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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
LSXMA
1301
DELISTED
Liberty Media Corporation Series A Liberty SiriusXM Common Stock
LSXMA
$194K ﹤0.01%
5,564
-82
-1% -$2.71K
IWX icon
1302
iShares Russell Top 200 Value ETF
IWX
$4.07B
$193K ﹤0.01%
3,305
– –
VTWG icon
1303
Vanguard Russell 2000 Growth ETF
VTWG
$1.55B
$191K ﹤0.01%
1,226
– –
ATCO
1304
DELISTED
Atlas Corp.
ATCO
$191K ﹤0.01%
13,442
+66
+0.5% +$788
ING icon
1305
ING
ING
$102B
$190K ﹤0.01%
15,765
-5,081
-24% -$58.2K
DDG
1306
DELISTED
Proshares Short Oil & Gas
DDG
$190K ﹤0.01%
7,720
– –
ARDX icon
1307
Ardelyx
ARDX
$988M
$188K ﹤0.01%
25,000
-3,000
-11% -$18.2K
IXN icon
1308
iShares Global Tech ETF
IXN
$8.83B
$187K ﹤0.01%
5,340
– –
IYE icon
1309
iShares US Energy ETF
IYE
$1.71B
$187K ﹤0.01%
5,821
+4
+0.1% +$126
VIGI icon
1310
Vanguard International Dividend Appreciation ETF
VIGI
$9.3B
$184K ﹤0.01%
2,550
-75
-3% -$5.19K
OUSA icon
1311
ALPS O'Shares U.S. Quality Dividend ETF
OUSA
$764M
$183K ﹤0.01%
4,992
+1
+0% +$35
HEDJ icon
1312
WisdomTree Europe Hedged Equity Fund
HEDJ
$1.87B
$181K ﹤0.01%
5,136
-2,400
-32% -$82.7K
NERV icon
1313
Minerva Neurosciences
NERV
$199M
$178K ﹤0.01%
3,138
+194
+7% +$8.55K
SKYY icon
1314
First Trust Cloud Computing ETF
SKYY
$3.12B
$176K ﹤0.01%
2,915
-542
-16% -$31.7K
VOX icon
1315
Vanguard Communication Services ETF
VOX
$5.76B
$176K ﹤0.01%
1,871
-49
-3% -$4.43K
DDM icon
1316
ProShares Ultra Dow30
DDM
$545M
$167K ﹤0.01%
6,000
– –
OPPE
1317
WisdomTree European Opportunities Fund
OPPE
$295M
$164K ﹤0.01%
5,000
– –
ARLP icon
1318
Alliance Resource Partners
ARLP
$3.17B
$163K ﹤0.01%
15,084
– –
BYSI icon
1319
BeyondSpring
BYSI
$35.8M
$163K ﹤0.01%
+10,500
New +$156K
IMTB icon
1320
iShares Core 5-10 Year USD Bond ETF
IMTB
$275M
$159K ﹤0.01%
3,145
– –
DJP icon
1321
iPath Bloomberg Commodity Index Total Return ETN due 12 June 2036
DJP
$794M
$158K ﹤0.01%
+6,905
New +$153K
IDU icon
1322
iShares US Utilities ETF
IDU
$1.4B
$158K ﹤0.01%
1,950
-100
-5% -$7.97K
LAKE icon
1323
Lakeland Industries
LAKE
$119M
$157K ﹤0.01%
+14,510
New +$156K
PSEC icon
1324
Prospect Capital
PSEC
$1.17B
$157K ﹤0.01%
24,395
-905
-4% -$5.89K
ICLN icon
1325
iShares Global Clean Energy ETF
ICLN
$2.4B
$155K ﹤0.01%
13,162
+8,204
+165% +$90.3K
51 52
53
54 55

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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.