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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
MOO icon
1826
VanEck Agribusiness ETF
MOO
$973M
– –
-7
Closed -$608
NLY icon
1827
Annaly Capital Management
NLY
$17.5B
– –
-12,961
Closed -$248K
NWL icon
1828
Newell Brands
NWL
$2.62B
– –
-12,165
Closed -$151K
NYT icon
1829
New York Times
NYT
$10.3B
– –
-9,582
Closed -$373K
OUST icon
1830
Ouster
OUST
$3.3B
– –
-4,330
Closed -$36.2K
PAR icon
1831
PAR Technology
PAR
$750M
– –
-13,021
Closed -$442K
PAUG icon
1832
Innovator US Equity Power Buffer ETF August
PAUG
$936M
– –
-400
Closed -$11.8K
PD icon
1833
PagerDuty
PD
$885M
– –
-21,055
Closed -$737K
PFM icon
1834
Invesco Dividend Achievers ETF
PFM
$812M
– –
-165
Closed -$6.04K
PLAY icon
1835
Dave & Buster's
PLAY
$356M
– –
-17,695
Closed -$651K
PLUG icon
1836
Plug Power
PLUG
$3.2B
– –
-109,319
Closed -$1.28M
PSCE icon
1837
Invesco S&P SmallCap Energy ETF
PSCE
$104M
– –
-23,008
Closed -$1.07M
PSP icon
1838
Invesco Global Listed Private Equity ETF
PSP
$248M
– –
-25
Closed -$1.26K
SOXL icon
1839
Direxion Daily Semiconductor Bull 3X ETF
SOXL
$24.8B
– –
-396
Closed -$7.25K
SPH icon
1840
Suburban Propane Partners
SPH
$1.18B
– –
-25,850
Closed -$396K
SPXL icon
1841
Direxion Daily S&P 500 Bull 3x ETF
SPXL
$7.29B
– –
-508
Closed -$37.2K
STAA icon
1842
STAAR Surgical
STAA
$1.28B
– –
-3,711
Closed -$237K
SYF icon
1843
Synchrony
SYF
$25.8B
– –
-7,993
Closed -$232K
SYRE icon
1844
Spyre Therapeutics
SYRE
$9.16B
– –
-2,412
Closed -$17.5K
TALK icon
1845
Talkspace
TALK
$871M
– –
-13,786
Closed -$9.58K
TRS icon
1846
TriMas Corp
TRS
$1.42B
– –
-9,893
Closed -$276K
TS icon
1847
Tenaris
TS
$26.8B
– –
-7,460
Closed -$212K
TZA icon
1848
Direxion Daily Small Cap Bear 3x ETF
TZA
$200M
– –
-10
Closed -$3.11K
UGI icon
1849
UGI
UGI
$7.49B
– –
-6,746
Closed -$234K
UI icon
1850
Ubiquiti
UI
$35.3B
– –
-755
Closed -$205K
72 73
74
75 76

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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.