We are live on ! Find out more
William Blair & Company

William Blair & Company Portfolio holdings

AUM $34.9B
1-Year Est. Return 18.88%
This Fund
S&P 500
This Quarter Est. Return
+3.05%
1 Year Est. Return
+18.88%
3 Year Est. Return
+73.84%
5 Year Est. Return
+90.13%
10 Year Est. Return
+563.35%
AUM
$65B
AUM Growth
+$3.08B
Cap. Flow
+$214M
Cap. Flow %
0.33%
Top 10 Hldgs %
7.07%
Holding
2,420
New
292
Increased
857
Reduced
826
Closed
260

Sector Composition

Rank Sector Weight
1 Healthcare 7.54%
2 Industrials 7.52%
3 Consumer Discretionary 6.41%
4 Technology 6.29%
5 Financials 6.1%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow
ACWI icon
801
iShares MSCI ACWI ETF
ACWI
$33.5B
$1.28M ﹤0.01%
21,280
+2,530
+13% +$150K
MU icon
802
Micron Technology
MU
$971B
$1.27M ﹤0.01%
46,829
+995
+2% +$29.7K
MASI
803
DELISTED
Masimo
MASI
$1.26M ﹤0.01%
38,375
-5,650
-13% -$162K
BBBY
804
DELISTED
Bed Bath & Beyond Inc
BBBY
$1.26M ﹤0.01%
16,420
-580
-3% -$44K
BPOP icon
805
Popular Inc
BPOP
$11.2B
$1.26M ﹤0.01%
36,582
-82
-0.2% -$2.71K
APC
806
DELISTED
Anadarko Petroleum
APC
$1.25M ﹤0.01%
15,160
-651
-4% -$53.3K
SCZ icon
807
iShares MSCI EAFE Small-Cap ETF
SCZ
$13.7B
$1.25M ﹤0.01%
25,272
-130,670
-84% -$6.32M
LMT icon
808
Lockheed Martin
LMT
$134B
$1.25M ﹤0.01%
6,147
+686
+13% +$135K
NUVA
809
DELISTED
NuVasive, Inc.
NUVA
$1.25M ﹤0.01%
27,134
-371
-1% -$17.2K
PNW icon
810
Pinnacle West Capital
PNW
$12.4B
$1.24M ﹤0.01%
19,459
+1,578
+9% +$105K
SHOO icon
811
Steven Madden
SHOO
$3.56B
$1.23M ﹤0.01%
48,524
PH icon
812
Parker-Hannifin
PH
$136B
$1.23M ﹤0.01%
10,348
+5,688
+122% +$689K
SAN icon
813
Banco Santander
SAN
$212B
$1.23M ﹤0.01%
173,615
-4,151
-2% -$28.1K
CNK icon
814
Cinemark Holdings
CNK
$4.29B
$1.23M ﹤0.01%
27,193
-12,937
-32% -$511K
HURN icon
815
Huron Consulting
HURN
$2.44B
$1.22M ﹤0.01%
18,469
+2,317
+14% +$163K
STJ
816
DELISTED
St Jude Medical
STJ
$1.22M ﹤0.01%
18,646
-11,900
-39% -$791K
RNDY
817
DELISTED
ROUNDYS INC COM STK
RNDY
$1.22M ﹤0.01%
249,253
+4,053
+2% +$17.2K
CNC icon
818
Centene
CNC
$32.7B
$1.21M ﹤0.01%
34,240
+14,260
+71% +$429K
DNOW icon
819
DNOW Inc
DNOW
$2.98B
$1.21M ﹤0.01%
55,816
-5,461
-9% -$127K
TCO
820
DELISTED
Taubman Centers Inc.
TCO
$1.21M ﹤0.01%
15,654
+1,296
+9% +$102K
KATE
821
DELISTED
Kate Spade & Company
KATE
$1.21M ﹤0.01%
36,128
LNC icon
822
Lincoln National
LNC
$8.89B
$1.2M ﹤0.01%
20,942
-5,474
-21% -$306K
SLCA
823
DELISTED
U.S. SILICA HOLDINGS, INC.
SLCA
$1.2M ﹤0.01%
33,734
-179,300
-84% -$5.24M
EWP icon
824
iShares MSCI Spain ETF
EWP
$2.17B
$1.2M ﹤0.01%
34,400
+1,400
+4% +$47.2K
HRB icon
825
H&R Block
HRB
$5.9B
$1.19M ﹤0.01%
37,242
+3,180
+9% +$106K

Similar funds

William Blair & Company's Q1 2015 Portfolio in Review

As of Q1 2015, William Blair & Company held 2,420 positions worth $65B, up 5% from $61.9B the previous quarter. Its ten largest holdings account for 7.1% of the portfolio.

William Blair & Company's Q1 2015 filing shows 292 new, 857 increased, 826 reduced and 260 closed positions. Its largest new stake was First American: 468,238 shares worth $16.7M. The largest sale was PRECISION CASTPARTS CORP, an estimated $146M.

By sector, the portfolio is most concentrated in Healthcare at 7.5% of assets, down from 7.7% a quarter earlier, followed by Industrials and Consumer Discretionary.

  • William Blair & Company's largest Q1 2015 buy was First American: 468,238 shares worth $16.7M.
  • William Blair & Company added most to Cerner Corp in Q1 2015, an estimated $197M increase.
  • William Blair & Company's biggest Q1 2015 reduction was PRECISION CASTPARTS CORP, cutting an estimated $146M.
  • William Blair & Company fully exited Global Brokerage, Inc. Class A Common Stock in Q1 2015, selling an estimated $91.3M.
  • William Blair & Company's ten largest holdings make up 7.1% of its $65B portfolio in Q1 2015.
  • William Blair & Company opened 292 new positions and closed 260 in Q1 2015.
  • William Blair & Company's portfolio value rose 5% quarter-over-quarter to $65B.

Based on William Blair & Company's 13F filing for Q1 2015, filed 11 May 2015.