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
+23.04%
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
$16.4B
AUM Growth
+$2.69B
Cap. Flow
+$306M
Cap. Flow %
1.86%
Top 10 Hldgs %
21%
Holding
1,770
New
129
Increased
754
Reduced
490
Closed
65

Top Buys

Rank Stock Value
1
FISV
Fiserv Inc
FISV
+$65.4M
2
P
Everpure Inc
P
+$35.3M
3
PYPL icon
PayPal
PYPL
+$30.4M
4
BA icon
Boeing
BA
+$28.3M
5
TWLO icon
Twilio
TWLO
+$24.2M

Top Sells

Rank Stock Value
1
TTE icon
TotalEnergies
TTE
+$155M
2
RHT
Red Hat Inc
RHT
+$73.4M
3
ULTI
Ultimate Software Group Inc
ULTI
+$70.6M
4
INGN icon
Inogen
INGN
+$25.8M
5
CELG
Celgene Corp
CELG
+$20.1M

Sector Composition

Rank Sector Weight
1 Technology 22.65%
2 Healthcare 17.38%
3 Financials 12.48%
4 Consumer Discretionary 9.87%
5 Industrials 9.37%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
SCHF icon
851
Schwab International Equity ETF
SCHF
$68.7B
$689K ﹤0.01%
43,982
+1,410
+3% +$21.5K
IYW icon
852
iShares US Technology ETF
IYW
$25.2B
$684K ﹤0.01%
14,364
-20,396
-59% -$907K
AMED
853
DELISTED
Amedisys
AMED
$680K ﹤0.01%
+5,517
New +$692K
MCY icon
854
Mercury Insurance
MCY
$6.07B
$680K ﹤0.01%
13,590
-925
-6% -$48K
OSW icon
855
OneSpaWorld
OSW
$2.66B
$674K ﹤0.01%
+49,330
New +$640K
CWI icon
856
State Street SPDR MSCI ACWI ex-US ETF
CWI
$2.85B
$666K ﹤0.01%
27,584
+14,757
+115% +$346K
HPQ icon
857
HP
HPQ
$27.5B
$664K ﹤0.01%
34,181
-7,182
-17% -$152K
GNMK
858
DELISTED
GenMark Diagnostics, Inc
GNMK
$661K ﹤0.01%
93,266
– –
REGN icon
859
Regeneron Pharmaceuticals
REGN
$80.8B
$660K ﹤0.01%
1,607
+432
+37% +$178K
FCX icon
860
Freeport-McMoran
FCX
$97.5B
$659K ﹤0.01%
51,134
-7,892
-13% -$95.5K
RPV icon
861
Invesco S&P 500 Pure Value ETF
RPV
$1.68B
$654K ﹤0.01%
10,375
-2,750
-21% -$173K
XLB icon
862
State Street Materials Select Sector SPDR ETF
XLB
$8.66B
$654K ﹤0.01%
23,566
-2,032
-8% -$54.8K
FTA icon
863
First Trust Large Cap Value AlphaDEX Fund
FTA
$1.4B
$653K ﹤0.01%
12,653
+1
+0% +$51
JWN
864
DELISTED
Nordstrom
JWN
$650K ﹤0.01%
14,654
-194,954
-93% -$8.89M
SCHV
865
Schwab US Large-Cap Value ETF
SCHV
$16.1B
$650K ﹤0.01%
35,601
+35,214
+9,099% +$625K
PAYC icon
866
Paycom
PAYC
$10B
$649K ﹤0.01%
3,434
+1,161
+51% +$189K
OLED icon
867
Universal Display
OLED
$4.19B
$648K ﹤0.01%
4,239
-575
-12% -$71.1K
SLRC icon
868
SLR Investment Corp
SLRC
$715M
$648K ﹤0.01%
31,086
– –
NI icon
869
NiSource
NI
$20.4B
$647K ﹤0.01%
22,569
-595
-3% -$16K
MFNC
870
DELISTED
Mackinac Financial Corporation
MFNC
$646K ﹤0.01%
41,064
– –
AGGY icon
871
WisdomTree Yield Enhanced US Aggregate Bond Fund
AGGY
$926M
$641K ﹤0.01%
12,869
+19
+0.1% +$929
KIDS icon
872
OrthoPediatrics
KIDS
$595M
$641K ﹤0.01%
14,490
+500
+4% +$19K
APTS
873
DELISTED
Preferred Apartment Communities, Inc.
APTS
$640K ﹤0.01%
43,182
-100
-0.2% -$1.57K
CBM
874
DELISTED
Cambrex Corporation
CBM
$640K ﹤0.01%
16,463
-150
-0.9% -$6.14K
EEFT icon
875
Euronet Worldwide
EEFT
$2.7B
$638K ﹤0.01%
+4,474
New +$558K
33 34
35
36 37

Similar funds

SAM
Storebrand Asset Management Lysaker, Norway $34.8B AUM 25.49% 1-Year Est. Return
Chevy Chase Trust
Chevy Chase Trust Bethesda, Maryland $34.7B AUM 29.45% 1-Year Est. Return
VIA
Vanguard Investments Australia Victoria, Australia $34.6B AUM
Alyeska Investment Group
Alyeska Investment Group Chicago, Illinois $35.4B AUM 33.54% 1-Year Est. Return
Pacer Advisors
Pacer Advisors Malvern, Pennsylvania $35.6B AUM 18.19% 1-Year Est. Return
Kayne Anderson Rudnick Investment Management
Kayne Anderson Rudnick Investment Management Los Angeles, California $34B AUM 6.31% 1-Year Est. Return
Viking Global Investors
Viking Global Investors Stamford, Connecticut $35.7B AUM 21.3% 1-Year Est. Return
First Manhattan
First Manhattan New York $36.1B AUM 11.5% 1-Year Est. Return

William Blair & Company's Q1 2019 Portfolio in Review

As of Q1 2019, William Blair & Company held 1,770 positions worth $16.4B, up 20% from $13.7B the previous quarter. Its ten largest holdings account for 21% of the portfolio.

William Blair & Company's Q1 2019 filing shows 129 new, 754 increased, 490 reduced and 65 closed positions. Its largest new stake was Western Midstream Partners: 147,267 shares worth $4.62M. The largest sale was TotalEnergies, an estimated $155M.

By sector, the portfolio is most concentrated in Technology at 23% of assets, up from 21% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q1 2019 buy was Western Midstream Partners: 147,267 shares worth $4.62M.
  • William Blair & Company added most to Fiserv Inc in Q1 2019, an estimated $65.4M increase.
  • William Blair & Company's biggest Q1 2019 reduction was TotalEnergies, cutting an estimated $155M.
  • William Blair & Company fully exited MB Financial Corp in Q1 2019, selling an estimated $7.72M.
  • William Blair & Company's ten largest holdings make up 21% of its $16.4B portfolio in Q1 2019.
  • William Blair & Company opened 129 new positions and closed 65 in Q1 2019.
  • William Blair & Company's portfolio value rose 20% quarter-over-quarter to $16.4B.

Based on William Blair & Company's 13F filing for Q1 2019, filed 14 May 2019.