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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
+10.92%
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
$16.3B
AUM Growth
+$1.62B
Cap. Flow
+$161M
Cap. Flow %
0.98%
Top 10 Hldgs %
21.12%
Holding
1,696
New
110
Increased
623
Reduced
570
Closed
77

Top Buys

Rank Stock Value
1
DLB icon
Dolby
DLB
+$37M
2
DSI icon
iShares MSCI KLD 400 Social ETF
DSI
+$20M
3
PGR icon
Progressive
PGR
+$19.6M
4
KMX icon
CarMax
KMX
+$19.2M
5
TYL icon
Tyler Technologies
TYL
+$18.5M

Top Sells

Rank Stock Value
1
SBUX icon
Starbucks
SBUX
+$35.1M
2
META icon
Meta Platforms (Facebook)
META
+$18.3M
3
INGN icon
Inogen
INGN
+$14.6M
4
MKTX icon
MarketAxess Holdings
MKTX
+$13M
5
PF
Pinnacle Foods, Inc.
PF
+$12.6M

Sector Composition

Rank Sector Weight
1 Technology 21.34%
2 Healthcare 18.9%
3 Financials 12.91%
4 Industrials 9.71%
5 Consumer Discretionary 9.37%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
ITW icon
51
Illinois Tool Works
ITW
$83B
$77.2M 0.47%
547,137
-4,309
-0.8% -$607K
ABBV icon
52
AbbVie
ABBV
$433B
$75.9M 0.47%
802,619
+18,223
+2% +$1.73M
TYL icon
53
Tyler Technologies
TYL
$12.5B
$75.2M 0.46%
306,744
+77,750
+34% +$18.5M
PX
54
DELISTED
Praxair Inc
PX
$73.7M 0.45%
458,281
-8,218
-2% -$1.32M
AMT icon
55
American Tower
AMT
$80.6B
$73.6M 0.45%
506,554
+34,561
+7% +$5.07M
NTRS icon
56
Northern Trust
NTRS
$33.3B
$72.8M 0.45%
713,200
-10,547
-1% -$1.13M
WEX icon
57
WEX
WEX
$6.38B
$70.6M 0.43%
351,714
-156
-0% -$29.9K
COST icon
58
Costco
COST
$423B
$69.6M 0.43%
296,326
-1,163
-0.4% -$262K
CHKP icon
59
Check Point Software Technologies
CHKP
$12.6B
$69M 0.42%
586,070
-30,347
-5% -$3.45M
UNH icon
60
UnitedHealth
UNH
$377B
$68.9M 0.42%
259,148
+667
+0.3% +$173K
FISV
61
Fiserv Inc
FISV
$29B
$68.7M 0.42%
834,341
+425
+0.1% +$33.4K
ABT icon
62
Abbott
ABT
$185B
$68.5M 0.42%
934,174
+46,903
+5% +$3.08M
BKNG icon
63
Booking.com
BKNG
$149B
$68.4M 0.42%
862,300
-20,525
-2% -$1.62M
CELG
64
DELISTED
Celgene Corp
CELG
$63.6M 0.39%
711,061
-9,663
-1% -$854K
BA icon
65
Boeing
BA
$185B
$63.1M 0.39%
169,712
+13,273
+8% +$4.66M
TDG icon
66
TransDigm Group
TDG
$71.9B
$62.4M 0.38%
167,706
+1,256
+0.8% +$452K
AME icon
67
Ametek
AME
$55.9B
$61.8M 0.38%
781,524
+151
+0% +$11.6K
CSCO icon
68
Cisco
CSCO
$457B
$61.6M 0.38%
1,265,679
+39,943
+3% +$1.8M
INTU icon
69
Intuit
INTU
$87.1B
$61.1M 0.37%
268,640
+1,105
+0.4% +$237K
EVH icon
70
Evolent Health
EVH
$353M
$60.8M 0.37%
2,141,271
-43,063
-2% -$1.03M
EXAS
71
DELISTED
Exact Sciences
EXAS
$60.8M 0.37%
770,180
+136,803
+22% +$8.92M
ADP icon
72
Automatic Data Processing
ADP
$107B
$57.7M 0.35%
383,220
-11,598
-3% -$1.64M
CVX icon
73
Chevron
CVX
$385B
$56.8M 0.35%
464,762
+10,113
+2% +$1.23M
DIS icon
74
Walt Disney
DIS
$170B
$54.9M 0.34%
469,080
+122,452
+35% +$13.6M
WBA
75
DELISTED
Walgreens Boots Alliance
WBA
$52.9M 0.32%
725,352
-111,167
-13% -$7.55M
1 2
3
4 5

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William Blair & Company's Q3 2018 Portfolio in Review

As of Q3 2018, William Blair & Company held 1,696 positions worth $16.3B, up 11% from $14.7B the previous quarter. Its ten largest holdings account for 21% of the portfolio.

William Blair & Company's Q3 2018 filing shows 110 new, 623 increased, 570 reduced and 77 closed positions. Its largest new stake was Marvell Technology: 234,218 shares worth $4.52M. The largest sale was Starbucks, an estimated $35.1M.

By sector, the portfolio is most concentrated in Technology at 21% of assets, up from 20% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q3 2018 buy was Marvell Technology: 234,218 shares worth $4.52M.
  • William Blair & Company added most to Dolby in Q3 2018, an estimated $37M increase.
  • William Blair & Company's biggest Q3 2018 reduction was Starbucks, cutting an estimated $35.1M.
  • William Blair & Company fully exited Williams Partners L.P. in Q3 2018, selling an estimated $7.8M.
  • William Blair & Company's ten largest holdings make up 21% of its $16.3B portfolio in Q3 2018.
  • William Blair & Company opened 110 new positions and closed 77 in Q3 2018.
  • William Blair & Company's portfolio value rose 11% quarter-over-quarter to $16.3B.

Based on William Blair & Company's 13F filing for Q3 2018, filed 13 Nov 2018.