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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
+9.7%
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
$27.3B
AUM Growth
+$2.26B
Cap. Flow
+$202M
Cap. Flow %
0.74%
Top 10 Hldgs %
24.36%
Holding
1,897
New
97
Increased
682
Reduced
737
Closed
88

Top Buys

Rank Stock Value
1
COST icon
Costco
COST
+$28.3M
2
ALL icon
Allstate
ALL
+$25.8M
3
ISRG icon
Intuitive Surgical
ISRG
+$19.6M
4
NEOG icon
Neogen
NEOG
+$17.4M
5
DV icon
DoubleVerify
DV
+$17.3M

Top Sells

Rank Stock Value
1
NBIX icon
Neurocrine Biosciences
NBIX
+$29.1M
2
PLNT icon
Planet Fitness
PLNT
+$20.4M
3
ABNB icon
Airbnb
ABNB
+$17.1M
4
IBM icon
IBM
IBM
+$14.8M
5
XMTR icon
Xometry
XMTR
+$10.8M

Sector Composition

Rank Sector Weight
1 Technology 25.59%
2 Healthcare 18.44%
3 Industrials 11.64%
4 Financials 11.51%
5 Consumer Discretionary 8.51%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
AVTR icon
1051
Avantor
AVTR
$9.37B
$495K ﹤0.01%
+24,109
New +$487K
GOVT icon
1052
iShares US Treasury Bond ETF
GOVT
$43.8B
$494K ﹤0.01%
21,555
+137
+0.6% +$3.18K
WRK
1053
DELISTED
WestRock Company
WRK
$490K ﹤0.01%
16,870
-6,403
-28% -$186K
MRTN icon
1054
Marten Transport
MRTN
$1.24B
$490K ﹤0.01%
22,800
– –
EVTC icon
1055
Evertec
EVTC
$1.91B
$490K ﹤0.01%
13,305
+1,254
+10% +$43.5K
AYX
1056
DELISTED
Alteryx Inc
AYX
$489K ﹤0.01%
10,781
-1,162
-10% -$50.9K
EPI icon
1057
WisdomTree India Earnings Fund ETF
EPI
$2.04B
$487K ﹤0.01%
13,997
+150
+1% +$4.97K
RIO icon
1058
Rio Tinto
RIO
$160B
$485K ﹤0.01%
7,598
-891
-10% -$57.3K
VNT icon
1059
Vontier
VNT
$4.47B
$484K ﹤0.01%
15,019
-1,370
-8% -$39.5K
KWEB icon
1060
KraneShares CSI China Internet ETF
KWEB
$5.31B
$482K ﹤0.01%
+17,881
New +$497K
PTLC icon
1061
Pacer Trendpilot US Large Cap ETF
PTLC
$3.39B
$480K ﹤0.01%
11,614
+243
+2% +$9.48K
DECK icon
1062
Deckers Outdoor
DECK
$12.7B
$476K ﹤0.01%
5,418
+2,190
+68% +$176K
BBAX icon
1063
JPMorgan BetaBuilders Developed Asia Pacific-ex Japan ETF
BBAX
$6.78B
$475K ﹤0.01%
9,939
-247
-2% -$12.1K
TW icon
1064
Tradeweb Markets
TW
$22.3B
$474K ﹤0.01%
6,924
+3,915
+130% +$277K
PJUL icon
1065
Innovator US Equity Power Buffer ETF July
PJUL
$1.29B
$473K ﹤0.01%
+13,819
New +$447K
FWONK icon
1066
Liberty Media Series C
FWONK
$26B
$473K ﹤0.01%
6,494
-238
-4% -$16.9K
EGRX
1067
DELISTED
Eagle Pharmaceuticals, Inc.
EGRX
$472K ﹤0.01%
24,275
-2,350
-9% -$55.8K
BF.B icon
1068
Brown-Forman Class B
BF.B
$12.9B
$471K ﹤0.01%
7,059
-30
-0.4% -$1.92K
BRLT icon
1069
Brilliant Earth
BRLT
$23M
$471K ﹤0.01%
121,449
-6,449
-5% -$24.5K
PFEB icon
1070
Innovator US Equity Power Buffer ETF February
PFEB
$926M
$471K ﹤0.01%
15,283
– –
SCHP icon
1071
Schwab US TIPS ETF
SCHP
$16.2B
$466K ﹤0.01%
17,790
+1,732
+11% +$45.9K
NSSC icon
1072
Napco Security Technologies
NSSC
$1.37B
$465K ﹤0.01%
13,430
– –
EFAV icon
1073
iShares MSCI EAFE Min Vol Factor ETF
EFAV
$5.46B
$464K ﹤0.01%
6,881
+1,465
+27% +$101K
BKR icon
1074
Baker Hughes
BKR
$63B
$464K ﹤0.01%
14,670
+3,332
+29% +$97.1K
LAMR icon
1075
Lamar Advertising Co
LAMR
$15.8B
$464K ﹤0.01%
4,670
+19
+0.4% +$1.84K
41 42
43
44 45

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William Blair & Company's Q2 2023 Portfolio in Review

As of Q2 2023, William Blair & Company held 1,897 positions worth $27.3B, up 9% from $25B the previous quarter. Its ten largest holdings account for 24% of the portfolio.

William Blair & Company's Q2 2023 filing shows 97 new, 682 increased, 737 reduced and 88 closed positions. Its largest new stake was Innovator US Equity Power Buffer ETF April: 112,249 shares worth $3.47M. The largest sale was Neurocrine Biosciences, an estimated $29.1M.

By sector, the portfolio is most concentrated in Technology at 26% of assets, up from 25% a quarter earlier, followed by Healthcare and Industrials.

  • William Blair & Company's largest Q2 2023 buy was Innovator US Equity Power Buffer ETF April: 112,249 shares worth $3.47M.
  • William Blair & Company added most to Costco in Q2 2023, an estimated $28.3M increase.
  • William Blair & Company's biggest Q2 2023 reduction was Neurocrine Biosciences, cutting an estimated $29.1M.
  • William Blair & Company fully exited ABB Ltd in Q2 2023, selling an estimated $7.21M.
  • William Blair & Company's ten largest holdings make up 24% of its $27.3B portfolio in Q2 2023.
  • William Blair & Company opened 97 new positions and closed 88 in Q2 2023.
  • William Blair & Company's portfolio value rose 9% quarter-over-quarter to $27.3B.

Based on William Blair & Company's 13F filing for Q2 2023, filed 11 Aug 2023.