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William Blair & Company

William Blair & Company Portfolio holdings

AUM $34.9B
1-Year Est. Return 18.88%
This Fund
S&P 500
This Quarter Est. Return
+1.74%
1 Year Est. Return
+18.88%
3 Year Est. Return
+73.84%
5 Year Est. Return
+90.13%
10 Year Est. Return
+512.03%
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
MSFT icon
1
Microsoft
MSFT
$2.94T
$1.69B 5.22%
3,788,765
+124,105
+3% +$52.4M
AAPL icon
2
Apple
AAPL
$5.01T
$1.35B 4.16%
6,407,746
+310,626
+5% +$57.9M
AMZN icon
3
Amazon
AMZN
$2.46T
$1.17B 3.62%
6,073,517
+127,076
+2% +$23.3M
GOOG icon
4
Alphabet (Google) Class C
GOOG
$4.09T
$634M 1.96%
3,458,380
-5,686
-0.2% -$967K
V icon
5
Visa
V
$710B
$573M 1.77%
2,184,658
-8,741
-0.4% -$2.4M
IDXX icon
6
Idexx Laboratories
IDXX
$45B
$572M 1.76%
1,173,058
-16,086
-1% -$8.08M
GOOGL icon
7
Alphabet (Google) Class A
GOOGL
$4.1T
$489M 1.51%
2,686,056
+151,589
+6% +$25.6M
DXCM icon
8
DexCom
DXCM
$29.2B
$487M 1.5%
4,299,419
-233,268
-5% -$29.5M
JPM icon
9
JPMorgan Chase
JPM
$925B
$487M 1.5%
2,405,699
+187,177
+8% +$36.6M
NVDA icon
10
NVIDIA
NVDA
$4.64T
$483M 1.49%
3,913,259
+76,439
+2% +$7.73M
COST icon
11
Costco
COST
$433B
$483M 1.49%
568,653
-1,110
-0.2% -$866K
MA icon
12
Mastercard
MA
$502B
$462M 1.42%
1,046,742
+120
+0% +$54.7K
DHR icon
13
Danaher
DHR
$141B
$444M 1.37%
1,777,030
+15,766
+0.9% +$3.98M
SPY icon
14
State Street SPDR S&P 500 ETF Trust
SPY
$776B
$421M 1.3%
773,276
+38,961
+5% +$20.4M
ZTS icon
15
Zoetis
ZTS
$33B
$410M 1.27%
2,366,758
-66,276
-3% -$11M
ADBE icon
16
Adobe
ADBE
$105B
$377M 1.16%
677,819
+556
+0.1% +$269K
WSO icon
17
Watsco Inc
WSO
$12.7B
$371M 1.14%
801,152
+9,141
+1% +$4.18M
CSGP icon
18
CoStar Group
CSGP
$12.1B
$326M 1.01%
4,397,738
-22,040
-0.5% -$1.87M
FISV
19
Fiserv Inc
FISV
$29.6B
$324M 1%
2,171,391
+52,748
+2% +$7.98M
PGR icon
20
Progressive
PGR
$129B
$318M 0.98%
1,529,521
-38,677
-2% -$8.1M
SYK icon
21
Stryker
SYK
$135B
$316M 0.97%
927,910
+1,332
+0.1% +$451K
LLY icon
22
Eli Lilly
LLY
$1.09T
$314M 0.97%
346,588
+15,133
+5% +$12.1M
UBER icon
23
Uber
UBER
$143B
$291M 0.9%
4,007,708
+797,124
+25% +$55.4M
CPRT icon
24
Copart
CPRT
$28.9B
$284M 0.88%
5,241,560
+6,296
+0.1% +$344K
WDAY icon
25
Workday
WDAY
$41.6B
$281M 0.87%
1,256,416
-281,594
-18% -$67.8M
1
2 3 4 5

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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.