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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
LMT icon
201
Lockheed Martin
LMT
$138B
$20.4M 0.07%
44,407
+3,026
+7% +$1.4M
GNRC icon
202
Generac Holdings
GNRC
$12.8B
$20.3M 0.07%
136,328
+15,797
+13% +$1.8M
YETI icon
203
Yeti Holdings
YETI
$3.4B
$20.3M 0.07%
523,349
-50,592
-9% -$1.96M
IRM icon
204
Iron Mountain
IRM
$37.7B
$20M 0.07%
352,651
-5,820
-2% -$319K
IJH icon
205
iShares Core S&P Mid-Cap ETF
IJH
$128B
$19.9M 0.07%
379,825
+5,765
+2% +$287K
EL icon
206
Estee Lauder
EL
$31.7B
$19.4M 0.07%
98,987
-4,853
-5% -$1.03M
EHC icon
207
Encompass Health
EHC
$12.2B
$18.9M 0.07%
279,496
-10,199
-4% -$639K
MU icon
208
Micron Technology
MU
$1.08T
$18.9M 0.07%
299,678
+13,459
+5% +$865K
VO icon
209
Vanguard Morningstar Mid-Cap ETF
VO
$111B
$18.7M 0.07%
339,976
+23,972
+8% +$1.26M
TGT icon
210
Target
TGT
$70.7B
$18.7M 0.07%
141,468
-38,312
-21% -$5.69M
VOE icon
211
Vanguard Morningstar Mid-Cap Value ETF
VOE
$24.5B
$18.6M 0.07%
134,492
-12,204
-8% -$1.63M
MDLZ icon
212
Mondelez International
MDLZ
$80.8B
$18.5M 0.07%
253,662
+8,445
+3% +$624K
GE icon
213
GE Aerospace
GE
$375B
$18.4M 0.07%
209,389
-5,229
-2% -$423K
ESGD icon
214
iShares ESG Aware MSCI EAFE ETF
ESGD
$12.3B
$18.2M 0.07%
249,874
-27,448
-10% -$2M
AJG icon
215
Arthur J. Gallagher & Co
AJG
$65B
$18.2M 0.07%
82,887
+1,369
+2% +$285K
IJR icon
216
iShares Core S&P Small-Cap ETF
IJR
$113B
$18.1M 0.07%
182,030
-6,232
-3% -$593K
PRVA icon
217
Privia Health
PRVA
$2.77B
$18M 0.07%
688,314
-107,006
-13% -$2.83M
VZ icon
218
Verizon
VZ
$200B
$18M 0.07%
482,916
-29,828
-6% -$1.1M
VMC icon
219
Vulcan Materials
VMC
$36.1B
$17.9M 0.07%
79,210
+638
+0.8% +$122K
DOW icon
220
Dow Inc
DOW
$21.9B
$17.7M 0.06%
332,452
-21,413
-6% -$1.14M
CDW icon
221
CDW
CDW
$17.5B
$17.5M 0.06%
95,202
+2,442
+3% +$427K
SPMD icon
222
State Street SPDR Portfolio S&P 400 Mid Cap ETF
SPMD
$19.1B
$17.4M 0.06%
379,333
+225,821
+147% +$9.87M
TWLO icon
223
Twilio
TWLO
$38.9B
$17.3M 0.06%
271,537
-9,580
-3% -$565K
TROW icon
224
T. Rowe Price
TROW
$23.8B
$17.2M 0.06%
153,369
-1,992
-1% -$218K
EOG icon
225
EOG Resources
EOG
$74.4B
$17.1M 0.06%
149,841
+16,202
+12% +$1.85M
7 8
9
10 11

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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.