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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
JBHT icon
126
JB Hunt Transport Services
JBHT
$25.1B
$29.6M 0.18%
248,839
-2,567
-1% -$312K
MRK icon
127
Merck
MRK
$316B
$29.1M 0.18%
430,319
+2,703
+0.6% +$172K
PEP icon
128
PepsiCo
PEP
$190B
$29M 0.18%
259,489
-17,109
-6% -$1.94M
WAGE
129
DELISTED
WageWorks, Inc.
WAGE
$28.6M 0.18%
669,590
+1,135
+0.2% +$57.3K
PLAY icon
130
Dave & Buster's
PLAY
$403M
$28.3M 0.17%
426,808
+355
+0.1% +$19.2K
INTC icon
131
Intel
INTC
$509B
$28M 0.17%
591,238
-21,802
-4% -$1.06M
BLK icon
132
Blackrock
BLK
$175B
$27.7M 0.17%
58,754
-12,881
-18% -$6.26M
CME icon
133
CME Group
CME
$95.7B
$27.6M 0.17%
162,367
+173
+0.1% +$29.1K
PAYX icon
134
Paychex
PAYX
$41.9B
$27.5M 0.17%
373,823
+16,096
+4% +$1.16M
USFD icon
135
US Foods
USFD
$21.9B
$27.5M 0.17%
891,267
+485,232
+120% +$16.8M
GWW icon
136
W.W. Grainger
GWW
$64.7B
$27.5M 0.17%
76,835
-3,440
-4% -$1.18M
IWM icon
137
iShares Russell 2000 ETF
IWM
$83B
$27.4M 0.17%
162,534
+7,426
+5% +$1.25M
KMPR icon
138
Kemper
KMPR
$1.72B
$27.1M 0.17%
337,300
+187,102
+125% +$14.7M
TIP icon
139
iShares TIPS Bond ETF
TIP
$14.5B
$26.4M 0.16%
238,695
+26,019
+12% +$2.91M
LLY icon
140
Eli Lilly
LLY
$995B
$26.4M 0.16%
245,801
+9,532
+4% +$953K
ILMN icon
141
Illumina
ILMN
$29.9B
$26.1M 0.16%
73,036
-9,128
-11% -$2.93M
DD icon
142
DuPont de Nemours
DD
$19.1B
$26M 0.16%
159,454
+18,085
+13% +$3.11M
IWV icon
143
iShares Russell 3000 ETF
IWV
$20.3B
$25.8M 0.16%
149,865
-1,050
-0.7% -$178K
BL icon
144
BlackLine
BL
$1.94B
$25.7M 0.16%
455,254
+9,748
+2% +$485K
T icon
145
AT&T
T
$160B
$25.5M 0.16%
1,006,367
+56,122
+6% +$1.37M
TRMB icon
146
Trimble
TRMB
$13.5B
$25.3M 0.15%
581,639
+22,509
+4% +$880K
ZBRA icon
147
Zebra Technologies
ZBRA
$13.9B
$25.3M 0.15%
142,802
-760
-0.5% -$122K
ORLY icon
148
O'Reilly Automotive
ORLY
$73.3B
$25.2M 0.15%
1,087,710
-23,760
-2% -$505K
IBM icon
149
IBM
IBM
$222B
$24.8M 0.15%
171,583
+14,940
+10% +$2.09M
HEI icon
150
HEICO Corp
HEI
$50.4B
$24.7M 0.15%
267,037
-13,454
-5% -$1.11M
4 5
6
7 8

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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.