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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
WDAY icon
26
Workday
WDAY
$39.6B
$150M 0.77%
914,786
+42,826
+5% +$7.11M
TYL icon
27
Tyler Technologies
TYL
$12.7B
$144M 0.74%
481,186
+13,277
+3% +$3.7M
FAST icon
28
Fastenal
FAST
$54.7B
$142M 0.73%
7,699,206
+189,122
+3% +$3.38M
AMT icon
29
American Tower
AMT
$80.8B
$141M 0.73%
614,597
+4,447
+0.7% +$969K
VRSK icon
30
Verisk Analytics
VRSK
$25.4B
$139M 0.72%
931,461
+994
+0.1% +$147K
ACN icon
31
Accenture
ACN
$102B
$132M 0.68%
629,141
+7,758
+1% +$1.51M
VIG icon
32
Vanguard Dividend Appreciation ETF
VIG
$111B
$129M 0.66%
1,034,416
+77,736
+8% +$9.4M
SYK icon
33
Stryker
SYK
$125B
$128M 0.66%
610,921
+57,820
+10% +$12M
HD icon
34
Home Depot
HD
$331B
$127M 0.65%
582,709
+56,799
+11% +$12.9M
BRK.B icon
35
Berkshire Hathaway Class B
BRK.B
$1.1T
$125M 0.64%
553,739
+13,703
+3% +$2.98M
VEU icon
36
Vanguard FTSE All-World ex-US ETF
VEU
$66.6B
$123M 0.63%
2,281,702
+256,670
+13% +$13.3M
ABT icon
37
Abbott
ABT
$183B
$120M 0.62%
1,385,232
+56,795
+4% +$4.76M
JNJ icon
38
Johnson & Johnson
JNJ
$618B
$114M 0.59%
781,857
+30,811
+4% +$4.18M
INTU icon
39
Intuit
INTU
$86.5B
$109M 0.56%
416,648
+19,445
+5% +$5.08M
WSO icon
40
Watsco Inc
WSO
$12.7B
$109M 0.56%
604,172
-9,678
-2% -$1.7M
CPRT icon
41
Copart
CPRT
$27B
$109M 0.56%
4,786,460
+160,144
+3% +$3.42M
FTV icon
42
Fortive
FTV
$17.9B
$107M 0.55%
2,226,297
+76,041
+4% +$3.43M
KMX icon
43
CarMax
KMX
$8.13B
$104M 0.53%
1,183,593
+30,289
+3% +$2.85M
LULU icon
44
lululemon athletica
LULU
$13.5B
$99.8M 0.51%
430,918
+6,357
+1% +$1.35M
COST icon
45
Costco
COST
$422B
$97.1M 0.5%
330,527
-2,960
-0.9% -$880K
EXAS
46
DELISTED
Exact Sciences
EXAS
$96.4M 0.5%
1,042,541
+159,812
+18% +$14M
PG icon
47
Procter & Gamble
PG
$336B
$95.7M 0.49%
766,285
+81,435
+12% +$9.96M
TDG icon
48
TransDigm Group
TDG
$70.2B
$91.7M 0.47%
163,829
+319
+0.2% +$175K
ITW icon
49
Illinois Tool Works
ITW
$82.6B
$91.2M 0.47%
507,978
-4,240
-0.8% -$718K
DLB icon
50
Dolby
DLB
$5.51B
$90.7M 0.47%
1,317,649
+23,052
+2% +$1.53M
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.