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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
+3.1%
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
$34.4B
AUM Growth
+$328M
Cap. Flow
-$18.6M
Cap. Flow %
-0.05%
Top 10 Hldgs %
25.12%
Holding
1,903
New
83
Increased
650
Reduced
792
Closed
87

Top Buys

Rank Stock Value
1
XYZ
Block Inc
XYZ
+$80.6M
2
BLK icon
Blackrock
BLK
+$53.4M
3
CWAN
Clearwater Analytics
CWAN
+$48.5M
4
NVDA icon
NVIDIA
NVDA
+$47.9M
5
BWXT icon
BWX Technologies
BWXT
+$47M

Top Sells

Rank Stock Value
1
DXCM icon
DexCom
DXCM
+$37.7M
2
CSGP icon
CoStar Group
CSGP
+$34.5M
3
VRTX icon
Vertex Pharmaceuticals
VRTX
+$30M
4
BAH icon
Booz Allen Hamilton
BAH
+$29.1M
5
IDXX icon
Idexx Laboratories
IDXX
+$26.6M

Sector Composition

Rank Sector Weight
1 Technology 28.35%
2 Financials 13.43%
3 Healthcare 12.44%
4 Industrials 11.81%
5 Consumer Discretionary 8.44%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
HUBG icon
1001
HUB Group
HUBG
$2.55B
$691K ﹤0.01%
15,517
-16
-0.1% -$747
XSD icon
1002
State Street SPDR S&P Semiconductor ETF
XSD
$2.88B
$691K ﹤0.01%
2,781
-891
-24% -$218K
HLT icon
1003
Hilton Worldwide
HLT
$72.2B
$686K ﹤0.01%
2,775
-109
-4% -$26.7K
CGNX icon
1004
Cognex
CGNX
$10.4B
$684K ﹤0.01%
19,073
-18,373
-49% -$720K
BHC icon
1005
Bausch Health
BHC
$2.37B
$683K ﹤0.01%
84,707
+2,622
+3% +$21.6K
BIL icon
1006
State Street SPDR Bloomberg 1-3 Month T-Bill ETF
BIL
$46.7B
$677K ﹤0.01%
7,407
-762
-9% -$69.8K
LUV icon
1007
Southwest Airlines
LUV
$22B
$675K ﹤0.01%
20,092
-136
-0.7% -$4.34K
EPP icon
1008
iShares MSCI Pacific ex Japan ETF
EPP
$2.24B
$675K ﹤0.01%
15,408
-28
-0.2% -$1.31K
NACP icon
1009
Impact Shares NAACP Minority Empowerment ETF
NACP
$77.7M
$675K ﹤0.01%
16,505
+91
+0.6% +$3.85K
VSS icon
1010
Vanguard FTSE All-World ex-US Small-Cap Index Fund
VSS
$12B
$666K ﹤0.01%
5,815
-129
-2% -$15.5K
CFG icon
1011
Citizens Financial Group
CFG
$31.2B
$657K ﹤0.01%
15,004
+564
+4% +$24.9K
GBIL icon
1012
Goldman Sachs Access Treasury 0-1 Year ETF
GBIL
$7.59B
$656K ﹤0.01%
6,561
-4
-0.1% -$400
DLTR icon
1013
Dollar Tree
DLTR
$24.9B
$649K ﹤0.01%
8,657
-3,997
-32% -$274K
DTM icon
1014
DT Midstream
DTM
$13.8B
$648K ﹤0.01%
6,515
+420
+7% +$40K
CRS icon
1015
Carpenter Technology
CRS
$26.6B
$645K ﹤0.01%
3,800
– –
LAMR icon
1016
Lamar Advertising Co
LAMR
$15.8B
$645K ﹤0.01%
5,295
+472
+10% +$61.7K
ECPG icon
1017
Encore Capital Group
ECPG
$2.15B
$644K ﹤0.01%
13,482
-40
-0.3% -$1.9K
EVRG icon
1018
Evergy
EVRG
$19.3B
$643K ﹤0.01%
10,449
-162
-2% -$10K
FWONK icon
1019
Liberty Media Series C
FWONK
$26B
$640K ﹤0.01%
6,908
-454
-6% -$38.5K
VTR icon
1020
Ventas
VTR
$46.3B
$640K ﹤0.01%
10,867
-384
-3% -$24.1K
FANG icon
1021
Diamondback Energy
FANG
$55.9B
$639K ﹤0.01%
3,898
-1,032
-21% -$182K
PJAN icon
1022
Innovator US Equity Power Buffer ETF January
PJAN
$1.43B
$637K ﹤0.01%
15,068
– –
RDFN
1023
DELISTED
Redfin
RDFN
$634K ﹤0.01%
80,606
-65,475
-45% -$635K
FNDX icon
1024
Schwab Fundamental US Large Company Index ETF
FNDX
$27.6B
$632K ﹤0.01%
26,703
+4,014
+18% +$97.3K
GOVT icon
1025
iShares US Treasury Bond ETF
GOVT
$43.8B
$630K ﹤0.01%
27,397
+9,848
+56% +$225K
39 40
41
42 43

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William Blair & Company's Q4 2024 Portfolio in Review

As of Q4 2024, William Blair & Company held 1,903 positions worth $34.4B, up 0.96% from $34.1B the previous quarter. Its ten largest holdings account for 25% of the portfolio.

William Blair & Company's Q4 2024 filing shows 83 new, 650 increased, 792 reduced and 87 closed positions. Its largest new stake was Blackrock: 52,623 shares worth $53.9M. The largest sale was DexCom, an estimated $37.7M.

By sector, the portfolio is most concentrated in Technology at 28% of assets, up from 27% a quarter earlier, followed by Financials and Healthcare.

  • William Blair & Company's largest Q4 2024 buy was Blackrock: 52,623 shares worth $53.9M.
  • William Blair & Company added most to Block Inc in Q4 2024, an estimated $80.6M increase.
  • William Blair & Company's biggest Q4 2024 reduction was DexCom, cutting an estimated $37.7M.
  • William Blair & Company fully exited Rush Street Interactive in Q4 2024, selling an estimated $5.79M.
  • William Blair & Company's ten largest holdings make up 25% of its $34.4B portfolio in Q4 2024.
  • William Blair & Company opened 83 new positions and closed 87 in Q4 2024.
  • William Blair & Company's portfolio value rose 0.96% quarter-over-quarter to $34.4B.

Based on William Blair & Company's 13F filing for Q4 2024, filed 12 Feb 2025.