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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
DDG
1501
DELISTED
Proshares Short Oil & Gas
DDG
$36K ﹤0.01%
1,520
– –
DTUS
1502
DELISTED
iPath US Treasury 2-year Bear ETN
DTUS
$35K ﹤0.01%
1,300
– –
IEO icon
1503
iShares US Oil & Gas Exploration & Production ETF
IEO
$545M
$34K ﹤0.01%
585
-208
-26% -$12K
FPX icon
1504
First Trust US Equity Opportunities ETF
FPX
$1.49B
$33K ﹤0.01%
447
– –
ON icon
1505
ON Semiconductor
ON
$18.6B
$33K ﹤0.01%
1,621
+440
+37% +$9.08K
SGDJ icon
1506
Sprott Junior Gold Miners ETF
SGDJ
$310M
$33K ﹤0.01%
1,200
– –
SOCL icon
1507
Global X Social Media ETF
SOCL
$92.2M
$33K ﹤0.01%
1,021
+426
+72% +$13.1K
BATRK icon
1508
Atlanta Braves Holdings Series B
BATRK
$3.13B
$32K ﹤0.01%
1,153
– –
FNDA icon
1509
Schwab Fundamental US Small Company Index ETF
FNDA
$9.27B
$30K ﹤0.01%
1,604
-780
-33% -$14.3K
HYD icon
1510
VanEck High Yield Muni ETF
HYD
$4.44B
$30K ﹤0.01%
482
+4
+0.8% +$246
MDYV icon
1511
State Street SPDR S&P 400 Mid Cap Value ETF
MDYV
$2.81B
$30K ﹤0.01%
600
– –
TDTF icon
1512
FlexShares iBoxx 5-Year Target Duration TIPS Index Fund
TDTF
$1.04B
$30K ﹤0.01%
1,189
– –
ICLN icon
1513
iShares Global Clean Energy ETF
ICLN
$2.37B
$29K ﹤0.01%
3,000
– –
IDEV icon
1514
iShares Core MSCI International Developed Markets ETF
IDEV
$32.3B
$29K ﹤0.01%
537
-28
-5% -$1.47K
PSCH icon
1515
Invesco S&P SmallCap Health Care ETF
PSCH
$165M
$29K ﹤0.01%
759
– –
INOD icon
1516
Innodata
INOD
$2.14B
$28K ﹤0.01%
22,000
– –
EWA icon
1517
iShares MSCI Australia ETF
EWA
$1.44B
$27K ﹤0.01%
1,271
– –
HEZU icon
1518
iShares Currency Hedged MSCI Eurozone ETF
HEZU
$584M
$27K ﹤0.01%
880
– –
SMOG icon
1519
VanEck Low Carbon Energy ETF
SMOG
$132M
$27K ﹤0.01%
433
+318
+277% +$19.4K
IPAY icon
1520
Amplify Mobile Payments ETF
IPAY
$185M
$26K ﹤0.01%
+600
New +$23.9K
ITEQ icon
1521
Amplify BlueStar Israel Technology ETF
ITEQ
$116M
$26K ﹤0.01%
700
– –
MCHI icon
1522
iShares MSCI China ETF
MCHI
$6.31B
$26K ﹤0.01%
413
+150
+57% +$8.85K
WFT
1523
DELISTED
Weatherford International plc
WFT
$26K ﹤0.01%
37,484
+4,326
+13% +$2.99K
BOND icon
1524
PIMCO Active Bond Exchange-Traded Fund
BOND
$8.45B
$25K ﹤0.01%
231
– –
CZA icon
1525
Invesco Zacks Mid-Cap ETF
CZA
$192M
$25K ﹤0.01%
370
– –
59 60
61
62 63

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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.