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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
IEMG icon
226
iShares Core MSCI Emerging Markets ETF
IEMG
$158B
$19.8M 0.07%
295,915
+43,560
+17% +$2.87M
IEFA icon
227
iShares Core MSCI EAFE ETF
IEFA
$195B
$19.3M 0.07%
257,372
+45,464
+21% +$3.43M
CONE
228
DELISTED
CyrusOne Inc Common Stock
CONE
$18.8M 0.07%
263,350
+30,992
+13% +$2.26M
OMC icon
229
Omnicom Group
OMC
$23.4B
$18.8M 0.07%
234,955
-5,944
-2% -$483K
GE icon
230
GE Aerospace
GE
$381B
$18.8M 0.07%
279,792
+56,409
+25% +$3.76M
VO icon
231
Vanguard Morningstar Mid-Cap ETF
VO
$110B
$18.4M 0.06%
310,904
+4,672
+2% +$271K
AMGN icon
232
Amgen
AMGN
$226B
$18.4M 0.06%
75,345
-4,548
-6% -$1.12M
TENB icon
233
Tenable Holdings
TENB
$4.06B
$18.4M 0.06%
443,807
+8,396
+2% +$341K
TROW icon
234
T. Rowe Price
TROW
$23.8B
$18.2M 0.06%
91,896
+1,371
+2% +$256K
EQIX icon
235
Equinix
EQIX
$105B
$17.9M 0.06%
22,348
+146
+0.7% +$108K
EXEL icon
236
Exelixis
EXEL
$12.7B
$17.9M 0.06%
982,498
-918,425
-48% -$21.4M
THS
237
DELISTED
Treehouse Foods
THS
$17.9M 0.06%
401,930
-20,152
-5% -$994K
QNST icon
238
QuinStreet
QNST
$1.18B
$17.5M 0.06%
941,822
+45,107
+5% +$855K
SCHW
239
Charles Schwab
SCHW
$188B
$17.4M 0.06%
238,534
-10,629
-4% -$752K
TECH icon
240
Bio-Techne
TECH
$11.2B
$17.3M 0.06%
153,468
-7,316
-5% -$770K
DT icon
241
Dynatrace
DT
$14.3B
$17.1M 0.06%
292,230
+54,657
+23% +$2.85M
DVY icon
242
iShares Select Dividend ETF
DVY
$23.7B
$17.1M 0.06%
146,364
+502
+0.3% +$59.7K
IRT icon
243
Independence Realty Trust
IRT
$3.92B
$16.7M 0.06%
917,529
-7,027
-0.8% -$119K
ORCL icon
244
Oracle
ORCL
$434B
$16.7M 0.06%
214,577
-1,110
-0.5% -$86.9K
C icon
245
Citigroup
C
$231B
$16.7M 0.06%
235,633
-6,558
-3% -$485K
TWTR
246
DELISTED
Twitter, Inc.
TWTR
$16.6M 0.06%
241,453
-1,502
-0.6% -$92.1K
LPSN icon
247
LivePerson
LPSN
$34.7M
$16.4M 0.06%
17,298
-632
-4% -$533K
VTI icon
248
Vanguard Morningstar Total Stock Market ETF
VTI
$691B
$16.3M 0.06%
73,040
-6,662
-8% -$1.45M
FTNT icon
249
Fortinet
FTNT
$120B
$16M 0.06%
335,910
-29,800
-8% -$1.27M
PLMR icon
250
Palomar
PLMR
$3.41B
$15.8M 0.05%
209,210
-7,821
-4% -$564K
8 9
10
11 12

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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.