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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
+1.74%
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
$32.4B
AUM Growth
+$583M
Cap. Flow
+$654M
Cap. Flow %
2.02%
Top 10 Hldgs %
24.5%
Holding
1,893
New
89
Increased
716
Reduced
748
Closed
71

Top Buys

Rank Stock Value
1
AAPL icon
Apple
AAPL
+$57.9M
2
UBER icon
Uber
UBER
+$55.4M
3
MSFT icon
Microsoft
MSFT
+$52.4M
4
XOM icon
ExxonMobil
XOM
+$44.2M
5
AAON icon
Aaon
AAON
+$42M

Top Sells

Rank Stock Value
1
PWSC
PowerSchool Holdings, Inc.
PWSC
+$70.4M
2
WDAY icon
Workday
WDAY
+$67.8M
3
PXD
Pioneer Natural Resource Co.
PXD
+$40M
4
DXCM icon
DexCom
DXCM
+$29.5M
5
SBUX icon
Starbucks
SBUX
+$29.4M

Sector Composition

Rank Sector Weight
1 Technology 27.24%
2 Healthcare 15.67%
3 Financials 12.01%
4 Industrials 11.46%
5 Consumer Discretionary 8.16%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
BAC icon
126
Bank of America
BAC
$451B
$51M 0.16%
1,283,236
+124,739
+11% +$4.78M
EVH icon
127
Evolent Health
EVH
$492M
$49.4M 0.15%
2,582,077
-687,142
-21% -$17.5M
RMD icon
128
ResMed
RMD
$32.5B
$49.4M 0.15%
257,904
-30,157
-10% -$6.12M
TXN icon
129
Texas Instruments
TXN
$255B
$46.6M 0.14%
239,541
-16,883
-7% -$3.12M
KMX icon
130
CarMax
KMX
$8.2B
$45.4M 0.14%
618,937
-168,091
-21% -$12.1M
AAON icon
131
Aaon
AAON
$7B
$44.9M 0.14%
+515,063
New +$42M
EMR icon
132
Emerson Electric
EMR
$91.4B
$44.7M 0.14%
405,563
-56,332
-12% -$6.23M
TSLA icon
133
Tesla
TSLA
$1.28T
$43.1M 0.13%
218,021
-10,762
-5% -$1.88M
BLK icon
134
Blackrock
BLK
$179B
$42M 0.13%
53,332
+5,730
+12% +$4.47M
VRTX icon
135
Vertex Pharmaceuticals
VRTX
$134B
$41.8M 0.13%
89,108
+18,197
+26% +$7.9M
BRK.A icon
136
Berkshire Hathaway Class A
BRK.A
$1.09T
$41M 0.13%
67
-2
-3% -$1.23M
MRVL icon
137
Marvell Technology
MRVL
$200B
$40.6M 0.13%
580,208
-2,667
-0.5% -$187K
PCOR icon
138
Procore
PCOR
$8.69B
$40.4M 0.12%
609,275
+532,771
+696% +$37M
RSP icon
139
Invesco S&P 500 Equal Weight ETF
RSP
$99.3B
$39.9M 0.12%
243,114
+37,911
+18% +$6.24M
MU icon
140
Micron Technology
MU
$1.05T
$39.7M 0.12%
301,877
+842
+0.3% +$106K
CAT icon
141
Caterpillar
CAT
$396B
$39.2M 0.12%
117,574
-49
-0% -$17K
MKC icon
142
McCormick & Company Non-Voting
MKC
$14.3B
$39.1M 0.12%
551,743
-39,413
-7% -$2.87M
IEFA icon
143
iShares Core MSCI EAFE ETF
IEFA
$196B
$39.1M 0.12%
538,540
+47,498
+10% +$3.5M
AMD icon
144
Advanced Micro Devices
AMD
$797B
$38.5M 0.12%
237,556
+15,475
+7% +$2.49M
HEI icon
145
HEICO Corp
HEI
$51.5B
$38.5M 0.12%
172,064
+5,899
+4% +$1.25M
IWD icon
146
iShares Russell 1000 Value ETF
IWD
$83.8B
$38.1M 0.12%
218,426
+10,915
+5% +$1.91M
WST icon
147
West Pharmaceutical
WST
$24.7B
$37.1M 0.11%
112,520
+10,654
+10% +$3.77M
TOST icon
148
Toast
TOST
$19.4B
$37.1M 0.11%
1,437,910
+392,165
+38% +$9.48M
CME icon
149
CME Group
CME
$94.1B
$37M 0.11%
188,147
-21,306
-10% -$4.4M
MDY icon
150
State Street SPDR S&P MIDCAP 400 ETF Trust
MDY
$27.1B
$36.6M 0.11%
68,429
+1,661
+2% +$893K
4 5
6
7 8

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William Blair & Company's Q2 2024 Portfolio in Review

As of Q2 2024, William Blair & Company held 1,893 positions worth $32.4B, up 1.8% from $31.8B the previous quarter. Its ten largest holdings account for 24% of the portfolio.

William Blair & Company's Q2 2024 filing shows 89 new, 716 increased, 748 reduced and 71 closed positions. Its largest new stake was Aaon: 515,063 shares worth $44.9M. The largest sale was PowerSchool Holdings, Inc., an estimated $70.4M.

By sector, the portfolio is most concentrated in Technology at 27% of assets, up from 26% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q2 2024 buy was Aaon: 515,063 shares worth $44.9M.
  • William Blair & Company added most to Apple in Q2 2024, an estimated $57.9M increase.
  • William Blair & Company's biggest Q2 2024 reduction was PowerSchool Holdings, Inc., cutting an estimated $70.4M.
  • William Blair & Company fully exited Pioneer Natural Resource Co. in Q2 2024, selling an estimated $40M.
  • William Blair & Company's ten largest holdings make up 24% of its $32.4B portfolio in Q2 2024.
  • William Blair & Company opened 89 new positions and closed 71 in Q2 2024.
  • William Blair & Company's portfolio value rose 1.8% quarter-over-quarter to $32.4B.

Based on William Blair & Company's 13F filing for Q2 2024, filed 12 Aug 2024.