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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
VCIT icon
326
Vanguard Intermediate-Term Corporate Bond ETF
VCIT
$67.8B
$10.1M 0.03%
105,749
-33,330
-24% -$3.14M
IWO icon
327
iShares Russell 2000 Growth ETF
IWO
$15.1B
$10M 0.03%
32,240
-302
-0.9% -$90.9K
PM icon
328
Philip Morris
PM
$294B
$10M 0.03%
101,312
-45,675
-31% -$4.38M
KMI icon
329
Kinder Morgan
KMI
$71.4B
$9.89M 0.03%
542,404
-46,413
-8% -$827K
AYX
330
DELISTED
Alteryx Inc
AYX
$9.79M 0.03%
113,865
-15,894
-12% -$1.3M
VMI icon
331
Valmont Industries
VMI
$9.5B
$9.71M 0.03%
41,154
+10,786
+36% +$2.61M
APPF icon
332
AppFolio
APPF
$7.22B
$9.66M 0.03%
68,446
+2,212
+3% +$307K
LMT icon
333
Lockheed Martin
LMT
$138B
$9.63M 0.03%
25,445
+2,087
+9% +$802K
MO icon
334
Altria Group
MO
$109B
$9.5M 0.03%
199,161
+45,979
+30% +$2.26M
NTNX icon
335
Nutanix
NTNX
$18.4B
$9.43M 0.03%
246,652
+27,653
+13% +$861K
FND icon
336
Floor & Decor
FND
$6.27B
$9.41M 0.03%
89,060
+1,772
+2% +$184K
MKL icon
337
Markel Group
MKL
$22.8B
$9.4M 0.03%
7,921
+322
+4% +$386K
ARCC icon
338
Ares Capital
ARCC
$14.5B
$9.3M 0.03%
474,691
-20,393
-4% -$395K
NSC icon
339
Norfolk Southern
NSC
$75.9B
$9.26M 0.03%
34,887
-123
-0.4% -$33.9K
GLW icon
340
Corning
GLW
$137B
$9.03M 0.03%
220,759
-14,184
-6% -$618K
AIRG icon
341
Airgain
AIRG
$67.7M
$9.02M 0.03%
437,538
-4,259
-1% -$87.7K
OTRK
342
DELISTED
Ontrak
OTRK
$8.95M 0.03%
3,063
+2,257
+280% +$6.52M
XLC icon
343
State Street Communication Services Select Sector SPDR ETF
XLC
$22.8B
$8.95M 0.03%
110,536
+12,925
+13% +$1.01M
MMP
344
DELISTED
Magellan Midstream Partners, L.P.
MMP
$8.91M 0.03%
182,124
-30,537
-14% -$1.48M
J icon
345
Jacobs Solutions
J
$16.8B
$8.85M 0.03%
80,225
+36,338
+83% +$4.11M
SBAC icon
346
SBA Communications
SBAC
$19.8B
$8.8M 0.03%
27,618
-587
-2% -$176K
GDX icon
347
VanEck Gold Miners ETF
GDX
$26.9B
$8.75M 0.03%
257,375
+4,316
+2% +$158K
NVS icon
348
Novartis
NVS
$288B
$8.71M 0.03%
95,501
-34,468
-27% -$3.07M
XLNX
349
DELISTED
Xilinx Inc
XLNX
$8.7M 0.03%
60,126
-1,913
-3% -$243K
BIDU icon
350
Baidu
BIDU
$35.5B
$8.64M 0.03%
42,361
-328
-0.8% -$65.6K
12 13
14
15 16

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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.