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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
EQR icon
701
Equity Residential
EQR
$24.7B
$1.68M 0.01%
25,455
+1,128
+5% +$70.5K
VNQI icon
702
Vanguard Global ex-US Real Estate ETF
VNQI
$3.52B
$1.68M 0.01%
41,737
-4,104
-9% -$168K
AWK icon
703
American Water Works
AWK
$27.1B
$1.67M 0.01%
11,710
-783
-6% -$115K
DBEF icon
704
Xtrackers MSCI EAFE Hedged Equity ETF
DBEF
$9.46B
$1.67M 0.01%
47,253
+2
+0% +$72
RSI icon
705
Rush Street Interactive
RSI
$2.85B
$1.67M 0.01%
533,712
– –
MP icon
706
MP Materials
MP
$9.91B
$1.66M 0.01%
72,724
+65,004
+842% +$1.49M
FTA icon
707
First Trust Large Cap Value AlphaDEX Fund
FTA
$1.44B
$1.65M 0.01%
24,788
+705
+3% +$45.8K
EWJ icon
708
iShares MSCI Japan ETF
EWJ
$23.2B
$1.64M 0.01%
26,514
+4,443
+20% +$268K
SSU
709
DELISTED
SIGNA Sports United N.V.
SSU
$1.61M 0.01%
569,358
-2,750
-0.5% -$8.82K
PFF icon
710
iShares Preferred and Income Securities ETF
PFF
$13.3B
$1.61M 0.01%
51,957
+2,899
+6% +$88.7K
SBDS
711
DELISTED
Solo Brands Inc
SBDS
$1.6M 0.01%
7,077
+45
+0.6% +$11.2K
CLX icon
712
Clorox
CLX
$12.9B
$1.6M 0.01%
10,039
-1,726
-15% -$278K
VCYT icon
713
Veracyte
VCYT
$3.42B
$1.59M 0.01%
62,332
-1,437
-2% -$34.8K
SWK icon
714
Stanley Black & Decker
SWK
$15.4B
$1.59M 0.01%
16,932
-260
-2% -$21.5K
LIT icon
715
Global X Lithium & Battery Tech ETF
LIT
$1.6B
$1.58M 0.01%
24,300
+631
+3% +$39.3K
IVOG icon
716
Vanguard S&P Mid-Cap 400 Growth ETF
IVOG
$1.73B
$1.58M 0.01%
16,858
– –
CPB icon
717
Campbell Soup
CPB
$6.94B
$1.57M 0.01%
34,438
+271
+0.8% +$14K
BIP icon
718
Brookfield Infrastructure Partners
BIP
$18.4B
$1.57M 0.01%
43,015
-78
-0.2% -$2.78K
SMPL icon
719
Simply Good Foods
SMPL
$989M
$1.57M 0.01%
42,873
+5,092
+13% +$187K
QUAL icon
720
iShares MSCI USA Quality Factor ETF
QUAL
$48.4B
$1.56M 0.01%
11,598
+668
+6% +$85K
GTLB icon
721
GitLab
GTLB
$7.32B
$1.56M 0.01%
30,604
-2,875
-9% -$107K
SPLV icon
722
Invesco S&P 500 Low Volatility ETF
SPLV
$7.22B
$1.55M 0.01%
24,670
+189
+0.8% +$11.8K
XLB icon
723
State Street Materials Select Sector SPDR ETF
XLB
$8.57B
$1.55M 0.01%
37,334
-37,210
-50% -$1.48M
VTIP icon
724
Vanguard Short-Term Inflation-Protected Securities Index Fund
VTIP
$19.8B
$1.54M 0.01%
32,491
-8,018
-20% -$382K
TLT icon
725
iShares 20+ Year Treasury Bond ETF
TLT
$40.8B
$1.53M 0.01%
14,878
+2,274
+18% +$236K
27 28
29
30 31

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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.