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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
AWRE icon
1601
Aware
AWRE
$26.4M
$88K ﹤0.01%
23,664
– –
BKLN icon
1602
Invesco Senior Loan ETF
BKLN
$6.76B
$87K ﹤0.01%
3,920
-367
-9% -$8.14K
CWI icon
1603
State Street SPDR MSCI ACWI ex-US ETF
CWI
$2.88B
$87K ﹤0.01%
2,883
-1,650
-36% -$49.7K
MDYG icon
1604
State Street SPDR S&P 400 Mid Cap Growth ETF
MDYG
$2.97B
$87K ﹤0.01%
1,118
-123
-10% -$9.47K
IGF icon
1605
iShares Global Infrastructure ETF
IGF
$10.7B
$86K ﹤0.01%
1,897
– –
IOO icon
1606
iShares Global 100 ETF
IOO
$9.46B
$85K ﹤0.01%
1,201
+11
+0.9% +$766
FTSM icon
1607
First Trust Enhanced Short Maturity ETF
FTSM
$6.54B
$83K ﹤0.01%
1,381
-1,475
-52% -$88.5K
SPAB icon
1608
State Street SPDR Portfolio Aggregate Bond ETF
SPAB
$9.95B
$82K ﹤0.01%
2,722
– –
CRIS icon
1609
Curis
CRIS
$3.91M
$81K ﹤0.01%
+25
New +$113K
EES icon
1610
WisdomTree US SmallCap Earnings Fund
EES
$736M
$80K ﹤0.01%
1,611
– –
JNK icon
1611
State Street SPDR Bloomberg High Yield Bond ETF
JNK
$7.33B
$80K ﹤0.01%
725
-55
-7% -$6K
DON icon
1612
WisdomTree US MidCap Dividend Fund
DON
$4.11B
$79K ﹤0.01%
1,877
– –
VOOG icon
1613
Vanguard S&P 500 Growth ETF
VOOG
$27.4B
$77K ﹤0.01%
1,770
-324
-15% -$13.5K
NDRA icon
1614
ENDRA Life Sciences
NDRA
$5.68M
$76K ﹤0.01%
1
– –
EWX icon
1615
State Street SPDR S&P Emerging Markets Small Cap ETF
EWX
$701M
$75K ﹤0.01%
1,220
– –
IPAY icon
1616
Amplify Mobile Payments ETF
IPAY
$188M
$75K ﹤0.01%
1,067
-2
-0.2% -$140
SAN icon
1617
Banco Santander
SAN
$211B
$75K ﹤0.01%
19,295
+1,887
+11% +$7.32K
SPMD icon
1618
State Street SPDR Portfolio S&P 400 Mid Cap ETF
SPMD
$19.1B
$74K ﹤0.01%
1,572
+272
+21% +$12.9K
IFRA icon
1619
iShares US Infrastructure ETF
IFRA
$4.62B
$72K ﹤0.01%
2,028
+420
+26% +$15K
BGY icon
1620
BlackRock Enhanced International Dividend Trust
BGY
$536M
$71K ﹤0.01%
10,787
– –
SLYV icon
1621
State Street SPDR S&P 600 Small Cap Value ETF
SLYV
$5.12B
$71K ﹤0.01%
824
– –
PBW icon
1622
Invesco WilderHill Clean Energy ETF
PBW
$461M
$70K ﹤0.01%
753
+27
+4% +$2.34K
SJNK icon
1623
State Street SPDR Bloomberg Short Term High Yield Bond ETF
SJNK
$4.81B
$70K ﹤0.01%
2,531
-1
-0% -$27
IYG icon
1624
iShares US Financial Services ETF
IYG
$2.24B
$69K ﹤0.01%
1,110
+549
+98% +$33.5K
MCF
1625
DELISTED
Contango Oil & Gas Co.
MCF
$69K ﹤0.01%
+16,000
New +$67.1K
63 64
65
66 67

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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.