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
+10.07%
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
$31.8B
AUM Growth
+$2.49B
Cap. Flow
+$139M
Cap. Flow %
0.44%
Top 10 Hldgs %
23.43%
Holding
1,869
New
90
Increased
714
Reduced
722
Closed
82

Top Buys

Rank Stock Value
1
UBER icon
Uber
UBER
+$24.2M
2
IOT icon
Samsara
IOT
+$23.9M
3
PRCT icon
Procept Biorobotics
PRCT
+$20.5M
4
ISRG icon
Intuitive Surgical
ISRG
+$19.9M
5
AMZN icon
Amazon
AMZN
+$19.4M

Top Sells

Rank Stock Value
1
SPLK
Splunk Inc
SPLK
+$67.1M
2
MA icon
Mastercard
MA
+$65.4M
3
AON icon
Aon
AON
+$40.3M
4
FLYW icon
Flywire
FLYW
+$25.7M
5
DV icon
DoubleVerify
DV
+$19.5M

Sector Composition

Rank Sector Weight
1 Technology 25.75%
2 Healthcare 17.03%
3 Financials 12.35%
4 Industrials 11.88%
5 Consumer Discretionary 8.53%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
IRM icon
176
Iron Mountain
IRM
$37B
$28M 0.09%
349,411
+10,326
+3% +$747K
ZBRA icon
177
Zebra Technologies
ZBRA
$17.9B
$27.7M 0.09%
91,815
-262
-0.3% -$70.1K
WEX icon
178
WEX
WEX
$6.48B
$27.6M 0.09%
116,152
-18,298
-14% -$3.94M
TJX icon
179
TJX Companies
TJX
$169B
$26.8M 0.08%
264,295
-9,504
-3% -$921K
UPS icon
180
United Parcel Service
UPS
$88.4B
$26.4M 0.08%
177,611
-10,985
-6% -$1.67M
IJH icon
181
iShares Core S&P Mid-Cap ETF
IJH
$128B
$26.3M 0.08%
432,614
+17,014
+4% +$963K
FIS icon
182
Fidelity National Information Services
FIS
$21.6B
$26.1M 0.08%
352,405
+139,336
+65% +$9.07M
TOST icon
183
Toast
TOST
$19.7B
$26.1M 0.08%
1,045,745
+587,788
+128% +$12.2M
IJR icon
184
iShares Core S&P Small-Cap ETF
IJR
$112B
$25M 0.08%
226,546
+23,925
+12% +$2.54M
CL icon
185
Colgate-Palmolive
CL
$73.6B
$25M 0.08%
277,762
+545
+0.2% +$46.2K
TROW icon
186
T. Rowe Price
TROW
$23.8B
$24.9M 0.08%
204,437
+52,661
+35% +$5.88M
VKTX icon
187
Viking Therapeutics
VKTX
$3.97B
$24.5M 0.08%
299,235
+240,863
+413% +$10.7M
ICLR icon
188
Icon
ICLR
$12.9B
$24.4M 0.08%
72,552
+16,952
+30% +$5M
SNPS icon
189
Synopsys
SNPS
$79B
$24M 0.08%
41,992
+4,579
+12% +$2.52M
EXAS
190
DELISTED
Exact Sciences
EXAS
$24M 0.08%
346,869
-22,988
-6% -$1.45M
PAYX icon
191
Paychex
PAYX
$42.8B
$23.9M 0.08%
194,425
-31,701
-14% -$3.85M
DT icon
192
Dynatrace
DT
$14.3B
$23.8M 0.07%
512,603
+124,436
+32% +$6.48M
AXON
193
Axon Enterprise
AXON
$48.7B
$23.6M 0.07%
75,450
+2,486
+3% +$691K
HOLX
194
DELISTED
Hologic
HOLX
$23.5M 0.07%
300,809
-7,706
-2% -$573K
IWB icon
195
iShares Russell 1000 ETF
IWB
$50.2B
$23.3M 0.07%
80,848
-16,577
-17% -$4.54M
VO icon
196
Vanguard Morningstar Mid-Cap ETF
VO
$110B
$23.1M 0.07%
369,304
+12,000
+3% +$709K
DOCU
197
DocuSign
DOCU
$11.1B
$22.7M 0.07%
381,103
-73,273
-16% -$4.14M
PCTY icon
198
Paylocity
PCTY
$7.73B
$22.7M 0.07%
131,915
-2,646
-2% -$437K
SYY icon
199
Sysco
SYY
$40.5B
$22.6M 0.07%
278,723
-1,091
-0.4% -$86K
IUSG icon
200
iShares Core S&P US Growth ETF
IUSG
$33.7B
$22.5M 0.07%
192,264
-6,106
-3% -$679K
6 7
8
9 10

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 Q1 2024 Portfolio in Review

As of Q1 2024, William Blair & Company held 1,869 positions worth $31.8B, up 8.5% from $29.3B the previous quarter. Its ten largest holdings account for 23% of the portfolio.

William Blair & Company's Q1 2024 filing shows 90 new, 714 increased, 722 reduced and 82 closed positions. Its largest new stake was Procept Biorobotics: 429,793 shares worth $21.2M. The largest sale was Splunk Inc, an estimated $67.1M.

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

  • William Blair & Company's largest Q1 2024 buy was Procept Biorobotics: 429,793 shares worth $21.2M.
  • William Blair & Company added most to Uber in Q1 2024, an estimated $24.2M increase.
  • William Blair & Company's biggest Q1 2024 reduction was Mastercard, cutting an estimated $65.4M.
  • William Blair & Company fully exited Splunk Inc in Q1 2024, selling an estimated $67.1M.
  • William Blair & Company's ten largest holdings make up 23% of its $31.8B portfolio in Q1 2024.
  • William Blair & Company opened 90 new positions and closed 82 in Q1 2024.
  • William Blair & Company's portfolio value rose 8.5% quarter-over-quarter to $31.8B.

Based on William Blair & Company's 13F filing for Q1 2024, filed 9 May 2024.