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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
XNTK icon
1301
State Street SPDR NYSE Technology ETF
XNTK
$2.27B
$251K ﹤0.01%
1,837
– –
ZS icon
1302
Zscaler
ZS
$30.4B
$251K ﹤0.01%
+1,611
New +$242K
RMBS icon
1303
Rambus
RMBS
$10.8B
$249K ﹤0.01%
4,464
+150
+3% +$8.51K
CWH icon
1304
Camping World
CWH
$675M
$248K ﹤0.01%
12,171
+21
+0.2% +$553
XBAP icon
1305
Innovator US Equity Accelerated 9 Buffer ETF April
XBAP
$133M
$248K ﹤0.01%
8,582
– –
VOX icon
1306
Vanguard Communication Services ETF
VOX
$5.88B
$248K ﹤0.01%
2,357
-290
-11% -$31.4K
EME icon
1307
Emcor
EME
$36.7B
$248K ﹤0.01%
+1,178
New +$246K
AWR icon
1308
American States Water
AWR
$3.52B
$247K ﹤0.01%
3,145
– –
PVH icon
1309
PVH
PVH
$3.77B
$246K ﹤0.01%
3,219
-333
-9% -$27.5K
RWT
1310
Redwood Trust
RWT
$599M
$246K ﹤0.01%
34,510
+28
+0.1% +$206
CCEP icon
1311
Coca-Cola Europacific Partners
CCEP
$47.5B
$245K ﹤0.01%
+3,918
New +$249K
BFC icon
1312
Bank First Corp
BFC
$1.76B
$244K ﹤0.01%
3,169
– –
SWIM icon
1313
Latham Group
SWIM
$889M
$244K ﹤0.01%
87,053
+10,017
+13% +$36.3K
VTRS icon
1314
Viatris
VTRS
$18.4B
$244K ﹤0.01%
24,702
-1,493
-6% -$15.5K
IEO icon
1315
iShares US Oil & Gas Exploration & Production ETF
IEO
$589M
$243K ﹤0.01%
2,495
-93
-4% -$8.83K
DIV icon
1316
Global X SuperDividend US ETF
DIV
$780M
$243K ﹤0.01%
15,000
– –
THO icon
1317
Thor Industries
THO
$4.11B
$243K ﹤0.01%
+2,551
New +$266K
STM icon
1318
STMicroelectronics
STM
$48.1B
$243K ﹤0.01%
5,622
-3,455
-38% -$165K
BMRC icon
1319
Bank of Marin Bancorp
BMRC
$462M
$242K ﹤0.01%
13,230
– –
CMA
1320
DELISTED
Comerica
CMA
$241K ﹤0.01%
5,795
+88
+2% +$4.17K
SQSP
1321
DELISTED
Squarespace, Inc.
SQSP
$240K ﹤0.01%
8,300
-494
-6% -$15.2K
EXE
1322
Expand Energy Corp
EXE
$21.9B
$239K ﹤0.01%
2,770
– –
UBS icon
1323
UBS Group
UBS
$176B
$239K ﹤0.01%
+9,682
New +$226K
FDUS icon
1324
Fidus Investment
FDUS
$751M
$238K ﹤0.01%
12,421
– –
AAL icon
1325
American Airlines Group
AAL
$9.97B
$238K ﹤0.01%
18,606
-508
-3% -$7.88K
51 52
53
54 55

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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.