We are live on ! Find out more
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
OGS icon
1426
ONE Gas
OGS
$5.05B
$207K ﹤0.01%
2,996
+1
+0% +$73
SAN icon
1427
Banco Santander
SAN
$211B
$206K ﹤0.01%
45,234
+163
+0.4% +$783
FCN icon
1428
FTI Consulting
FCN
$4.22B
$205K ﹤0.01%
1,075
-35
-3% -$7.21K
TILT icon
1429
FlexShares Morningstar US Market Factors Tilt Index Fund
TILT
$2.26B
$205K ﹤0.01%
949
– –
SLQT icon
1430
SelectQuote
SLQT
$124M
$205K ﹤0.01%
55,000
– –
TLRY icon
1431
Tilray
TLRY
$637M
$204K ﹤0.01%
15,373
– –
DLS icon
1432
WisdomTree International SmallCap Dividend Fund
DLS
$1.08B
$204K ﹤0.01%
3,242
+2
+0.1% +$130
PECO icon
1433
Phillips Edison & Co
PECO
$5.17B
$201K ﹤0.01%
5,379
-1,000
-16% -$38.1K
MTZ icon
1434
MasTec
MTZ
$22.6B
$201K ﹤0.01%
+1,478
New +$198K
DFAT icon
1435
Dimensional US Targeted Value ETF
DFAT
$14.8B
$201K ﹤0.01%
3,609
+88
+2% +$5.04K
BLDR icon
1436
Builders FirstSource
BLDR
$7.79B
$200K ﹤0.01%
1,401
+40
+3% +$7.08K
PNFP icon
1437
Pinnacle Financial Partners Inc
PNFP
$16.1B
$200K ﹤0.01%
+1,750
New +$197K
BITO icon
1438
ProShares Bitcoin Strategy ETF
BITO
$1.43B
$199K ﹤0.01%
8,733
+4,987
+133% +$111K
RSPG icon
1439
Invesco S&P 500 Equal Weight Energy ETF
RSPG
$596M
$198K ﹤0.01%
2,597
-678
-21% -$54.1K
SPTM icon
1440
State Street SPDR Portfolio S&P 1500 Composite Stock Market ETF
SPTM
$14.1B
$194K ﹤0.01%
2,716
+1,014
+60% +$73K
EUFN icon
1441
iShares MSCI Europe Financials ETF
EUFN
$4.29B
$190K ﹤0.01%
8,165
-1,260
-13% -$30.2K
VONE icon
1442
Vanguard Russell 1000 ETF
VONE
$8.68B
$187K ﹤0.01%
700
– –
BLZE icon
1443
Backblaze
BLZE
$1.2B
$185K ﹤0.01%
+30,694
New +$208K
XVV icon
1444
iShares ESG Screened S&P 500 ETF
XVV
$677M
$185K ﹤0.01%
4,073
+3,700
+992% +$168K
VMD icon
1445
Viemed Healthcare
VMD
$353M
$184K ﹤0.01%
23,000
– –
TLH icon
1446
iShares 10-20 Year Treasury Bond ETF
TLH
$10.8B
$184K ﹤0.01%
1,851
+431
+30% +$44.6K
EWT icon
1447
iShares MSCI Taiwan ETF
EWT
$11.4B
$183K ﹤0.01%
3,529
– –
TFPM icon
1448
Triple Flag Precious Metals
TFPM
$6.64B
$180K ﹤0.01%
12,000
– –
VRP icon
1449
Invesco Variable Rate Preferred ETF
VRP
$3.01B
$179K ﹤0.01%
7,416
+16
+0.2% +$391
RPAY icon
1450
Repay Holdings
RPAY
$311M
$179K ﹤0.01%
23,508
-8,409
-26% -$67.2K
56 57
58
59 60

Similar funds

Parallax Volatility Advisers
Parallax Volatility Advisers San Francisco, California $38.6B AUM 45.89% 1-Year Est. Return
Credit Agricole
Credit Agricole Montrouge Cedex, France $38.1B AUM
Carson Wealth (CWM LLC)
Carson Wealth (CWM LLC) Omaha, Nebraska $38.1B AUM 19.66% 1-Year Est. Return
Nomura Asset Management
Nomura Asset Management Tokyo, Japan $38.8B AUM 30.94% 1-Year Est. Return
Nomura Holdings
Nomura Holdings Tokyo, Japan $37.7B AUM 34.44% 1-Year Est. Return
Fayez Sarofim & Co
Fayez Sarofim & Co Houston, Texas $39.1B AUM 15.14% 1-Year Est. Return
Grantham, Mayo, Van Otterloo & Co (GMO)
Grantham, Mayo, Van Otterloo & Co (GMO) Boston, Massachusetts $39.1B AUM 28.69% 1-Year Est. Return
HF
HRT Financial New York $40.1B AUM 58.22% 1-Year Est. Return

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.