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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
PING
426
DELISTED
Ping Identity Holding Corp.
PING
$5.89M 0.02%
257,427
+28,790
+13% +$678K
CELL
427
DELISTED
PhenomeX Inc. Common Stock
CELL
$5.86M 0.02%
130,654
+81,593
+166% +$3.78M
WY icon
428
Weyerhaeuser
WY
$17.9B
$5.83M 0.02%
169,291
-52,093
-24% -$1.93M
MDLA
429
DELISTED
Medallia, Inc.
MDLA
$5.79M 0.02%
171,645
+30,468
+22% +$876K
VBK icon
430
Vanguard Morningstar Small-Cap Growth ETF
VBK
$24.9B
$5.67M 0.02%
19,578
-12,921
-40% -$3.61M
CDW icon
431
CDW
CDW
$17.8B
$5.64M 0.02%
32,310
-671
-2% -$116K
RHI icon
432
Robert Half
RHI
$4.48B
$5.64M 0.02%
63,408
+1,083
+2% +$94.4K
SHY icon
433
iShares 1-3 Year Treasury Bond ETF
SHY
$25.5B
$5.64M 0.02%
65,444
-25,438
-28% -$2.19M
CRL icon
434
Charles River Laboratories
CRL
$13.4B
$5.59M 0.02%
15,120
-165
-1% -$55.1K
SIMS icon
435
State Street SPDR S&P Kensho Intelligent Structures ETF
SIMS
$8.69M
$5.52M 0.02%
115,390
+69,856
+153% +$3.27M
SCHP icon
436
Schwab US TIPS ETF
SCHP
$16.2B
$5.51M 0.02%
176,248
-269,146
-60% -$8.34M
SMH icon
437
VanEck Semiconductor ETF
SMH
$72.5B
$5.46M 0.02%
41,658
-8,326
-17% -$1.03M
HEFA icon
438
iShares Currency Hedged MSCI EAFE ETF
HEFA
$7.81B
$5.45M 0.02%
157,298
-143
-0.1% -$4.86K
IP icon
439
International Paper
IP
$21.8B
$5.44M 0.02%
93,715
-2,432
-3% -$139K
SO icon
440
Southern Company
SO
$107B
$5.43M 0.02%
89,771
+108
+0.1% +$6.91K
FSLY icon
441
Fastly Inc
FSLY
$4.78B
$5.43M 0.02%
91,047
-1,756
-2% -$99.8K
CHKP icon
442
Check Point Software Technologies
CHKP
$13.7B
$5.42M 0.02%
46,659
-260,541
-85% -$30.7M
KLAC icon
443
KLA
KLAC
$274B
$5.41M 0.02%
166,750
+4,100
+3% +$131K
FNF icon
444
Fidelity National Financial
FNF
$13.1B
$5.38M 0.02%
128,838
-5,949
-4% -$260K
ODFL icon
445
Old Dominion Freight Line
ODFL
$44.7B
$5.34M 0.02%
42,118
-1,584
-4% -$203K
NET icon
446
Cloudflare
NET
$118B
$5.3M 0.02%
50,034
+4,901
+11% +$406K
CACC icon
447
Credit Acceptance
CACC
$6.05B
$5.26M 0.02%
11,586
– –
AOS icon
448
A.O. Smith
AOS
$8.49B
$5.21M 0.02%
72,258
+6,449
+10% +$445K
VBR icon
449
Vanguard Morningstar Small-Cap Value ETF
VBR
$38.2B
$5.18M 0.02%
29,825
+2,835
+11% +$491K
MRCC
450
DELISTED
Monroe Capital Corp
MRCC
$5.16M 0.02%
481,081
-66,066
-12% -$715K
16 17
18
19 20

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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.