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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
XTN icon
1651
State Street SPDR S&P Transportation ETF
XTN
$392M
$28.4K ﹤0.01%
339
GBF icon
1652
iShares Government/Credit Bond ETF
GBF
$128M
$28.1K ﹤0.01%
270
RNAC icon
1653
Cartesian Therapeutics
RNAC
$263M
$28K ﹤0.01%
834
MCHI icon
1654
iShares MSCI China ETF
MCHI
$6.21B
$27.6K ﹤0.01%
618
+260
+73% +$12.2K
ISCG icon
1655
iShares Morningstar Small-Cap Growth ETF
ISCG
$1.02B
$27.3K ﹤0.01%
660
HOMZ icon
1656
Hoya Capital Housing ETF
HOMZ
$35.9M
$27.1K ﹤0.01%
+700
New +$24.9K
EEMS icon
1657
iShares MSCI Emerging Markets Small-Cap ETF
EEMS
$379M
$26.8K ﹤0.01%
500
CLOV icon
1658
Clover Health Investments
CLOV
$2.41B
$26.2K ﹤0.01%
29,171
-28,579
-49% -$25.4K
IXP icon
1659
iShares Global Comm Services ETF
IXP
$561M
$26K ﹤0.01%
380
DXGE
1660
DELISTED
WisdomTree Germany Hedged Equity Fund
DXGE
$25.4K ﹤0.01%
700
AOA icon
1661
iShares Core 80/20 Aggressive Allocation ETF
AOA
$3.28B
$25.1K ﹤0.01%
379
+1
+0.3% +$64
PBE icon
1662
Invesco Biotechnology & Genome ETF
PBE
$358M
$24.5K ﹤0.01%
400
SCWO icon
1663
374Water
SCWO
$41.1M
$23.9K ﹤0.01%
1,000
CSD icon
1664
Invesco S&P Spin-Off ETF
CSD
$232M
$23.3K ﹤0.01%
410
GENZ
1665
VanEck Digital Native Economy ETF
GENZ
$17.5M
$23.3K ﹤0.01%
520
PXF icon
1666
Invesco FTSE RAFI Developed Markets ex-US ETF
PXF
$2.97B
$22.9K ﹤0.01%
510
-62
-11% -$2.78K
KBWY icon
1667
Invesco KBW Premium Yield Equity REIT ETF
KBWY
$307M
$22.9K ﹤0.01%
1,276
XJR icon
1668
iShares ESG Screened S&P Small-Cap ETF
XJR
$190M
$22.8K ﹤0.01%
652
NKTR icon
1669
Nektar Therapeutics
NKTR
$2.57B
$22.4K ﹤0.01%
2,596
BBUS icon
1670
JPMorgan BetaBuilders US Equity ETF
BBUS
$9.22B
$22.1K ﹤0.01%
+277
New +$20.9K
FNCL icon
1671
Fidelity MSCI Financials Index ETF
FNCL
$2.42B
$21.2K ﹤0.01%
450
-170
-27% -$7.72K
HYS icon
1672
PIMCO 0-5 Year High Yield Corporate Bond Index Exchange-Traded Fund
HYS
$1.77B
$21K ﹤0.01%
230
-803
-78% -$72.6K
JMUB icon
1673
JPMorgan Municipal ETF
JMUB
$8.51B
$20.7K ﹤0.01%
413
TBT icon
1674
ProShares Trust UltraShort Lehman 20+ Year Treasury
TBT
$309M
$20.6K ﹤0.01%
700
-1
-0.1% -$29
LSXMA
1675
DELISTED
Liberty Media Corporation Series A Liberty SiriusXM Common Stock
LSXMA
$20.6K ﹤0.01%
853
+675
+379% +$14.4K

Similar funds

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.