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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
+563.35%
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
MBB icon
1176
iShares MBS ETF
MBB
$39B
$275K ﹤0.01%
2,665
-867
-25% -$90K
AABA
1177
DELISTED
Altaba Inc
AABA
$275K ﹤0.01%
+4,040
New +$285K
VXUS icon
1178
Vanguard Total International Stock ETF
VXUS
$158B
$274K ﹤0.01%
5,082
+1,119
+28% +$60.6K
BLUE
1179
DELISTED
bluebird bio
BLUE
$272K ﹤0.01%
+144
New +$297K
CPRI icon
1180
Capri Holdings
CPRI
$1.72B
$271K ﹤0.01%
3,946
+35
+0.9% +$2.45K
MRO
1181
DELISTED
Marathon Oil Corporation
MRO
$271K ﹤0.01%
11,626
-320
-3% -$6.7K
GEN icon
1182
Gen Digital
GEN
$16.8B
$270K ﹤0.01%
12,667
-149
-1% -$3.04K
LECO icon
1183
Lincoln Electric
LECO
$15.2B
$269K ﹤0.01%
2,881
+63
+2% +$5.83K
MDB icon
1184
MongoDB
MDB
$29.8B
$269K ﹤0.01%
+3,300
New +$220K
HAS icon
1185
Hasbro
HAS
$12.9B
$268K ﹤0.01%
2,545
-237
-9% -$23.7K
IYK icon
1186
iShares US Consumer Staples ETF
IYK
$1.41B
$268K ﹤0.01%
6,759
– –
RIO icon
1187
Rio Tinto
RIO
$162B
$268K ﹤0.01%
5,252
+90
+2% +$4.59K
IYC icon
1188
iShares US Consumer Discretionary ETF
IYC
$1.21B
$267K ﹤0.01%
5,036
– –
W icon
1189
Wayfair
W
$14.3B
$267K ﹤0.01%
+1,805
New +$230K
ACIW icon
1190
ACI Worldwide
ACIW
$5.61B
$264K ﹤0.01%
9,396
+57
+0.6% +$1.55K
FEI
1191
DELISTED
FIRST TRUST MLP AND ENERGY INCOME FUND
FEI
$264K ﹤0.01%
21,125
+1,125
+6% +$14.5K
FTSL icon
1192
First Trust Senior Loan Fund ETF
FTSL
$2.33B
$263K ﹤0.01%
5,472
-898
-14% -$43.1K
MPT
1193
Medical Properties Trust
MPT
$2.75B
$263K ﹤0.01%
17,614
+5,096
+41% +$74.3K
EWC icon
1194
iShares MSCI Canada ETF
EWC
$6.26B
$262K ﹤0.01%
9,115
-7,407
-45% -$214K
IXN icon
1195
iShares Global Tech ETF
IXN
$8.74B
$262K ﹤0.01%
8,988
+2,304
+34% +$65.9K
TOL icon
1196
Toll Brothers
TOL
$14.1B
$262K ﹤0.01%
7,925
-330
-4% -$11.9K
AVNS
1197
DELISTED
Avanos Medical
AVNS
$261K ﹤0.01%
3,804
-475
-11% -$30.6K
SWKS icon
1198
Skyworks Solutions
SWKS
$10.1B
$261K ﹤0.01%
2,875
+208
+8% +$19.5K
SYRE icon
1199
Spyre Therapeutics
SYRE
$9.12B
$260K ﹤0.01%
1,088
– –
WDR
1200
DELISTED
Waddell & Reed Financial, Inc.
WDR
$259K ﹤0.01%
12,250
-10,500
-46% -$211K
46 47
48
49 50

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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.