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
-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
ECAT icon
1201
BlackRock ESG Capital Allocation Term Trust
ECAT
$1.57B
$345K ﹤0.01%
21,871
-8,197
-27% -$135K
SCHP icon
1202
Schwab US TIPS ETF
SCHP
$16.2B
$344K ﹤0.01%
12,801
-633
-5% -$16.6K
SLRN
1203
DELISTED
ACELYRIN
SLRN
$342K ﹤0.01%
138,595
– –
IKT icon
1204
Inhibikase Therapeutics
IKT
$378M
$342K ﹤0.01%
155,953
+21,000
+16% +$52.8K
FAF icon
1205
First American
FAF
$7.56B
$341K ﹤0.01%
5,202
-2
-0% -$127
BRKL
1206
DELISTED
Brookline Bancorp
BRKL
$340K ﹤0.01%
31,210
– –
BMRN icon
1207
BioMarin Pharmaceuticals
BMRN
$13.3B
$339K ﹤0.01%
4,800
-27,542
-85% -$1.85M
UTHR icon
1208
United Therapeutics
UTHR
$21.5B
$339K ﹤0.01%
1,100
-32
-3% -$11K
GAP
1209
The Gap Inc
GAP
$7.34B
$336K ﹤0.01%
16,287
-4,818
-23% -$108K
XMMO icon
1210
Invesco S&P MidCap Momentum ETF
XMMO
$7.61B
$335K ﹤0.01%
2,946
+91
+3% +$11.2K
ZION icon
1211
Zions Bancorporation
ZION
$10.5B
$335K ﹤0.01%
6,710
-3
-0% -$162
ONEQ icon
1212
Fidelity Nasdaq Composite Index ETF
ONEQ
$10.9B
$334K ﹤0.01%
4,913
+1,030
+27% +$76.9K
ECHO
1213
EchoStar
ECHO
$26.6B
$334K ﹤0.01%
+13,058
New +$355K
ITIC
1214
Investors Title Co
ITIC
$534M
$334K ﹤0.01%
1,384
– –
MGPI icon
1215
MGP Ingredients
MGPI
$389M
$332K ﹤0.01%
+11,315
New +$379K
OLED icon
1216
Universal Display
OLED
$4.18B
$332K ﹤0.01%
2,383
-100
-4% -$14.9K
MDGL icon
1217
Madrigal Pharmaceuticals
MDGL
$11.7B
$332K ﹤0.01%
+1,003
New +$330K
VIOO icon
1218
Vanguard S&P Small-Cap 600 ETF
VIOO
$4.35B
$331K ﹤0.01%
3,431
-13,140
-79% -$1.37M
BAC.PRL icon
1219
Bank of America Series L
BAC.PRL
$4.01B
$331K ﹤0.01%
268
– –
CNP icon
1220
CenterPoint Energy
CNP
$26.7B
$331K ﹤0.01%
9,129
-496
-5% -$16.6K
FUTY icon
1221
Fidelity MSCI Utilities Index ETF
FUTY
$2.31B
$330K ﹤0.01%
6,486
+15
+0.2% +$756
W icon
1222
Wayfair
W
$13.9B
$330K ﹤0.01%
10,314
-61
-0.6% -$2.54K
IOO icon
1223
iShares Global 100 ETF
IOO
$9.46B
$330K ﹤0.01%
3,429
– –
TCOM icon
1224
Trip.com Group
TCOM
$28.3B
$330K ﹤0.01%
5,193
-156
-3% -$10.2K
NSIT icon
1225
Insight Enterprises
NSIT
$4.6B
$330K ﹤0.01%
2,200
-1,455
-40% -$234K
47 48
49
50 51

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 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
HF
HRT Financial New York $40.1B AUM 58.22% 1-Year Est. Return
First Manhattan
First Manhattan New York $36.1B AUM 11.5% 1-Year Est. Return
Viking Global Investors
Viking Global Investors Stamford, Connecticut $35.7B AUM 21.3% 1-Year Est. Return

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.