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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
+512.03%
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
WEX icon
51
WEX
WEX
$6.38B
$90.1M 0.46%
430,261
+26,861
+7% +$5.39M
UNP icon
52
Union Pacific
UNP
$173B
$88.8M 0.46%
491,248
+660
+0.1% +$113K
UNH icon
53
UnitedHealth
UNH
$377B
$88.6M 0.46%
301,490
-10,035
-3% -$2.63M
APH icon
54
Amphenol
APH
$201B
$86.5M 0.44%
3,195,688
-28,132
-0.9% -$718K
PGR icon
55
Progressive
PGR
$122B
$86.3M 0.44%
1,192,079
+56,663
+5% +$4.08M
PLNT icon
56
Planet Fitness
PLNT
$4.45B
$84.2M 0.43%
1,127,707
+70,324
+7% +$4.74M
BA icon
57
Boeing
BA
$185B
$83.9M 0.43%
257,619
+4,796
+2% +$1.7M
GS icon
58
Goldman Sachs
GS
$303B
$80.8M 0.42%
351,413
-18,718
-5% -$4.06M
AME icon
59
Ametek
AME
$55.9B
$79.9M 0.41%
801,245
+967
+0.1% +$91.6K
BABA icon
60
Alibaba
BABA
$305B
$79.8M 0.41%
376,335
+53,593
+17% +$10.1M
ABBV icon
61
AbbVie
ABBV
$433B
$79.3M 0.41%
895,214
+69,365
+8% +$5.76M
NTRS icon
62
Northern Trust
NTRS
$33.3B
$78.7M 0.4%
740,801
+2,238
+0.3% +$229K
WMT icon
63
Walmart Inc
WMT
$881B
$78.6M 0.4%
1,983,690
+186,567
+10% +$7.41M
DOCU
64
DocuSign
DOCU
$10.5B
$77.2M 0.4%
1,041,767
-31,147
-3% -$2.14M
IVV icon
65
iShares Core S&P 500 ETF
IVV
$884B
$74M 0.38%
228,861
+15,596
+7% +$4.83M
PCTY icon
66
Paylocity
PCTY
$7.48B
$73.9M 0.38%
611,293
+32,152
+6% +$3.52M
EW icon
67
Edwards Lifesciences
EW
$51.1B
$71.1M 0.37%
914,007
-4,335
-0.5% -$339K
CVX icon
68
Chevron
CVX
$385B
$66.7M 0.34%
553,796
+48,605
+10% +$5.72M
AXP icon
69
American Express
AXP
$233B
$66.7M 0.34%
535,835
+155,728
+41% +$18.6M
META icon
70
Meta Platforms (Facebook)
META
$1.5T
$66.6M 0.34%
324,399
+3,178
+1% +$616K
EOG icon
71
EOG Resources
EOG
$77.6B
$65.1M 0.33%
776,877
-284,717
-27% -$20.9M
EFA icon
72
iShares MSCI EAFE ETF
EFA
$78.4B
$64M 0.33%
922,381
-62,264
-6% -$4.21M
MKC icon
73
McCormick & Company Non-Voting
MKC
$13.9B
$62.5M 0.32%
736,054
+10,168
+1% +$841K
CHKP icon
74
Check Point Software Technologies
CHKP
$12.6B
$62M 0.32%
558,797
-20,241
-3% -$2.27M
MCD icon
75
McDonald's
MCD
$188B
$61M 0.31%
308,817
-46,361
-13% -$9.2M
1 2
3
4 5

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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.