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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
-3.85%
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
$26.1B
AUM Growth
-$1.22B
Cap. Flow
+$114M
Cap. Flow %
0.44%
Top 10 Hldgs %
23.71%
Holding
1,877
New
67
Increased
674
Reduced
719
Closed
85

Top Buys

Rank Stock Value
1
KVUE icon
Kenvue
KVUE
+$32.2M
2
LZ icon
LegalZoom.com
LZ
+$26.6M
3
CRWD icon
CrowdStrike
CRWD
+$24M
4
CSGP icon
CoStar Group
CSGP
+$20.8M
5
GNRC icon
Generac Holdings
GNRC
+$18.3M

Top Sells

Rank Stock Value
1
AAPL icon
Apple
AAPL
+$37.6M
2
PODD icon
Insulet
PODD
+$37.3M
3
NVDA icon
NVIDIA
NVDA
+$24.8M
4
ATVI
Activision Blizzard
ATVI
+$20.6M
5
SBUX icon
Starbucks
SBUX
+$17.8M

Sector Composition

Rank Sector Weight
1 Technology 25.36%
2 Healthcare 17.61%
3 Financials 12.07%
4 Industrials 11.66%
5 Consumer Discretionary 8.39%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
HIG icon
1101
Hartford Financial Services
HIG
$37.8B
$419K ﹤0.01%
5,914
-192
-3% -$13.9K
BLD
1102
DELISTED
TopBuild
BLD
$419K ﹤0.01%
+1,665
New +$459K
SPIB icon
1103
State Street SPDR Portfolio Intermediate Term Corporate Bond ETF
SPIB
$11.6B
$416K ﹤0.01%
13,228
+2,050
+18% +$65.3K
FUL icon
1104
H.B. Fuller
FUL
$3.24B
$415K ﹤0.01%
6,052
– –
SMIG icon
1105
Bahl & Gaynor Small/Mid Cap Income Growth ETF
SMIG
$1.51B
$414K ﹤0.01%
18,174
– –
FXO icon
1106
First Trust Financials AlphaDEX Fund
FXO
$1.15B
$412K ﹤0.01%
10,895
– –
CNP icon
1107
CenterPoint Energy
CNP
$26.7B
$408K ﹤0.01%
15,203
+3,526
+30% +$102K
OBDC icon
1108
Blue Owl Capital
OBDC
$5.87B
$408K ﹤0.01%
29,462
+5,892
+25% +$81.3K
TDOC icon
1109
Teladoc Health
TDOC
$1.26B
$408K ﹤0.01%
21,945
-861
-4% -$20.1K
SCHP icon
1110
Schwab US TIPS ETF
SCHP
$16.2B
$405K ﹤0.01%
16,038
-1,752
-10% -$45.2K
DRVN icon
1111
Driven Brands
DRVN
$2.12B
$405K ﹤0.01%
32,142
+5,261
+20% +$96.2K
MPLX icon
1112
MPLX
MPLX
$59.6B
$403K ﹤0.01%
11,342
-155
-1% -$5.41K
PAAS icon
1113
Pan American Silver
PAAS
$19.9B
$403K ﹤0.01%
27,801
-7
-0% -$110
VIRT icon
1114
Virtu Financial
VIRT
$5.05B
$401K ﹤0.01%
23,239
– –
CRI icon
1115
Carter's
CRI
$1.44B
$400K ﹤0.01%
5,788
+1,801
+45% +$129K
BALL icon
1116
Ball Corp
BALL
$16.4B
$399K ﹤0.01%
8,008
+74
+0.9% +$4.04K
JNK icon
1117
State Street SPDR Bloomberg High Yield Bond ETF
JNK
$7.33B
$398K ﹤0.01%
4,401
+3,948
+872% +$362K
OLED icon
1118
Universal Display
OLED
$4.18B
$397K ﹤0.01%
2,530
– –
MRO
1119
DELISTED
Marathon Oil Corporation
MRO
$397K ﹤0.01%
14,841
+4
+0% +$103
WFC.PRL icon
1120
Wells Fargo 7.5% Non Cumv Perp Conv
WFC.PRL
$4.66B
$394K ﹤0.01%
353
-34
-9% -$39.3K
CM icon
1121
Canadian Imperial Bank of Commerce
CM
$112B
$394K ﹤0.01%
10,192
+1,198
+13% +$49.5K
SLAB icon
1122
Silicon Laboratories
SLAB
$7.28B
$393K ﹤0.01%
3,395
-18
-0.5% -$2.49K
RCL icon
1123
Royal Caribbean
RCL
$82.9B
$392K ﹤0.01%
4,260
-5,490
-56% -$550K
LAMR icon
1124
Lamar Advertising Co
LAMR
$15.8B
$391K ﹤0.01%
4,683
+13
+0.3% +$1.19K
IYJ icon
1125
iShares US Industrials ETF
IYJ
$1.96B
$390K ﹤0.01%
3,868
+146
+4% +$15.5K
43 44
45
46 47

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William Blair & Company's Q3 2023 Portfolio in Review

As of Q3 2023, William Blair & Company held 1,877 positions worth $26.1B, down 4.5% from $27.3B the previous quarter. Its ten largest holdings account for 24% of the portfolio.

William Blair & Company's Q3 2023 filing shows 67 new, 674 increased, 719 reduced and 85 closed positions. Its largest new stake was Kenvue: 1,391,743 shares worth $27.9M. The largest sale was Apple, an estimated $37.6M.

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

  • William Blair & Company's largest Q3 2023 buy was Kenvue: 1,391,743 shares worth $27.9M.
  • William Blair & Company added most to LegalZoom.com in Q3 2023, an estimated $26.6M increase.
  • William Blair & Company's biggest Q3 2023 reduction was Apple, cutting an estimated $37.6M.
  • William Blair & Company fully exited Activision Blizzard in Q3 2023, selling an estimated $20.6M.
  • William Blair & Company's ten largest holdings make up 24% of its $26.1B portfolio in Q3 2023.
  • William Blair & Company opened 67 new positions and closed 85 in Q3 2023.
  • William Blair & Company's portfolio value fell 4.5% quarter-over-quarter to $26.1B.

Based on William Blair & Company's 13F filing for Q3 2023, filed 9 Nov 2023.