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William Blair & Company

William Blair & Company Portfolio holdings

AUM $38.4B
1-Year Est. Return 25.71%
This Fund
S&P 500
This Quarter Est. Return
+6.81%
1 Year Est. Return
+25.71%
3 Year Est. Return
+88.7%
5 Year Est. Return
+104.53%
10 Year Est. Return
+665.86%
AUM
$17.5B
AUM Growth
+$1.09B
Cap. Flow
+$196M
Cap. Flow %
1.12%
Top 10 Hldgs %
22.04%
Holding
1,814
New
115
Increased
670
Reduced
633
Closed
80

Top Buys

Rank Stock Value
1
FISV
Fiserv Inc
FISV
+$41.9M
2
DLB icon
Dolby
DLB
+$23M
3
TDOC icon
Teladoc Health
TDOC
+$20.9M
4
CPRT icon
Copart
CPRT
+$20.8M
5
DXCM icon
DexCom
DXCM
+$16M

Top Sells

Rank Stock Value
1
RHT
Red Hat Inc
RHT
+$144M
2
ULTI
Ultimate Software Group Inc
ULTI
+$103M
3
GILD icon
Gilead Sciences
GILD
+$16.4M
4
BX icon
Blackstone
BX
+$12.4M
5
VEEV icon
Veeva Systems
VEEV
+$10.5M

Sector Composition

Rank Sector Weight
1 Technology 22.57%
2 Healthcare 17.89%
3 Financials 12.54%
4 Consumer Discretionary 10.12%
5 Industrials 9.64%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
HEZU icon
1526
iShares Currency Hedged MSCI Eurozone ETF
HEZU
$590M
$32K ﹤0.01%
1,057
+177
+20% +$5.34K
ISCG icon
1527
iShares Morningstar Small-Cap Growth ETF
ISCG
$1.02B
$32K ﹤0.01%
930
-480
-34% -$16K
MCHI icon
1528
iShares MSCI China ETF
MCHI
$6.21B
$32K ﹤0.01%
531
+118
+29% +$7.09K
SH icon
1529
ProShares Short S&P500
SH
$844M
$32K ﹤0.01%
300
-319
-52% -$34.8K
MDYV icon
1530
State Street SPDR S&P 400 Mid Cap Value ETF
MDYV
$2.88B
$31K ﹤0.01%
600
– –
RNTX
1531
Rein Therapeutics
RNTX
$68.9M
$31K ﹤0.01%
2,165
+1,072
+98% +$28.1K
IDEV icon
1532
iShares Core MSCI International Developed Markets ETF
IDEV
$32.7B
$30K ﹤0.01%
544
+7
+1% +$382
FDIQ
1533
Invesco Bloomberg Financial Data Providers ETF
FDIQ
$48.1M
$30K ﹤0.01%
594
-235
-28% -$11.9K
PSCH icon
1534
Invesco S&P SmallCap Health Care ETF
PSCH
$172M
$30K ﹤0.01%
759
– –
TDTF icon
1535
FlexShares iBoxx 5-Year Target Duration TIPS Index Fund
TDTF
$1.04B
$30K ﹤0.01%
1,189
– –
TOVX icon
1536
Theriva Biologics
TOVX
$11M
$30K ﹤0.01%
216
-10
-4% -$1.44K
SOCL icon
1537
Global X Social Media ETF
SOCL
$90.3M
$29K ﹤0.01%
911
-110
-11% -$3.58K
WLL
1538
DELISTED
Whiting Petroleum Corporation
WLL
$29K ﹤0.01%
20
– –
SMOG icon
1539
VanEck Low Carbon Energy ETF
SMOG
$136M
$28K ﹤0.01%
433
– –
ITEQ icon
1540
Amplify BlueStar Israel Technology ETF
ITEQ
$118M
$27K ﹤0.01%
700
– –
TLH icon
1541
iShares 10-20 Year Treasury Bond ETF
TLH
$10.8B
$27K ﹤0.01%
191
+19
+11% +$2.63K
CZA icon
1542
Invesco Zacks Mid-Cap ETF
CZA
$192M
$26K ﹤0.01%
370
– –
IBDQ
1543
DELISTED
iShares iBonds Dec 2025 Term Corporate ETF
IBDQ
$26K ﹤0.01%
1,000
– –
AIG.WS
1544
DELISTED
American International Group, Inc.
AIG.WS
$26K ﹤0.01%
2,101
+1,498
+248% +$14.9K
BOND icon
1545
PIMCO Active Bond Exchange-Traded Fund
BOND
$8.47B
$25K ﹤0.01%
231
– –
EWS icon
1546
iShares MSCI Singapore ETF
EWS
$1.16B
$25K ﹤0.01%
1,020
– –
ON icon
1547
ON Semiconductor
ON
$32.4B
$25K ﹤0.01%
1,254
-367
-23% -$7.58K
PFFD icon
1548
Global X US Preferred ETF
PFFD
$2.17B
$25K ﹤0.01%
1,000
– –
PZA icon
1549
Invesco National AMT-Free Municipal Bond ETF
PZA
$4.27B
$25K ﹤0.01%
966
– –
RXI icon
1550
iShares Global Consumer Discretionary ETF
RXI
$274M
$25K ﹤0.01%
215
– –
60 61
62
63 64

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William Blair & Company's Q2 2019 Portfolio in Review

As of Q2 2019, William Blair & Company held 1,814 positions worth $17.5B, up 6.6% from $16.4B the previous quarter. Its ten largest holdings account for 22% of the portfolio.

William Blair & Company's Q2 2019 filing shows 115 new, 670 increased, 633 reduced and 80 closed positions. Its largest new stake was Q2 Holdings: 213,468 shares worth $16.3M. The largest sale was Red Hat Inc, an estimated $144M.

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

  • William Blair & Company's largest Q2 2019 buy was Q2 Holdings: 213,468 shares worth $16.3M.
  • William Blair & Company added most to Fiserv Inc in Q2 2019, an estimated $41.9M increase.
  • William Blair & Company's biggest Q2 2019 reduction was Gilead Sciences, cutting an estimated $16.4M.
  • William Blair & Company fully exited Red Hat Inc in Q2 2019, selling an estimated $144M.
  • William Blair & Company's ten largest holdings make up 22% of its $17.5B portfolio in Q2 2019.
  • William Blair & Company opened 115 new positions and closed 80 in Q2 2019.
  • William Blair & Company's portfolio value rose 6.6% quarter-over-quarter to $17.5B.

Based on William Blair & Company's 13F filing for Q2 2019, filed 13 Aug 2019.