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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
BFAM icon
701
Bright Horizons
BFAM
$3.85B
$2.02M 0.01%
13,739
-4,965
-27% -$743K
EWJ icon
702
iShares MSCI Japan ETF
EWJ
$23.2B
$2.02M 0.01%
29,897
-36
-0.1% -$2.46K
SOXX icon
703
iShares Semiconductor ETF
SOXX
$46.6B
$2.02M 0.01%
13,317
-1,263
-9% -$181K
SLB icon
704
SLB Ltd
SLB
$77.3B
$2.01M 0.01%
62,801
-54,371
-46% -$1.67M
LNG icon
705
Cheniere Energy
LNG
$55B
$2M 0.01%
23,073
+1,701
+8% +$138K
VAPO
706
DELISTED
Vapotherm, Inc. Common Stock
VAPO
$2M 0.01%
10,561
+823
+8% +$140K
ARKK icon
707
ARK Innovation ETF
ARKK
$6.54B
$1.98M 0.01%
15,169
+3,068
+25% +$358K
LRCX icon
708
Lam Research
LRCX
$422B
$1.98M 0.01%
30,390
-33,150
-52% -$2.09M
CSX icon
709
CSX Corp
CSX
$92.9B
$1.95M 0.01%
60,771
-7,200
-11% -$237K
ED icon
710
Consolidated Edison
ED
$40.1B
$1.94M 0.01%
27,049
-612
-2% -$47K
NBIX icon
711
Neurocrine Biosciences
NBIX
$15.3B
$1.94M 0.01%
19,915
+248
+1% +$23.8K
KYNB
712
Kyntra Bio
KYNB
$28.5M
$1.93M 0.01%
2,894
-3
-0.1% -$1.73K
DGX icon
713
Quest Diagnostics
DGX
$26.1B
$1.93M 0.01%
14,593
+2,289
+19% +$300K
NLY icon
714
Annaly Capital Management
NLY
$17.6B
$1.92M 0.01%
54,124
+21,002
+63% +$763K
MINT icon
715
PIMCO Enhanced Short Maturity Active Exchange-Traded Fund
MINT
$17.1B
$1.92M 0.01%
18,843
-5,653
-23% -$576K
LGND icon
716
Ligand Pharmaceuticals
LGND
$5.76B
$1.92M 0.01%
23,452
-22,963
-49% -$1.91M
BHP icon
717
BHP
BHP
$222B
$1.92M 0.01%
29,507
+8,418
+40% +$557K
MORN icon
718
Morningstar
MORN
$7.76B
$1.91M 0.01%
7,422
-819
-10% -$199K
AVTR icon
719
Avantor
AVTR
$9.37B
$1.9M 0.01%
53,630
+36,227
+208% +$1.17M
WHR icon
720
Whirlpool
WHR
$2.79B
$1.89M 0.01%
8,658
+90
+1% +$21K
FBC
721
DELISTED
Flagstar Bancorp, Inc. New
FBC
$1.88M 0.01%
44,500
-6,900
-13% -$312K
AAP icon
722
Advance Auto Parts
AAP
$3.46B
$1.88M 0.01%
9,162
-1,335
-13% -$262K
ZD icon
723
Ziff Davis
ZD
$1.92B
$1.88M 0.01%
15,714
-13,025
-45% -$1.43M
IYR icon
724
iShares US Real Estate ETF
IYR
$4.58B
$1.87M 0.01%
18,342
+11,754
+178% +$1.17M
DMTK
725
DELISTED
DermTech, Inc. Common Stock
DMTK
$1.86M 0.01%
44,730
+500
+1% +$20.5K
27 28
29
30 31

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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.