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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
IBDQ
1526
DELISTED
iShares iBonds Dec 2025 Term Corporate ETF
IBDQ
$25K ﹤0.01%
1,000
– –
NFRA icon
1527
FlexShares STOXX Global Broad Infrastructure Index Fund
NFRA
$3.02B
$25K ﹤0.01%
500
– –
PZA icon
1528
Invesco National AMT-Free Municipal Bond ETF
PZA
$4.26B
$25K ﹤0.01%
966
– –
BSJL
1529
DELISTED
Invesco BulletShares 2021 High Yield Corporate Bond ETF
BSJL
$25K ﹤0.01%
1,000
– –
EUFN icon
1530
iShares MSCI Europe Financials ETF
EUFN
$4.29B
$24K ﹤0.01%
1,300
– –
EWS icon
1531
iShares MSCI Singapore ETF
EWS
$1.08B
$24K ﹤0.01%
1,020
– –
PFFD icon
1532
Global X US Preferred ETF
PFFD
$2.17B
$24K ﹤0.01%
1,000
– –
RXI icon
1533
iShares Global Consumer Discretionary ETF
RXI
$278M
$24K ﹤0.01%
+215
New +$23.5K
SCHR
1534
Schwab Intermediately-Term US Treasury ETF
SCHR
$13.3B
$24K ﹤0.01%
874
+24
+3% +$637
TLH icon
1535
iShares 10-20 Year Treasury Bond ETF
TLH
$10.9B
$24K ﹤0.01%
+172
New +$23K
EEMS icon
1536
iShares MSCI Emerging Markets Small-Cap ETF
EEMS
$373M
$23K ﹤0.01%
500
– –
FXN icon
1537
First Trust Energy AlphaDEX Fund
FXN
$368M
$23K ﹤0.01%
819
-2,263
-73% -$29.1K
LIT icon
1538
Global X Lithium & Battery Tech ETF
LIT
$1.6B
$23K ﹤0.01%
808
+8
+1% +$228
MOO icon
1539
VanEck Agribusiness ETF
MOO
$969M
$23K ﹤0.01%
362
+32
+10% +$1.96K
XPH icon
1540
State Street SPDR S&P Pharmaceuticals ETF
XPH
$508M
$23K ﹤0.01%
532
– –
IHE icon
1541
iShares US Pharmaceuticals ETF
IHE
$1.64B
$22K ﹤0.01%
420
– –
PBE icon
1542
Invesco Biotechnology & Genome ETF
PBE
$292M
$22K ﹤0.01%
400
– –
ARC
1543
DELISTED
ARC Document Solutions, Inc.
ARC
$22K ﹤0.01%
10,000
– –
EMGF icon
1544
iShares Emerging Markets Equity Factor ETF
EMGF
$1.87B
$21K ﹤0.01%
485
– –
EZA icon
1545
iShares MSCI South Africa ETF
EZA
$592M
$21K ﹤0.01%
296
– –
FXU icon
1546
First Trust Utilities AlphaDEX Fund
FXU
$825M
$21K ﹤0.01%
751
+3
+0.4% +$83
ISCV icon
1547
iShares Morningstar Small-Cap Value ETF
ISCV
$706M
$21K ﹤0.01%
450
-30
-6% -$1.38K
IYM icon
1548
iShares US Basic Materials ETF
IYM
$1.25B
$21K ﹤0.01%
221
-191
-46% -$17.1K
XRLV
1549
DELISTED
Invesco S&P 500 ex-Rate Sensitive Low Volatility ETF
XRLV
$21K ﹤0.01%
565
+3
+0.5% +$105
SLY
1550
DELISTED
SPDR S&P 600 Small Cap ETF (based on S&P SmallCap 600 Index--symbol SML)
SLY
$21K ﹤0.01%
320
– –
60 61
62
63 64

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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.