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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
+9.1%
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
$19.5B
AUM Growth
+$2.1B
Cap. Flow
+$465M
Cap. Flow %
2.39%
Top 10 Hldgs %
22.3%
Holding
1,847
New
125
Increased
679
Reduced
598
Closed
120

Top Buys

Rank Stock Value
1
ANET icon
Arista Networks
ANET
+$24M
2
DIS icon
Walt Disney
DIS
+$22.5M
3
PYPL icon
PayPal
PYPL
+$21.1M
4
AXP icon
American Express
AXP
+$18.6M
5
NOW icon
ServiceNow
NOW
+$15.5M

Top Sells

Rank Stock Value
1
CELG
Celgene Corp
CELG
+$25M
2
ULTA icon
Ulta Beauty
ULTA
+$21.8M
3
EOG icon
EOG Resources
EOG
+$20.9M
4
ABMD
Abiomed Inc
ABMD
+$16.3M
5
GRUB
Just Eat Takeaway.com N.V. American Depositary Shares
GRUB
+$11.2M

Sector Composition

Rank Sector Weight
1 Technology 23.46%
2 Healthcare 17.35%
3 Financials 13.04%
4 Consumer Discretionary 9.94%
5 Industrials 9.53%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
IYM icon
1526
iShares US Basic Materials ETF
IYM
$1.23B
$24K ﹤0.01%
240
– –
XPH icon
1527
State Street SPDR S&P Pharmaceuticals ETF
XPH
$506M
$24K ﹤0.01%
532
– –
EEMS icon
1528
iShares MSCI Emerging Markets Small-Cap ETF
EEMS
$371M
$23K ﹤0.01%
500
– –
IQLT icon
1529
iShares MSCI Intl Quality Factor ETF
IQLT
$14.1B
$23K ﹤0.01%
723
+189
+35% +$5.85K
JHML icon
1530
John Hancock Multifactor Large Cap ETF
JHML
$1.19B
$23K ﹤0.01%
+557
New +$22.1K
NGD
1531
DELISTED
New Gold Inc
NGD
$23K ﹤0.01%
26,185
+10,000
+62% +$9.05K
SCHR
1532
Schwab Intermediately-Term US Treasury ETF
SCHR
$13.3B
$23K ﹤0.01%
850
-24
-3% -$663
SLVP icon
1533
iShares MSCI Global Silver and Metals Miners ETF
SLVP
$885M
$23K ﹤0.01%
2,037
-1,713
-46% -$17.3K
SLY
1534
DELISTED
SPDR S&P 600 Small Cap ETF (based on S&P SmallCap 600 Index--symbol SML)
SLY
$23K ﹤0.01%
320
– –
FCOM icon
1535
Fidelity MSCI Communication Services Index ETF
FCOM
$1.8B
$22K ﹤0.01%
+628
New +$21.6K
GNR icon
1536
State Street SPDR S&P Global Natural Resources ETF
GNR
$4.86B
$22K ﹤0.01%
481
-238
-33% -$10.6K
IHE icon
1537
iShares US Pharmaceuticals ETF
IHE
$1.64B
$22K ﹤0.01%
420
– –
LIT icon
1538
Global X Lithium & Battery Tech ETF
LIT
$1.56B
$22K ﹤0.01%
800
– –
OPK icon
1539
Opko Health
OPK
$985M
$22K ﹤0.01%
15,000
– –
PBE icon
1540
Invesco Biotechnology & Genome ETF
PBE
$287M
$22K ﹤0.01%
400
– –
SMLV icon
1541
State Street SPDR US Small Cap Low Volatility Index ETF
SMLV
$261M
$22K ﹤0.01%
224
– –
SPEU icon
1542
State Street SPDR Portfolio Europe ETF
SPEU
$739M
$22K ﹤0.01%
613
+328
+115% +$11.4K
TLH icon
1543
iShares 10-20 Year Treasury Bond ETF
TLH
$10.9B
$21K ﹤0.01%
147
-10
-6% -$1.47K
LMRKN
1544
DELISTED
Landmark Infrastructure Partners LP 7% Series C Fltg/Fxd Perpetual Conv Preferred Stock
LMRKN
$21K ﹤0.01%
+800
New +$20.9K
ERUS
1545
DELISTED
iShares MSCI Russia ETF
ERUS
$21K ﹤0.01%
487
– –
IBDM
1546
DELISTED
iShares iBonds Dec 2021 Term Corporate ETF
IBDM
$21K ﹤0.01%
825
– –
EWS icon
1547
iShares MSCI Singapore ETF
EWS
$1.06B
$20K ﹤0.01%
810
– –
PCRX icon
1548
Pacira BioSciences
PCRX
$1.02B
$20K ﹤0.01%
+450
New +$19.1K
PUI icon
1549
Invesco Dorsey Wright Utilities Momentum ETF
PUI
$54.2M
$20K ﹤0.01%
+586
New +$19.9K
IBDL
1550
DELISTED
iShares iBonds Dec 2020 Term Corporate ETF
IBDL
$20K ﹤0.01%
800
– –
60 61
62
63 64

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William Blair & Company's Q4 2019 Portfolio in Review

As of Q4 2019, William Blair & Company held 1,847 positions worth $19.5B, up 12% from $17.4B the previous quarter. Its ten largest holdings account for 22% of the portfolio.

William Blair & Company's Q4 2019 filing shows 125 new, 679 increased, 598 reduced and 120 closed positions. Its largest new stake was Dynatrace: 165,602 shares worth $4.19M. The largest sale was Celgene Corp, an estimated $25M.

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

  • William Blair & Company's largest Q4 2019 buy was Dynatrace: 165,602 shares worth $4.19M.
  • William Blair & Company added most to Arista Networks in Q4 2019, an estimated $24M increase.
  • William Blair & Company's biggest Q4 2019 reduction was Ulta Beauty, cutting an estimated $21.8M.
  • William Blair & Company fully exited Celgene Corp in Q4 2019, selling an estimated $25M.
  • William Blair & Company's ten largest holdings make up 22% of its $19.5B portfolio in Q4 2019.
  • William Blair & Company opened 125 new positions and closed 120 in Q4 2019.
  • William Blair & Company's portfolio value rose 12% quarter-over-quarter to $19.5B.

Based on William Blair & Company's 13F filing for Q4 2019, filed 13 Feb 2020.