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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
CHWY icon
51
Chewy
CHWY
$9.2B
$126M 0.44%
1,575,378
+232,204
+17% +$18M
TDG icon
52
TransDigm Group
TDG
$68.7B
$119M 0.41%
183,151
-1,814
-1% -$1.14M
KRNT icon
53
Kornit Digital
KRNT
$815M
$116M 0.4%
933,372
+68,940
+8% +$7.28M
IVV icon
54
iShares Core S&P 500 ETF
IVV
$902B
$113M 0.39%
263,660
+28,196
+12% +$11.8M
PG icon
55
Procter & Gamble
PG
$338B
$112M 0.39%
828,296
-19,632
-2% -$2.66M
SPLK
56
DELISTED
Splunk Inc
SPLK
$110M 0.38%
760,476
+79,671
+12% +$10.1M
CTAS icon
57
Cintas
CTAS
$82.1B
$110M 0.38%
1,149,980
+77,632
+7% +$6.88M
WMT icon
58
Walmart Inc
WMT
$901B
$110M 0.38%
2,336,214
+137,448
+6% +$6.4M
ITW icon
59
Illinois Tool Works
ITW
$83.5B
$108M 0.38%
485,043
-8,557
-2% -$1.96M
UNP icon
60
Union Pacific
UNP
$174B
$108M 0.37%
488,917
+6,882
+1% +$1.53M
VEA icon
61
Vanguard FTSE Developed Markets ETF
VEA
$236B
$106M 0.37%
2,057,922
-64,930
-3% -$3.35M
APH icon
62
Amphenol
APH
$206B
$105M 0.36%
3,078,356
-49,086
-2% -$1.66M
FTV icon
63
Fortive
FTV
$18.6B
$103M 0.36%
1,962,016
-67,705
-3% -$3.65M
AME icon
64
Ametek
AME
$58.8B
$102M 0.35%
762,927
-5,648
-0.7% -$756K
NVDA icon
65
NVIDIA
NVDA
$5.27T
$101M 0.35%
5,041,400
+166,000
+3% +$2.66M
GSHD icon
66
Goosehead Insurance
GSHD
$2.32B
$98.5M 0.34%
773,580
-18,255
-2% -$1.86M
AXP icon
67
American Express
AXP
$230B
$97.3M 0.34%
588,895
+6,495
+1% +$1.02M
ATVI
68
DELISTED
Activision Blizzard
ATVI
$96.4M 0.33%
1,010,189
+9,244
+0.9% +$876K
NOW icon
69
ServiceNow
NOW
$132B
$96.1M 0.33%
874,335
+6,880
+0.8% +$697K
BMY icon
70
Bristol-Myers Squibb
BMY
$130B
$95.9M 0.33%
1,434,536
+8,330
+0.6% +$543K
EW icon
71
Edwards Lifesciences
EW
$54B
$95.7M 0.33%
924,413
+28,241
+3% +$2.66M
YETI icon
72
Yeti Holdings
YETI
$3.85B
$94.6M 0.33%
1,030,580
+133,383
+15% +$11.6M
KO icon
73
Coca-Cola
KO
$372B
$94.4M 0.33%
1,743,851
+238,448
+16% +$13M
ROKU icon
74
Roku
ROKU
$22.4B
$91.5M 0.32%
199,228
+1,814
+0.9% +$642K
BX icon
75
Blackstone
BX
$110B
$91.3M 0.32%
940,008
+4,811
+0.5% +$427K
1 2
3
4 5

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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.