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
+14.12%
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
$29.3B
AUM Growth
+$3.27B
Cap. Flow
-$91M
Cap. Flow %
-0.31%
Top 10 Hldgs %
24.41%
Holding
1,872
New
83
Increased
624
Reduced
816
Closed
87

Top Buys

Rank Stock Value
1
GWRE icon
Guidewire Software
GWRE
+$37.5M
2
SCHW
Charles Schwab
SCHW
+$37.1M
3
VLTO icon
Veralto
VLTO
+$17.1M
4
VRTX icon
Vertex Pharmaceuticals
VRTX
+$16.7M
5
CSGP icon
CoStar Group
CSGP
+$16.3M

Top Sells

Rank Stock Value
1
DHR icon
Danaher
DHR
+$37.6M
2
IRTC icon
iRhythm Holdings
IRTC
+$26.7M
3
DE icon
Deere & Co
DE
+$22.6M
4
TOST icon
Toast
TOST
+$21.2M
5
KO icon
Coca-Cola
KO
+$20.3M

Sector Composition

Rank Sector Weight
1 Technology 26.35%
2 Healthcare 17.08%
3 Financials 12.09%
4 Industrials 11.7%
5 Consumer Discretionary 8.53%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
FLIC
901
DELISTED
First of Long Island Corp
FLIC
$858K ﹤0.01%
64,809
– –
MSCI icon
902
MSCI
MSCI
$41.8B
$855K ﹤0.01%
1,512
-175
-10% -$90.3K
ACHC icon
903
Acadia Healthcare
ACHC
$2.82B
$853K ﹤0.01%
10,970
+31
+0.3% +$2.29K
RIO icon
904
Rio Tinto
RIO
$160B
$851K ﹤0.01%
11,432
+2,787
+32% +$187K
LAZR
905
DELISTED
Luminar Technologies
LAZR
$845K ﹤0.01%
16,707
-24,110
-59% -$1.2M
IONS icon
906
Ionis Pharmaceuticals
IONS
$9.28B
$841K ﹤0.01%
16,628
+284
+2% +$13.6K
BHP icon
907
BHP
BHP
$222B
$838K ﹤0.01%
12,265
+760
+7% +$45.9K
XLG icon
908
Invesco S&P 500 Top 50 ETF
XLG
$11B
$837K ﹤0.01%
22,190
– –
XSD icon
909
State Street SPDR S&P Semiconductor ETF
XSD
$2.88B
$836K ﹤0.01%
3,718
-494
-12% -$97.1K
VSEC icon
910
VSE Corp
VSEC
$6.48B
$836K ﹤0.01%
12,932
+977
+8% +$57.4K
ACWI icon
911
iShares MSCI ACWI ETF
ACWI
$33.6B
$832K ﹤0.01%
8,175
-86
-1% -$8.23K
URTH icon
912
iShares MSCI World ETF
URTH
$8.4B
$829K ﹤0.01%
6,230
-605
-9% -$75.4K
HES
913
DELISTED
Hess
HES
$828K ﹤0.01%
5,744
+188
+3% +$27.6K
NVRO
914
DELISTED
NEVRO CORP.
NVRO
$826K ﹤0.01%
38,404
-15,456
-29% -$276K
EPI icon
915
WisdomTree India Earnings Fund ETF
EPI
$2.04B
$825K ﹤0.01%
20,115
+3,134
+18% +$119K
VFH icon
916
Vanguard Financials ETF
VFH
$14B
$824K ﹤0.01%
8,932
+129
+1% +$10.8K
LUV icon
917
Southwest Airlines
LUV
$22B
$820K ﹤0.01%
28,402
-368
-1% -$9.57K
CRL icon
918
Charles River Laboratories
CRL
$13.4B
$819K ﹤0.01%
3,464
-138
-4% -$27.1K
INFY icon
919
Infosys
INFY
$50.3B
$819K ﹤0.01%
44,547
+6,492
+17% +$113K
ISTB icon
920
iShares Core 1-5 Year USD Bond ETF
ISTB
$5.14B
$817K ﹤0.01%
17,169
+462
+3% +$21.6K
RNG icon
921
RingCentral
RNG
$5.66B
$816K ﹤0.01%
24,036
-13,964
-37% -$417K
ARGX icon
922
argenx
ARGX
$53.6B
$814K ﹤0.01%
2,140
+261
+14% +$122K
LEN.B icon
923
Lennar Class B
LEN.B
$20.7B
$811K ﹤0.01%
6,367
+20
+0.3% +$2.17K
NJUL icon
924
Innovator Growth-100 Power Buffer ETF July
NJUL
$262M
$811K ﹤0.01%
14,713
– –
GMED icon
925
Globus Medical
GMED
$11.5B
$807K ﹤0.01%
15,151
+175
+1% +$8.53K
35 36
37
38 39

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 Q4 2023 Portfolio in Review

As of Q4 2023, William Blair & Company held 1,872 positions worth $29.3B, up 13% from $26.1B the previous quarter. Its ten largest holdings account for 24% of the portfolio.

William Blair & Company's Q4 2023 filing shows 83 new, 624 increased, 816 reduced and 87 closed positions. Its largest new stake was Veralto: 229,539 shares worth $18.9M. The largest sale was Danaher, an estimated $37.6M.

By sector, the portfolio is most concentrated in Technology at 26% of assets, up from 25% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q4 2023 buy was Veralto: 229,539 shares worth $18.9M.
  • William Blair & Company added most to Guidewire Software in Q4 2023, an estimated $37.5M increase.
  • William Blair & Company's biggest Q4 2023 reduction was Danaher, cutting an estimated $37.6M.
  • William Blair & Company fully exited Seagen Inc. Common Stock in Q4 2023, selling an estimated $13.8M.
  • William Blair & Company's ten largest holdings make up 24% of its $29.3B portfolio in Q4 2023.
  • William Blair & Company opened 83 new positions and closed 87 in Q4 2023.
  • William Blair & Company's portfolio value rose 13% quarter-over-quarter to $29.3B.

Based on William Blair & Company's 13F filing for Q4 2023, filed 12 Feb 2024.