $28.9B, up 8.9% from $26.5B the previous quarter. Its ten largest holdings account for 24% of the portfolio.

William Blair & Company's Q2 2021 filing shows 105 new, 655 increased, 787 reduced and 72 closed positions. Its largest new stake was Luminar Technologies: 36,860 shares worth $12.1M. The largest sale was Fiserv Inc, an estimated $87.4M.

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 Q2 2021 buy was Luminar Technologies: 36,860 shares worth $12.1M.
  • William Blair & Company added most to Ball Corp in Q2 2021, an estimated $39.8M increase.
  • William Blair & Company's biggest Q2 2021 reduction was Fiserv Inc, cutting an estimated $87.4M.
  • William Blair & Company fully exited RealPage, Inc. in Q2 2021, selling an estimated $12.1M.
  • William Blair & Company's ten largest holdings make up 24% of its $28.9B portfolio in Q2 2021.
  • William Blair & Company opened 105 new positions and closed 72 in Q2 2021.
  • William Blair & Company's portfolio value rose 8.9% quarter-over-quarter to $28.9B.

Based on William Blair & Company's 13F filing for Q2 2021, filed 12 Aug 2021.