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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
FLRN icon
201
State Street SPDR Bloomberg Investment Grade Floating Rate ETF
FLRN
$3.09B
$15M 0.09%
487,132
+80,534
+20% +$2.48M
RPD icon
202
Rapid7
RPD
$720M
$14.9M 0.09%
402,804
-4,744
-1% -$159K
KO icon
203
Coca-Cola
KO
$372B
$14.8M 0.09%
321,213
+21,510
+7% +$983K
GE icon
204
GE Aerospace
GE
$391B
$14.7M 0.09%
271,512
-41,901
-13% -$2.58M
BIDU icon
205
Baidu
BIDU
$38.2B
$14.6M 0.09%
63,885
-3,246
-5% -$763K
CCI icon
206
Crown Castle
CCI
$33.9B
$14.3M 0.09%
128,321
+106,066
+477% +$11.8M
AGG icon
207
iShares Core US Aggregate Bond ETF
AGG
$138B
$14.3M 0.09%
135,128
+44,973
+50% +$4.77M
BAX icon
208
Baxter International
BAX
$14.7B
$14.1M 0.09%
183,056
+2,273
+1% +$169K
PRAA icon
209
PRA Group
PRAA
$672M
$14.1M 0.09%
391,431
-161,832
-29% -$6.33M
SIX
210
DELISTED
Six Flags Entertainment Corp.
SIX
$14.1M 0.09%
201,296
+112,877
+128% +$7.66M
HLT icon
211
Hilton Worldwide
HLT
$70.2B
$13.8M 0.08%
171,065
+3,130
+2% +$247K
MO icon
212
Altria Group
MO
$114B
$13.5M 0.08%
223,476
-8,145
-4% -$484K
DEO icon
213
Diageo
DEO
$48.8B
$13.4M 0.08%
94,803
-93
-0.1% -$13.3K
IRM icon
214
Iron Mountain
IRM
$37.3B
$13.4M 0.08%
388,711
+14,668
+4% +$523K
MCHP icon
215
Microchip Technology
MCHP
$43.8B
$13.3M 0.08%
338,190
-4,706
-1% -$208K
NOW icon
216
ServiceNow
NOW
$122B
$13.2M 0.08%
337,495
+8,810
+3% +$333K
WFC icon
217
Wells Fargo
WFC
$267B
$13.1M 0.08%
249,777
-3,704
-1% -$211K
EEM icon
218
iShares MSCI Emerging Markets ETF
EEM
$29.7B
$12.9M 0.08%
300,561
-2,427
-0.8% -$105K
FIS icon
219
Fidelity National Information Services
FIS
$22.9B
$12.8M 0.08%
117,543
-1,460
-1% -$157K
UNF icon
220
Unifirst Corp
UNF
$5.25B
$12.7M 0.08%
73,295
-267
-0.4% -$49.1K
MUB icon
221
iShares National Muni Bond ETF
MUB
$45.4B
$12.5M 0.08%
115,797
+81,138
+234% +$8.82M
NKTR icon
222
Nektar Therapeutics
NKTR
$2.46B
$12.3M 0.08%
13,456
+138
+1% +$118K
CB icon
223
Chubb
CB
$134B
$12.3M 0.08%
91,748
-4,930
-5% -$667K
USB icon
224
US Bancorp
USB
$100B
$12.2M 0.07%
231,149
+21,773
+10% +$1.15M
XLV icon
225
State Street Health Care Select Sector SPDR ETF
XLV
$41.8B
$12.2M 0.07%
128,045
+11,271
+10% +$1.02M
7 8
9
10 11

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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.