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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
SPTI icon
1626
State Street SPDR Portfolio Intermediate Term Treasury ETF
SPTI
$10.6B
$35.1K ﹤0.01%
1,240
+360
+41% +$10.4K
FDIS icon
1627
Fidelity MSCI Consumer Discretionary Index ETF
FDIS
$1.71B
$34.8K ﹤0.01%
475
– –
SEGG
1628
Sports Entertainment Gaming Global Corp
SEGG
$7.92M
$34.2K ﹤0.01%
124
– –
STPZ icon
1629
PIMCO 1-5 Year US TIPS Index Exchange-Traded Fund
STPZ
$524M
$32.4K ﹤0.01%
645
– –
AMWL icon
1630
American Well
AMWL
$215M
$32.3K ﹤0.01%
770
– –
IFGL icon
1631
iShares International Developed Real Estate ETF
IFGL
$82.2M
$31.8K ﹤0.01%
1,600
– –
OTLY
1632
Oatly Group
OTLY
$420M
$31.5K ﹤0.01%
768
– –
IGM icon
1633
iShares Expanded Tech Sector ETF
IGM
$10.8B
$31.4K ﹤0.01%
480
– –
AUTL
1634
Autolus Therapeutics
AUTL
$564M
$31.2K ﹤0.01%
13,107
– –
KXI icon
1635
iShares Global Consumer Staples ETF
KXI
$1.06B
$31.1K ﹤0.01%
508
+279
+122% +$17.4K
SPTL icon
1636
State Street SPDR Portfolio Long Term Treasury ETF
SPTL
$10.7B
$31K ﹤0.01%
1,038
+26
+3% +$785
GEF.B icon
1637
Greif Class B
GEF.B
$4.24B
$30.9K ﹤0.01%
400
– –
REM icon
1638
iShares Mortgage Real Estate ETF
REM
$543M
$30.7K ﹤0.01%
1,300
– –
FM
1639
DELISTED
iShares Frontier and Select EM ETF
FM
$30.6K ﹤0.01%
1,184
-239
-17% -$6.07K
KBWB icon
1640
Invesco KBW Bank ETF
KBWB
$6.85B
$30.5K ﹤0.01%
743
+452
+155% +$18.4K
FINX icon
1641
Global X FinTech ETF
FINX
$166M
$30K ﹤0.01%
+1,359
New +$28.4K
PBW icon
1642
Invesco WilderHill Clean Energy ETF
PBW
$458M
$29.9K ﹤0.01%
744
– –
IXG icon
1643
iShares Global Financials ETF
IXG
$698M
$29.5K ﹤0.01%
413
+2
+0.5% +$141
DFJ icon
1644
WisdomTree Japan SmallCap Dividend Fund
DFJ
$402M
$29.2K ﹤0.01%
438
– –
TQQQ icon
1645
ProShares UltraPro QQQ
TQQQ
$37.4B
$29K ﹤0.01%
1,416
+1,296
+1,080% +$20.8K
BELFA icon
1646
Bel Fuse Inc Class A
BELFA
$3.43B
$29K ﹤0.01%
500
– –
CORP icon
1647
PIMCO Investment Grade Corporate Bond Index Exchange-Traded Fund
CORP
$1.58B
$28.9K ﹤0.01%
305
-502
-62% -$47.8K
IHE icon
1648
iShares US Pharmaceuticals ETF
IHE
$1.65B
$28.8K ﹤0.01%
483
-12,312
-96% -$732K
NEAR icon
1649
iShares Short Maturity Bond ETF
NEAR
$4.88B
$28.5K ﹤0.01%
573
-148
-21% -$7.34K
FUBO icon
1650
FuboTV Inc
FUBO
$293M
$28.4K ﹤0.01%
1,139
– –
64 65
66
67 68

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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.