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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
LBTYA icon
1651
Liberty Global Class A
LBTYA
$3.55B
$23.8K ﹤0.01%
1,393
+307
+28% +$5.54K
BELFA icon
1652
Bel Fuse Inc Class A
BELFA
$3.43B
$23.2K ﹤0.01%
500
– –
MODD icon
1653
Modular Medical
MODD
$11.2M
$23.2K ﹤0.01%
667
– –
CSD icon
1654
Invesco S&P Spin-Off ETF
CSD
$232M
$23K ﹤0.01%
410
– –
PBE icon
1655
Invesco Biotechnology & Genome ETF
PBE
$358M
$22.8K ﹤0.01%
400
– –
NKTR icon
1656
Nektar Therapeutics
NKTR
$2.57B
$22.7K ﹤0.01%
2,536
-60
-2% -$578
KBWY icon
1657
Invesco KBW Premium Yield Equity REIT ETF
KBWY
$307M
$22.3K ﹤0.01%
1,276
– –
AGZ icon
1658
iShares Agency Bond ETF
AGZ
$564M
$22.2K ﹤0.01%
210
+30
+17% +$3.19K
PXF icon
1659
Invesco FTSE RAFI Developed Markets ex-US ETF
PXF
$2.97B
$22.2K ﹤0.01%
510
– –
XOP icon
1660
State Street SPDR S&P Oil & Gas Exploration & Production ETF
XOP
$3.68B
$22.1K ﹤0.01%
150
+62
+70% +$8.88K
JMUB icon
1661
JPMorgan Municipal ETF
JMUB
$8.51B
$20K ﹤0.01%
413
– –
IPAC icon
1662
iShares Core MSCI Pacific ETF
IPAC
$2.78B
$19.1K ﹤0.01%
344
+268
+353% +$15.3K
AAXJ icon
1663
iShares MSCI All Country Asia ex Japan ETF
AAXJ
$3.83B
$18.8K ﹤0.01%
296
– –
CLOV icon
1664
Clover Health Investments
CLOV
$2.41B
$18.7K ﹤0.01%
17,350
-11,821
-41% -$14.1K
MDYG icon
1665
State Street SPDR S&P 400 Mid Cap Growth ETF
MDYG
$2.96B
$18.7K ﹤0.01%
271
– –
PZA icon
1666
Invesco National AMT-Free Municipal Bond ETF
PZA
$4.27B
$18.2K ﹤0.01%
+820
New +$19K
AMWL icon
1667
American Well
AMWL
$215M
$18K ﹤0.01%
770
– –
MORT icon
1668
VanEck Mortgage REIT Income ETF
MORT
$373M
$17.1K ﹤0.01%
1,500
-6,000
-80% -$70.9K
VCLT icon
1669
Vanguard Long-Term Corporate Bond ETF
VCLT
$8.75B
$16.8K ﹤0.01%
234
– –
LSXMA
1670
DELISTED
Liberty Media Corporation Series A Liberty SiriusXM Common Stock
LSXMA
$16K ﹤0.01%
627
-226
-26% -$5.35K
SLYG icon
1671
State Street SPDR S&P 600 Small Cap Growth ETF
SLYG
$5.22B
$15.8K ﹤0.01%
216
– –
VIOG icon
1672
Vanguard S&P Small-Cap 600 Growth ETF
VIOG
$1.13B
$15.8K ﹤0.01%
167
+165
+8,250% +$16.4K
GLDG
1673
GoldMining Inc
GLDG
$223M
$15.7K ﹤0.01%
20,000
– –
SPEU icon
1674
State Street SPDR Portfolio Europe ETF
SPEU
$742M
$15.7K ﹤0.01%
435
– –
SENS icon
1675
Senseonics Holdings Inc
SENS
$419M
$15.3K ﹤0.01%
1,265
+125
+11% +$1.73K
65 66
67
68 69

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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.