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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
+7.16%
1 Year Est. Return
+18.88%
3 Year Est. Return
+73.84%
5 Year Est. Return
+90.13%
10 Year Est. Return
+563.35%
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 Consumer Discretionary 7.9%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow
BMO icon
1001
Bank of Montreal
BMO
$127B
$729K ﹤0.01%
8,086
+418
+5% +$35.7K
DCOM icon
1002
Dime Commercial Bancshares
DCOM
$1.78B
$729K ﹤0.01%
25,324
ONON icon
1003
On Holding
ONON
$12.5B
$728K ﹤0.01%
14,517
+200
+1% +$8.58K
FOUR icon
1004
Shift4
FOUR
$3.26B
$727K ﹤0.01%
8,203
+5,224
+175% +$396K
SAP icon
1005
SAP
SAP
$238B
$724K ﹤0.01%
3,160
+76
+2% +$16.2K
VTR icon
1006
Ventas
VTR
$47.9B
$722K ﹤0.01%
11,251
+618
+6% +$36.1K
TPG icon
1007
TPG
TPG
$7.86B
$720K ﹤0.01%
+12,510
New +$616K
BELFB
1008
Bel Fuse Inc Class B
BELFB
$4.21B
$718K ﹤0.01%
9,150
IEX icon
1009
IDEX
IEX
$17.3B
$714K ﹤0.01%
3,330
+288
+9% +$58K
BRO icon
1010
Brown & Brown
BRO
$23.9B
$713K ﹤0.01%
+6,887
New +$685K
FLG
1011
Flagstar Bank National Association
FLG
$5.82B
$712K ﹤0.01%
+63,430
New +$675K
MXL icon
1012
MaxLinear
MXL
$6.8B
$710K ﹤0.01%
49,042
-6,613
-12% -$105K
HUBG icon
1013
HUB Group
HUBG
$2.92B
$706K ﹤0.01%
15,533
-222
-1% -$9.84K
ST icon
1014
Sensata Technologies
ST
$6.79B
$704K ﹤0.01%
19,632
-991
-5% -$36.9K
SRCL
1015
DELISTED
Stericycle Inc
SRCL
$703K ﹤0.01%
11,530
+800
+7% +$47.5K
CTRA
1016
DELISTED
Coterra Energy
CTRA
$702K ﹤0.01%
29,300
+4,577
+19% +$113K
STE icon
1017
Steris
STE
$23.1B
$698K ﹤0.01%
2,876
-771
-21% -$180K
GTLS
1018
DELISTED
Chart Industries
GTLS
$695K ﹤0.01%
5,596
+1,025
+22% +$135K
ONB icon
1019
Old National Bancorp
ONB
$10.2B
$694K ﹤0.01%
37,177
+97
+0.3% +$1.82K
DECK icon
1020
Deckers Outdoor
DECK
$13.3B
$689K ﹤0.01%
4,320
-402
-9% -$61.3K
GDXJ icon
1021
VanEck Junior Gold Miners ETF
GDXJ
$8.46B
$689K ﹤0.01%
14,110
-150
-1% -$6.9K
VRT icon
1022
Vertiv
VRT
$105B
$683K ﹤0.01%
6,868
+11
+0.2% +$912
SLRN
1023
DELISTED
ACELYRIN
SLRN
$683K ﹤0.01%
138,595
NACP icon
1024
Impact Shares NAACP Minority Empowerment ETF
NACP
$76.8M
$679K ﹤0.01%
16,414
-267
-2% -$10.6K
MHK icon
1025
Mohawk Industries
MHK
$9.22B
$677K ﹤0.01%
4,216
-1,729
-29% -$249K

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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.