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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
+13.98%
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
$27.3B
AUM Growth
+$3.7B
Cap. Flow
+$865M
Cap. Flow %
3.17%
Top 10 Hldgs %
25.38%
Holding
1,900
New
178
Increased
749
Reduced
623
Closed
72

Top Buys

Rank Stock Value
1
SPLK
Splunk Inc
SPLK
+$77.8M
2
GD icon
General Dynamics
GD
+$49.6M
3
ROK icon
Rockwell Automation
ROK
+$43.3M
4
LMBS icon
First Trust Exchange-Traded Fund IV First Trust Low Duration Opportunities ETF
LMBS
+$32.3M
5
JPM icon
JPMorgan Chase
JPM
+$30.6M

Top Sells

Rank Stock Value
1
WORK
Slack Technologies, Inc.
WORK
+$24.2M
2
NTRS icon
Northern Trust
NTRS
+$24.1M
3
BKNG icon
Booking.com
BKNG
+$22.5M
4
EXEL icon
Exelixis
EXEL
+$17.5M
5
DOCU
DocuSign
DOCU
+$15M

Sector Composition

Rank Sector Weight
1 Technology 27.82%
2 Healthcare 18.6%
3 Financials 11.15%
4 Consumer Discretionary 10.38%
5 Industrials 8.96%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
ABT icon
26
Abbott
ABT
$192B
$196M 0.72%
1,787,537
+113,328
+7% +$12.3M
SYK icon
27
Stryker
SYK
$132B
$182M 0.67%
742,181
+28,527
+4% +$6.46M
DIS icon
28
Walt Disney
DIS
$177B
$181M 0.66%
998,319
+100,223
+11% +$14.4M
TYL icon
29
Tyler Technologies
TYL
$13B
$180M 0.66%
413,043
+728
+0.2% +$300K
CPRT icon
30
Copart
CPRT
$26.7B
$176M 0.65%
5,539,264
+60,292
+1% +$1.76M
VRSK icon
31
Verisk Analytics
VRSK
$23.4B
$175M 0.64%
844,232
+150
+0% +$29.2K
FAST icon
32
Fastenal
FAST
$60B
$174M 0.64%
7,127,616
-92,656
-1% -$2.18M
INTU icon
33
Intuit
INTU
$91B
$170M 0.62%
447,617
+12,466
+3% +$4.38M
META icon
34
Meta Platforms (Facebook)
META
$1.48T
$169M 0.62%
617,460
+24,061
+4% +$6.6M
HD icon
35
Home Depot
HD
$345B
$165M 0.61%
622,826
+9,037
+1% +$2.48M
ACN icon
36
Accenture
ACN
$108B
$164M 0.6%
629,022
+6,236
+1% +$1.49M
POOL icon
37
Pool Corp
POOL
$7.27B
$153M 0.56%
410,840
+47,869
+13% +$16.7M
VIG icon
38
Vanguard Dividend Appreciation ETF
VIG
$115B
$151M 0.55%
1,071,678
-60,281
-5% -$8.17M
AMT icon
39
American Tower
AMT
$79.8B
$151M 0.55%
672,703
+25,954
+4% +$6.03M
TDOC icon
40
Teladoc Health
TDOC
$1.21B
$147M 0.54%
735,950
+23,056
+3% +$4.69M
COST icon
41
Costco
COST
$421B
$147M 0.54%
389,335
+4,795
+1% +$1.79M
GWRE icon
42
Guidewire Software
GWRE
$14.5B
$146M 0.54%
1,136,539
-90,364
-7% -$10.3M
JNJ icon
43
Johnson & Johnson
JNJ
$629B
$146M 0.53%
925,256
+37,983
+4% +$5.61M
LULU icon
44
lululemon athletica
LULU
$13.8B
$142M 0.52%
408,692
+6,133
+2% +$2.13M
TWLO icon
45
Twilio
TWLO
$38B
$139M 0.51%
411,356
+8,643
+2% +$2.7M
OKTA icon
46
Okta
OKTA
$26.1B
$135M 0.49%
529,299
+14,122
+3% +$3.36M
CHWY icon
47
Chewy
CHWY
$9.07B
$130M 0.48%
1,444,562
+33,187
+2% +$2.42M
FTV icon
48
Fortive
FTV
$18.5B
$130M 0.48%
2,431,502
-136,215
-5% -$7M
ABBV icon
49
AbbVie
ABBV
$439B
$129M 0.47%
1,207,497
+73,096
+6% +$7.02M
ABMD
50
DELISTED
Abiomed Inc
ABMD
$128M 0.47%
395,982
-4,658
-1% -$1.29M
1
2
3 4 5

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William Blair & Company's Q4 2020 Portfolio in Review

As of Q4 2020, William Blair & Company held 1,900 positions worth $27.3B, up 16% from $23.6B the previous quarter. Its ten largest holdings account for 25% of the portfolio.

William Blair & Company deployed $865M of net new capital in Q4 2020, opening 178 new positions and adding to 749 existing holdings. Its largest new stake was Seagen Inc. Common Stock: 91,539 shares worth $16M.

By sector, the portfolio is most concentrated in Technology at 28% of assets, up from 27% a quarter earlier, followed by Healthcare and Financials.

On the sell side, the largest reduction was Slack Technologies, Inc., an estimated $24.2M trimmed.

  • William Blair & Company's largest Q4 2020 buy was Seagen Inc. Common Stock: 91,539 shares worth $16M.
  • William Blair & Company added most to Splunk Inc in Q4 2020, an estimated $77.8M increase.
  • William Blair & Company's biggest Q4 2020 reduction was Slack Technologies, Inc., cutting an estimated $24.2M.
  • William Blair & Company fully exited Dunkin' Brands Group, Inc. in Q4 2020, selling an estimated $12.1M.
  • William Blair & Company's ten largest holdings make up 25% of its $27.3B portfolio in Q4 2020.
  • William Blair & Company opened 178 new positions and closed 72 in Q4 2020.
  • William Blair & Company's portfolio value rose 16% quarter-over-quarter to $27.3B.

Based on William Blair & Company's 13F filing for Q4 2020, filed 9 Feb 2021.