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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
+9.1%
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
$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
AVAV icon
876
AeroVironment
AVAV
$9.81B
$701K ﹤0.01%
11,350
-211
-2% -$12.6K
CIGI icon
877
Colliers International
CIGI
$5.15B
$697K ﹤0.01%
8,942
– –
GEL icon
878
Genesis Energy
GEL
$1.94B
$697K ﹤0.01%
34,034
+489
+1% +$9.85K
ANSS
879
DELISTED
Ansys
ANSS
$694K ﹤0.01%
2,697
-2,599
-49% -$615K
XLC icon
880
State Street Communication Services Select Sector SPDR ETF
XLC
$22.3B
$691K ﹤0.01%
12,889
+3,096
+32% +$159K
GMED icon
881
Globus Medical
GMED
$11.5B
$689K ﹤0.01%
11,694
+214
+2% +$11.6K
BMO icon
882
Bank of Montreal
BMO
$129B
$685K ﹤0.01%
8,841
+587
+7% +$44.2K
MOAT icon
883
VanEck Morningstar Wide Moat ETF
MOAT
$12.3B
$684K ﹤0.01%
12,492
-335
-3% -$17.7K
IGV icon
884
iShares Expanded Tech-Software Sector ETF
IGV
$14.8B
$682K ﹤0.01%
14,640
+14,620
+73,100% +$648K
SCHX icon
885
Schwab US Large- Cap ETF
SCHX
$74.5B
$679K ﹤0.01%
53,034
+41,286
+351% +$506K
AGGY icon
886
WisdomTree Yield Enhanced US Aggregate Bond Fund
AGGY
$923M
$676K ﹤0.01%
12,930
+20
+0.2% +$1.04K
USO icon
887
United States Oil Fund
USO
$1.8B
$674K ﹤0.01%
6,581
+62
+1% +$5.89K
EMLP icon
888
First Trust North American Energy Infrastructure Fund
EMLP
$4.15B
$672K ﹤0.01%
26,345
-402
-2% -$10K
CY
889
DELISTED
Cypress Semiconductor
CY
$672K ﹤0.01%
28,800
– –
HUN icon
890
Huntsman Corp
HUN
$1.78B
$668K ﹤0.01%
+27,652
New +$641K
EXG icon
891
Eaton Vance Tax-Managed Global Diversified Equity Income Fund
EXG
$3.09B
$667K ﹤0.01%
75,944
+2,500
+3% +$21.3K
PE
892
DELISTED
PARSLEY ENERGY INC
PE
$666K ﹤0.01%
35,244
+11,560
+49% +$191K
KLAC icon
893
KLA
KLAC
$272B
$663K ﹤0.01%
37,190
+14,950
+67% +$251K
LH icon
894
Labcorp
LH
$26.2B
$663K ﹤0.01%
4,565
-434
-9% -$62.7K
LYB icon
895
LyondellBasell Industries
LYB
$20.3B
$661K ﹤0.01%
7,001
-9,207
-57% -$844K
TME icon
896
Tencent Music
TME
$13.9B
$658K ﹤0.01%
+56,048
New +$720K
MFNC
897
DELISTED
Mackinac Financial Corporation
MFNC
$657K ﹤0.01%
37,608
-3,456
-8% -$54.9K
AG icon
898
First Majestic Silver
AG
$9.44B
$654K ﹤0.01%
53,329
+225
+0.4% +$2.37K
HPQ icon
899
HP
HPQ
$26.8B
$654K ﹤0.01%
31,832
-7,035
-18% -$133K
HEEM icon
900
iShares Currency Hedged MSCI Emerging Markets
HEEM
$292M
$651K ﹤0.01%
24,574
-3,095
-11% -$79.5K
34 35
36
37 38

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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.