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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
-1.82%
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
$33.2B
AUM Growth
-$1.22B
Cap. Flow
+$11.1M
Cap. Flow %
0.03%
Top 10 Hldgs %
23.77%
Holding
1,895
New
82
Increased
626
Reduced
808
Closed
94

Top Buys

Rank Stock Value
1
META icon
Meta Platforms (Facebook)
META
+$112M
2
AAON icon
Aaon
AAON
+$104M
3
GEV icon
GE Vernova
GEV
+$77.6M
4
QCOM icon
Qualcomm
QCOM
+$47M
5
WM icon
Waste Management
WM
+$44.3M

Top Sells

Rank Stock Value
1
INTU icon
Intuit
INTU
+$65.9M
2
POOL icon
Pool Corp
POOL
+$64.7M
3
DHR icon
Danaher
DHR
+$59.8M
4
ZTS icon
Zoetis
ZTS
+$57.9M
5
SCHW
Charles Schwab
SCHW
+$44.5M

Sector Composition

Rank Sector Weight
1 Technology 26.23%
2 Financials 14.3%
3 Healthcare 12.58%
4 Industrials 12.51%
5 Consumer Discretionary 7.94%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
BND icon
701
Vanguard Total Bond Market
BND
$162B
$2.14M 0.01%
29,074
-564
-2% -$40.9K
RY icon
702
Royal Bank of Canada
RY
$298B
$2.12M 0.01%
18,834
-3,316
-15% -$390K
PEG icon
703
Public Service Enterprise Group
PEG
$37.7B
$2.11M 0.01%
25,581
+2,609
+11% +$218K
CHRW icon
704
C.H. Robinson
CHRW
$17.6B
$2.1M 0.01%
20,489
-560
-3% -$56.6K
BIL icon
705
State Street SPDR Bloomberg 1-3 Month T-Bill ETF
BIL
$46.7B
$2.07M 0.01%
22,595
+15,188
+205% +$1.39M
AMG icon
706
Affiliated Managers Group
AMG
$9.73B
$2.06M 0.01%
12,249
-200
-2% -$34.9K
AFL icon
707
Aflac
AFL
$60.7B
$2.04M 0.01%
18,383
-538
-3% -$57.1K
CORZ icon
708
Core Scientific
CORZ
$6.35B
$2.03M 0.01%
280,875
-101,035
-26% -$1.15M
AGCO icon
709
AGCO
AGCO
$6.98B
$2.03M 0.01%
21,918
-1,049
-5% -$102K
EA
710
DELISTED
Electronic Arts
EA
$2.02M 0.01%
13,971
+2,855
+26% +$386K
KBWB icon
711
Invesco KBW Bank ETF
KBWB
$6.84B
$2.02M 0.01%
32,136
-2,895
-8% -$195K
SPSM icon
712
State Street SPDR Portfolio S&P 600 Small Cap ETF
SPSM
$17.6B
$2.01M 0.01%
49,332
-1,406
-3% -$61.9K
KJUL icon
713
Innovator US Small Cap Power Buffer ETF July
KJUL
$227M
$2.01M 0.01%
71,887
-1,595
-2% -$46.7K
BNY
714
Bank of New York Mellon
BNY
$110B
$2.01M 0.01%
23,912
-693
-3% -$58.2K
DHS icon
715
WisdomTree US High Dividend Fund
DHS
$1.59B
$2.01M 0.01%
20,220
+440
+2% +$42.5K
IYR icon
716
iShares US Real Estate ETF
IYR
$4.58B
$2M 0.01%
20,928
-722
-3% -$68.7K
X
717
DELISTED
US Steel
X
$1.99M 0.01%
47,207
+1,290
+3% +$48.8K
SHV icon
718
iShares 0-1 Year Treasury Bond ETF
SHV
$20.6B
$1.97M 0.01%
17,798
+9,044
+103% +$997K
ES icon
719
Eversource Energy
ES
$27.1B
$1.96M 0.01%
31,536
+406
+1% +$24.2K
CDW icon
720
CDW
CDW
$17.4B
$1.92M 0.01%
11,963
-82,227
-87% -$14.9M
HEI.A icon
721
HEICO Corp Class A
HEI.A
$38.1B
$1.91M 0.01%
9,049
-4
-0% -$775
TTD icon
722
Trade Desk
TTD
$6.8B
$1.9M 0.01%
34,703
+21,779
+169% +$1.97M
AVB icon
723
AvalonBay Communities
AVB
$26.3B
$1.89M 0.01%
8,799
-362
-4% -$78.6K
IJJ icon
724
iShares S&P Mid-Cap 400 Value ETF
IJJ
$9.07B
$1.88M 0.01%
15,702
+308
+2% +$38.6K
BBJP icon
725
JPMorgan BetaBuilders Japan ETF
BBJP
$19.2B
$1.87M 0.01%
33,354
-35
-0.1% -$1.97K
27 28
29
30 31

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William Blair & Company's Q1 2025 Portfolio in Review

As of Q1 2025, William Blair & Company held 1,895 positions worth $33.2B, down 3.6% from $34.4B the previous quarter. Its ten largest holdings account for 24% of the portfolio.

William Blair & Company's Q1 2025 filing shows 82 new, 626 increased, 808 reduced and 94 closed positions. Its largest new stake was CCC Intelligent Solutions: 320,989 shares worth $2.9M. The largest sale was Intuit, an estimated $65.9M.

By sector, the portfolio is most concentrated in Technology at 26% of assets, down from 28% a quarter earlier, followed by Financials and Healthcare.

  • William Blair & Company's largest Q1 2025 buy was CCC Intelligent Solutions: 320,989 shares worth $2.9M.
  • William Blair & Company added most to Meta Platforms (Facebook) in Q1 2025, an estimated $112M increase.
  • William Blair & Company's biggest Q1 2025 reduction was Intuit, cutting an estimated $65.9M.
  • William Blair & Company fully exited Smartsheet Inc. in Q1 2025, selling an estimated $3.52M.
  • William Blair & Company's ten largest holdings make up 24% of its $33.2B portfolio in Q1 2025.
  • William Blair & Company opened 82 new positions and closed 94 in Q1 2025.
  • William Blair & Company's portfolio value fell 3.6% quarter-over-quarter to $33.2B.

Based on William Blair & Company's 13F filing for Q1 2025, filed 9 May 2025.