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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
ARKK icon
1576
ARK Innovation ETF
ARKK
$6.01B
$14K ﹤0.01%
290
-1
-0.3% -$44
DVYE icon
1577
iShares Emerging Markets Dividend ETF
DVYE
$1.22B
$14K ﹤0.01%
358
-2,192
-86% -$88.7K
ECH icon
1578
iShares MSCI Chile ETF
ECH
$1.06B
$14K ﹤0.01%
319
– –
PPH icon
1579
VanEck Pharmaceutical ETF
PPH
$934M
$14K ﹤0.01%
224
+179
+398% +$10.6K
IBMJ
1580
DELISTED
iShares iBonds Dec 2021 Term Muni Bond ETF
IBMJ
$14K ﹤0.01%
547
– –
GM.WS.B
1581
DELISTED
General Motors Company
GM.WS.B
$13K ﹤0.01%
692
-133
-16% -$2.69K
EMCG
1582
DELISTED
WisdomTree Emerging Markets Consumer Growth Fund
EMCG
$13K ﹤0.01%
600
– –
EWD icon
1583
iShares MSCI Sweden ETF
EWD
$592M
$12K ﹤0.01%
387
– –
FTXO icon
1584
First Trust Nasdaq Bank ETF
FTXO
$311M
$12K ﹤0.01%
500
– –
IWY icon
1585
iShares Russell Top 200 Growth ETF
IWY
$16.5B
$12K ﹤0.01%
144
– –
RWR icon
1586
State Street SPDR Dow Jones REIT ETF
RWR
$1.96B
$12K ﹤0.01%
119
– –
RZG icon
1587
Invesco S&P SmallCap 600 Pure Growth ETF
RZG
$141M
$12K ﹤0.01%
330
– –
EWSC
1588
DELISTED
Invesco S&P SmallCap 600 Equal Weight ETF
EWSC
$12K ﹤0.01%
220
– –
RSX
1589
DELISTED
VanEck Russia ETF
RSX
$12K ﹤0.01%
529
– –
NEE.PRR
1590
DELISTED
NextEra Energy, Inc.
NEE.PRR
$12K ﹤0.01%
200
– –
CUT icon
1591
Invesco MSCI Global Timber ETF
CUT
$33.2M
$11K ﹤0.01%
400
– –
ELD icon
1592
WisdomTree Emerging Markets Local Debt Fund
ELD
$142M
$11K ﹤0.01%
326
– –
RGLS
1593
DELISTED
Regulus Therapeutics
RGLS
$10K ﹤0.01%
+1,007
New +$11K
VIOV icon
1594
Vanguard S&P Small-Cap 600 Value ETF
VIOV
$1.88B
$10K ﹤0.01%
158
+24
+18% +$1.53K
VIA
1595
DELISTED
Viacom Inc. Class A
VIA
$10K ﹤0.01%
+300
New +$10K
CYB
1596
DELISTED
WisdomTree Chinese Yuan Strategy Fund
CYB
$10K ﹤0.01%
400
– –
NORW
1597
DELISTED
Global X MSCI Norway ETF
NORW
$10K ﹤0.01%
796
+29
+4% +$361
FAS icon
1598
Direxion Daily Financial Bull 3x ETF
FAS
$2.47B
$9K ﹤0.01%
150
– –
IGE icon
1599
iShares North American Natural Resources ETF
IGE
$753M
$9K ﹤0.01%
283
– –
IYG icon
1600
iShares US Financial Services ETF
IYG
$2.21B
$9K ﹤0.01%
222
– –
62 63
64
65 66

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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.