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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
STAG icon
876
STAG Industrial
STAG
$7.19B
$637K ﹤0.01%
21,500
+1,300
+6% +$35.9K
COMT icon
877
iShares GSCI Commodity Dynamic Roll Strategy ETF
COMT
$1.18B
$634K ﹤0.01%
19,186
-1,834
-9% -$59.6K
IYH icon
878
iShares US Healthcare ETF
IYH
$3.54B
$633K ﹤0.01%
16,340
-10,730
-40% -$408K
USO icon
879
United States Oil Fund
USO
$1.84B
$633K ﹤0.01%
6,331
-428
-6% -$39.4K
VIS icon
880
Vanguard Industrials ETF
VIS
$8.39B
$632K ﹤0.01%
4,479
-2,509
-36% -$339K
EXPD icon
881
Expeditors International
EXPD
$23.2B
$629K ﹤0.01%
8,291
+592
+8% +$42.7K
ATRO icon
882
Astronics
ATRO
$3.84B
$628K ﹤0.01%
+18,814
New +$501K
NWG icon
883
NatWest
NWG
$76.4B
$628K ﹤0.01%
89,474
– –
DWM icon
884
WisdomTree International Equity Fund
DWM
$697M
$626K ﹤0.01%
12,355
+2,026
+20% +$101K
DCP
885
DELISTED
DCP Midstream, LP
DCP
$625K ﹤0.01%
18,920
– –
VCRA
886
DELISTED
VOCERA COMMUNICATIONS, INC.
VCRA
$625K ﹤0.01%
+19,752
New +$700K
TOTL icon
887
State Street DoubleLine Total Return Tactical ETF
TOTL
$4.03B
$623K ﹤0.01%
12,887
+7,679
+147% +$367K
COR icon
888
Cencora
COR
$61.2B
$622K ﹤0.01%
7,823
+2,363
+43% +$190K
VMW
889
DELISTED
VMware, Inc
VMW
$621K ﹤0.01%
3,441
-3,101
-47% -$505K
AKBA icon
890
Akebia Therapeutics
AKBA
$252M
$618K ﹤0.01%
75,401
+5,826
+8% +$40K
LW icon
891
Lamb Weston
LW
$7.19B
$617K ﹤0.01%
8,227
+733
+10% +$51.9K
EXG icon
892
Eaton Vance Tax-Managed Global Diversified Equity Income Fund
EXG
$3.06B
$616K ﹤0.01%
75,653
+11,209
+17% +$88.6K
PS
893
DELISTED
Pluralsight, Inc. Class A Common Stock
PS
$616K ﹤0.01%
+19,400
New +$574K
VONV icon
894
Vanguard Russell 1000 Value ETF
VONV
$21.2B
$611K ﹤0.01%
11,304
– –
LRGF icon
895
iShares US Equity Factor ETF
LRGF
$3.71B
$610K ﹤0.01%
+19,669
New +$595K
DG icon
896
Dollar General
DG
$27.9B
$604K ﹤0.01%
5,066
+2,067
+69% +$240K
LUV icon
897
Southwest Airlines
LUV
$23B
$604K ﹤0.01%
11,644
+1,904
+20% +$100K
SIRI icon
898
SiriusXM
SIRI
$10.1B
$603K ﹤0.01%
10,635
+4,567
+75% +$272K
CIGI icon
899
Colliers International
CIGI
$5.19B
$602K ﹤0.01%
9,018
– –
JEF icon
900
Jefferies Financial Group
JEF
$13.1B
$602K ﹤0.01%
30,532
-1,231
-4% -$21.7K
34 35
36
37 38

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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.