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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
+606.62%
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 Miscellaneous 10.21%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
SCHX icon
951
Schwab US Large- Cap ETF
SCHX
$73.3B
$706K ﹤0.01%
40,452
+6,288
+18% +$104K
MTTR
952
DELISTED
Matterport, Inc. Class A Common Stock
MTTR
$697K ﹤0.01%
221,138
– –
NATI
953
DELISTED
National Instruments Corp
NATI
$694K ﹤0.01%
12,090
-10,596
-47% -$607K
SHV icon
954
iShares 0-1 Year Treasury Bond ETF
SHV
$21.1B
$694K ﹤0.01%
6,282
+4,870
+345% +$537K
AUGX
955
DELISTED
Augmedix, Inc. Common Stock
AUGX
$694K ﹤0.01%
144,197
-30,400
-17% -$105K
VSEC icon
956
VSE Corp
VSEC
$5B
$691K ﹤0.01%
12,632
+1,354
+12% +$65.5K
BRZE icon
957
Braze
BRZE
$2.89B
$687K ﹤0.01%
15,682
-159
-1% -$5.4K
USD icon
958
ProShares Ultra Semiconductors
USD
$2.45B
$685K ﹤0.01%
64,900
-9,900
-13% -$79.3K
LEN.B icon
959
Lennar Class B
LEN.B
$18.9B
$680K ﹤0.01%
6,331
+20
+0.3% +$1.88K
DG icon
960
Dollar General
DG
$27.5B
$680K ﹤0.01%
4,002
+3
+0.1% +$593
ATEC icon
961
Alphatec Holdings
ATEC
$1.65B
$676K ﹤0.01%
37,575
– –
CWST icon
962
Casella Waste Systems
CWST
$5.75B
$675K ﹤0.01%
7,467
-53
-0.7% -$4.73K
WDC icon
963
Western Digital
WDC
$149B
$675K ﹤0.01%
23,543
-2,298
-9% -$63.9K
DRS icon
964
Leonardo DRS
DRS
$9.84B
$674K ﹤0.01%
38,850
+900
+2% +$13.9K
ORI icon
965
Old Republic International
ORI
$9.91B
$673K ﹤0.01%
26,731
-785
-3% -$19.7K
IONS icon
966
Ionis Pharmaceuticals
IONS
$7.85B
$672K ﹤0.01%
16,384
+1,740
+12% +$66.9K
DKNG icon
967
DraftKings
DKNG
$12.2B
$670K ﹤0.01%
25,234
-2,295
-8% -$52.9K
ARGX icon
968
argenx
ARGX
$61.3B
$670K ﹤0.01%
1,720
+675
+65% +$265K
CTRA
969
DELISTED
Coterra Energy
CTRA
$668K ﹤0.01%
26,403
+7,433
+39% +$185K
NI icon
970
NiSource
NI
$19.5B
$668K ﹤0.01%
24,406
+200
+0.8% +$5.55K
PMAR icon
971
Innovator US Equity Power Buffer ETF March
PMAR
$742M
$667K ﹤0.01%
19,761
+785
+4% +$25.7K
TTD icon
972
Trade Desk
TTD
$7.05B
$667K ﹤0.01%
8,633
+812
+10% +$54.9K
GCMG icon
973
GCM Grosvenor
GCMG
$780M
$660K ﹤0.01%
87,595
+8,209
+10% +$61.2K
PLUS icon
974
ePlus
PLUS
$2.41B
$655K ﹤0.01%
11,642
+353
+3% +$17.4K
NACP icon
975
Impact Shares NAACP Minority Empowerment ETF
NACP
$74.5M
$650K ﹤0.01%
20,540
-956
-4% -$28.5K
37 38
39
40 41

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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.