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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
MEDP icon
726
Medpace
MEDP
$16.3B
$1.2M 0.01%
14,312
+802
+6% +$62.1K
SYF icon
727
Synchrony
SYF
$25.5B
$1.19M 0.01%
33,137
+26,746
+418% +$957K
IJT icon
728
iShares S&P Small-Cap 600 Growth ETF
IJT
$8.42B
$1.19M 0.01%
12,334
+196
+2% +$18.1K
SNAP icon
729
Snap
SNAP
$9.01B
$1.18M 0.01%
72,321
+21,700
+43% +$319K
WBD icon
730
Warner Bros
WBD
$66.9B
$1.18M 0.01%
36,027
+13,718
+61% +$413K
PTON icon
731
Peloton Interactive
PTON
$2.42B
$1.18M 0.01%
41,460
+32,925
+386% +$887K
IYR icon
732
iShares US Real Estate ETF
IYR
$4.64B
$1.17M 0.01%
12,603
-10,212
-45% -$947K
HXL icon
733
Hexcel
HXL
$7.77B
$1.17M 0.01%
15,949
+3,218
+25% +$247K
UMH
734
UMH Properties
UMH
$1.36B
$1.16M 0.01%
73,991
+1,836
+3% +$27.7K
SUSA icon
735
iShares ESG Optimized MSCI USA ETF
SUSA
$4.17B
$1.16M 0.01%
17,338
+170
+1% +$10.9K
LOPE icon
736
Grand Canyon Education
LOPE
$3.96B
$1.16M 0.01%
12,088
+9,789
+426% +$903K
CHTR icon
737
Charter Communications
CHTR
$18.3B
$1.15M 0.01%
2,380
+151
+7% +$69.5K
NXPI icon
738
NXP Semiconductors
NXPI
$60.1B
$1.15M 0.01%
9,037
+5,179
+134% +$601K
TRGP icon
739
Targa Resources
TRGP
$55.5B
$1.14M 0.01%
28,018
+5,603
+25% +$217K
NOMD icon
740
Nomad Foods
NOMD
$1.66B
$1.14M 0.01%
50,985
-28,548
-36% -$582K
VTHR icon
741
Vanguard Russell 3000 ETF
VTHR
$4.83B
$1.14M 0.01%
7,768
– –
FSV icon
742
FirstService
FSV
$6.3B
$1.13M 0.01%
12,162
+4,270
+54% +$402K
IVOG icon
743
Vanguard S&P Mid-Cap 400 Growth ETF
IVOG
$1.7B
$1.13M 0.01%
15,386
+2,288
+17% +$163K
EPI icon
744
WisdomTree India Earnings Fund ETF
EPI
$2.06B
$1.13M 0.01%
45,342
+450
+1% +$10.9K
OPRX icon
745
OptimizeRx
OPRX
$133M
$1.13M 0.01%
109,945
+27,055
+33% +$307K
RPM icon
746
RPM International
RPM
$14.9B
$1.13M 0.01%
14,699
-7,026
-32% -$510K
WTW icon
747
Willis Towers Watson
WTW
$32B
$1.11M 0.01%
5,514
-96
-2% -$18.4K
CINF icon
748
Cincinnati Financial
CINF
$27.2B
$1.11M 0.01%
10,554
+50
+0.5% +$5.47K
MMI icon
749
Marcus & Millichap
MMI
$1.19B
$1.11M 0.01%
29,690
-7,149
-19% -$257K
NYT icon
750
New York Times
NYT
$10.3B
$1.1M 0.01%
34,340
+28
+0.1% +$870
28 29
30
31 32

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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.