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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
+7.16%
1 Year Est. Return
+25.71%
3 Year Est. Return
+88.7%
5 Year Est. Return
+104.53%
10 Year Est. Return
+606.62%
AUM
$34.1B
AUM Growth
+$1.63B
Cap. Flow
-$169M
Cap. Flow %
-0.5%
Top 10 Hldgs %
23.77%
Holding
1,892
New
86
Increased
671
Reduced
778
Closed
71

Top Buys

Rank Stock Value
1
NVDA icon
NVIDIA
NVDA
+$92.1M
2
AAON icon
Aaon
AAON
+$55.5M
3
P
Everpure Inc
P
+$43.5M
4
BAH icon
Booz Allen Hamilton
BAH
+$29M
5
RBC icon
RBC Bearings
RBC
+$26.8M

Top Sells

Rank Stock Value
1
DXCM icon
DexCom
DXCM
+$128M
2
CRWD icon
CrowdStrike
CRWD
+$42.9M
3
BLK icon
Blackrock
BLK
+$42M
4
CSGP icon
CoStar Group
CSGP
+$41.5M
5
SBUX icon
Starbucks
SBUX
+$38.8M

Sector Composition

Rank Sector Weight
1 Technology 27.11%
2 Healthcare 14.76%
3 Financials 12.67%
4 Industrials 11.93%
5 Miscellaneous 11.54%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
MSFT icon
1
Microsoft
MSFT
$3.75T
$1.62B 4.76%
3,768,737
-20,028
-0.5% -$8.56M
AAPL icon
2
Apple
AAPL
$4.86T
$1.49B 4.37%
6,384,952
-22,794
-0.4% -$5.09M
AMZN icon
3
Amazon
AMZN
$2.73T
$1.14B 3.34%
6,097,144
+23,627
+0.4% +$4.31M
V icon
4
Visa
V
$701B
$592M 1.74%
2,151,819
-32,839
-2% -$8.88M
IDXX icon
5
Idexx Laboratories
IDXX
$40.1B
$589M 1.73%
1,165,569
-7,489
-0.6% -$3.64M
NVDA icon
6
NVIDIA
NVDA
$5.09T
$570M 1.67%
4,693,108
+779,849
+20% +$92.1M
GOOG icon
7
Alphabet (Google) Class C
GOOG
$4.23T
$554M 1.63%
3,313,931
-144,449
-4% -$24.4M
COST icon
8
Costco
COST
$408B
$522M 1.53%
588,458
+19,805
+3% +$17.2M
MA icon
9
Mastercard
MA
$503B
$514M 1.51%
1,041,149
-5,593
-0.5% -$2.6M
JPM icon
10
JPMorgan Chase
JPM
$931B
$508M 1.49%
2,409,476
+3,777
+0.2% +$796K
DHR icon
11
Danaher
DHR
$143B
$491M 1.44%
1,764,997
-12,033
-0.7% -$3.18M
ZTS icon
12
Zoetis
ZTS
$30.4B
$463M 1.36%
2,367,577
+819
+0% +$151K
SPY icon
13
State Street SPDR S&P 500 ETF Trust
SPY
$803B
$462M 1.36%
805,359
+32,083
+4% +$17.7M
GOOGL icon
14
Alphabet (Google) Class A
GOOGL
$4.27T
$435M 1.28%
2,624,574
-61,482
-2% -$10.3M
PGR icon
15
Progressive
PGR
$128B
$408M 1.2%
1,609,086
+79,565
+5% +$18.5M
WSO icon
16
Watsco Inc
WSO
$12.9B
$386M 1.13%
785,045
-16,107
-2% -$7.74M
FISV
17
Fiserv Inc
FISV
$27.1B
$379M 1.11%
2,110,702
-60,689
-3% -$10M
ADBE icon
18
Adobe
ADBE
$106B
$337M 0.99%
651,352
-26,467
-4% -$14.5M
SYK icon
19
Stryker
SYK
$108B
$336M 0.99%
930,377
+2,467
+0.3% +$852K
UBER icon
20
Uber
UBER
$148B
$307M 0.9%
4,082,126
+74,418
+2% +$5.24M
HD icon
21
Home Depot
HD
$310B
$305M 0.9%
752,925
+22,978
+3% +$8.38M
LLY icon
22
Eli Lilly
LLY
$1.01T
$301M 0.88%
339,298
-7,290
-2% -$6.55M
ICE icon
23
Intercontinental Exchange
ICE
$88.6B
$296M 0.87%
1,844,060
-11,313
-0.6% -$1.74M
CSGP icon
24
CoStar Group
CSGP
$12.8B
$291M 0.85%
3,850,836
-546,902
-12% -$41.5M
POOL icon
25
Pool Corp
POOL
$6.24B
$288M 0.85%
764,189
-90,520
-11% -$31.3M
1
2 3 4 5

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William Blair & Company's Q3 2024 Portfolio in Review

As of Q3 2024, William Blair & Company held 1,892 positions worth $34.1B, up 5% from $32.4B the previous quarter. Its ten largest holdings account for 24% of the portfolio.

William Blair & Company's Q3 2024 filing shows 86 new, 671 increased, 778 reduced and 71 closed positions. Its largest new stake was PAR Technology: 73,733 shares worth $3.84M. The largest sale was DexCom, an estimated $128M.

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

  • William Blair & Company's largest Q3 2024 buy was PAR Technology: 73,733 shares worth $3.84M.
  • William Blair & Company added most to NVIDIA in Q3 2024, an estimated $92.1M increase.
  • William Blair & Company's biggest Q3 2024 reduction was DexCom, cutting an estimated $128M.
  • William Blair & Company fully exited Blackrock in Q3 2024, selling an estimated $42M.
  • William Blair & Company's ten largest holdings make up 24% of its $34.1B portfolio in Q3 2024.
  • William Blair & Company opened 86 new positions and closed 71 in Q3 2024.
  • William Blair & Company's portfolio value rose 5% quarter-over-quarter to $34.1B.

Based on William Blair & Company's 13F filing for Q3 2024, filed 12 Nov 2024.