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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

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
EAGG icon
1251
iShares ESG Aware US Aggregate Bond ETF
EAGG
$4.99B
$377K ﹤0.01%
6,813
-523
-7% -$28.7K
FTDR icon
1252
Frontdoor
FTDR
$5.83B
$377K ﹤0.01%
7,572
-1,272
-14% -$67.1K
VSS icon
1253
Vanguard FTSE All-World ex-US Small-Cap Index Fund
VSS
$12B
$377K ﹤0.01%
2,760
-165
-6% -$22.3K
SLAB icon
1254
Silicon Laboratories
SLAB
$7.28B
$376K ﹤0.01%
2,455
-35
-1% -$4.89K
AEF
1255
abrdn Emerging Markets Equity Income Fund
AEF
$385M
$374K ﹤0.01%
41,314
-159
-0.4% -$1.4K
ALLE icon
1256
Allegion
ALLE
$14.2B
$374K ﹤0.01%
2,684
+181
+7% +$24.7K
RNR icon
1257
RenaissanceRe
RNR
$13.3B
$374K ﹤0.01%
2,513
AWI icon
1258
Armstrong World Industries
AWI
$7.68B
$373K ﹤0.01%
3,482
-179
-5% -$18.4K
LAMR icon
1259
Lamar Advertising Co
LAMR
$15.8B
$373K ﹤0.01%
3,575
+8
+0.2% +$814
MYGN icon
1260
Myriad Genetics
MYGN
$303M
$371K ﹤0.01%
12,119
GIGB icon
1261
Goldman Sachs Access Investment Grade Corporate Bond ETF
GIGB
$974M
$368K ﹤0.01%
6,719
NEPH icon
1262
Nephros
NEPH
$50.9M
$368K ﹤0.01%
36,249
PVH icon
1263
PVH
PVH
$3.77B
$368K ﹤0.01%
3,419
+150
+5% +$16.5K
JEF icon
1264
Jefferies Financial Group
JEF
$12.9B
$364K ﹤0.01%
11,144
-842
-7% -$25.7K
SYRE icon
1265
Spyre Therapeutics
SYRE
$8.98B
$363K ﹤0.01%
2,088
UGI icon
1266
UGI
UGI
$7.56B
$362K ﹤0.01%
7,816
MLR icon
1267
Miller Industries
MLR
$640M
$361K ﹤0.01%
9,151
+101
+1% +$4.31K
VIOO icon
1268
Vanguard S&P Small-Cap 600 ETF
VIOO
$4.35B
$360K ﹤0.01%
3,472
-1,494
-30% -$153K
HAIN icon
1269
Hain Celestial
HAIN
$53.9M
$357K ﹤0.01%
8,900
-324
-4% -$13.4K
HSBC icon
1270
HSBC
HSBC
$358B
$357K ﹤0.01%
12,367
-3,600
-23% -$110K
IBRX icon
1271
ImmunityBio
IBRX
$8.11B
$357K ﹤0.01%
25,000
+8,000
+47% +$132K
FWONK icon
1272
Liberty Media Series C
FWONK
$26B
$356K ﹤0.01%
7,646
-1,550
-17% -$68.1K
TRI icon
1273
Thomson Reuters
TRI
$46B
$356K ﹤0.01%
3,398
+3
+0.1% +$301
EWU icon
1274
iShares MSCI United Kingdom ETF
EWU
$4.13B
$355K ﹤0.01%
10,859
+3,767
+53% +$125K
LBTYK icon
1275
Liberty Global Class C
LBTYK
$3.48B
$355K ﹤0.01%
13,142
-3,916
-23% -$106K

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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.