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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
-13.3%
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
$13.7B
AUM Growth
-$2.6B
Cap. Flow
-$222M
Cap. Flow %
-1.61%
Top 10 Hldgs %
20.6%
Holding
1,859
New
191
Increased
555
Reduced
650
Closed
205

Top Buys

Rank Stock Value
1
LIN icon
Linde
LIN
+$55.6M
2
EFA icon
iShares MSCI EAFE ETF
EFA
+$22.8M
3
ULTA icon
Ulta Beauty
ULTA
+$22.1M
4
INTU icon
Intuit
INTU
+$22M
5
DIS icon
Walt Disney
DIS
+$21.1M

Top Sells

Rank Stock Value
1
PX
Praxair Inc
PX
+$73.7M
2
RHT
Red Hat Inc
RHT
+$46M
3
ESRX
Express Scripts Holding Company
ESRX
+$45.8M
4
META icon
Meta Platforms (Facebook)
META
+$32.9M
5
P
Everpure Inc
P
+$31.5M

Sector Composition

Rank Sector Weight
1 Technology 20.75%
2 Healthcare 18.42%
3 Financials 12.76%
4 Consumer Discretionary 9.45%
5 Industrials 9.06%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
KMPR icon
176
Kemper
KMPR
$1.68B
$15.5M 0.11%
233,692
-103,608
-31% -$7.55M
CCI icon
177
Crown Castle
CCI
$32.2B
$15.3M 0.11%
141,183
+12,862
+10% +$1.41M
NVS icon
178
Novartis
NVS
$297B
$15.3M 0.11%
198,620
+3,568
+2% +$278K
AZN icon
179
AstraZeneca
AZN
$250B
$15M 0.11%
197,489
-10,297
-5% -$804K
PLAY icon
180
Dave & Buster's
PLAY
$357M
$15M 0.11%
336,451
-90,357
-21% -$5.08M
POOL icon
181
Pool Corp
POOL
$7.5B
$14.8M 0.11%
99,847
+85,722
+607% +$12.8M
AMG icon
182
Affiliated Managers Group
AMG
$9.76B
$14.8M 0.11%
151,399
-143,981
-49% -$16.3M
QNST icon
183
QuinStreet
QNST
$1.21B
$14.7M 0.11%
+906,860
New +$13.6M
SGEN
184
DELISTED
Seagen Inc. Common Stock
SGEN
$14.6M 0.11%
257,810
-24,728
-9% -$1.55M
CMCSA icon
185
Comcast
CMCSA
$90B
$14.5M 0.11%
426,143
-27,622
-6% -$1.01M
WST icon
186
West Pharmaceutical
WST
$24.9B
$14.5M 0.11%
147,453
-18,861
-11% -$2.05M
PM icon
187
Philip Morris
PM
$295B
$14.3M 0.1%
214,589
-18,144
-8% -$1.52M
ET icon
188
Energy Transfer Partners
ET
$69.3B
$14.3M 0.1%
794,931
+626,626
+372% +$9.52M
CAT icon
189
Caterpillar
CAT
$387B
$13.9M 0.1%
109,547
-34,764
-24% -$4.52M
PANW icon
190
Palo Alto Networks
PANW
$297B
$13.8M 0.1%
440,766
-10,020
-2% -$312K
HON icon
191
Honeywell
HON
$78B
$13.7M 0.1%
109,978
-2,145
-2% -$293K
TD icon
192
Toronto Dominion Bank
TD
$200B
$13.6M 0.1%
273,749
-43,271
-14% -$2.37M
XYL icon
193
Xylem
XYL
$28.1B
$13.3M 0.1%
199,011
+61,931
+45% +$4.28M
MCHP icon
194
Microchip Technology
MCHP
$46B
$13.1M 0.1%
365,260
+27,070
+8% +$956K
PRLB icon
195
Protolabs
PRLB
$2.13B
$13M 0.09%
115,410
+3,031
+3% +$374K
RBA icon
196
RB Global
RBA
$17.5B
$13M 0.09%
397,569
-63,872
-14% -$2.15M
EMR icon
197
Emerson Electric
EMR
$88.3B
$13M 0.09%
216,950
-2,756
-1% -$186K
PXD
198
DELISTED
Pioneer Natural Resource Co.
PXD
$12.9M 0.09%
98,350
-15,303
-13% -$2.34M
SMG icon
199
ScottsMiracle-Gro
SMG
$3.66B
$12.8M 0.09%
208,531
-10,551
-5% -$751K
EFG icon
200
iShares MSCI EAFE Growth ETF
EFG
$17.3B
$12.8M 0.09%
185,300
+126,367
+214% +$9.21M
6 7
8
9 10

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William Blair & Company's Q4 2018 Portfolio in Review

As of Q4 2018, William Blair & Company held 1,859 positions worth $13.7B, down 16% from $16.3B the previous quarter. Its ten largest holdings account for 21% of the portfolio.

William Blair & Company's Q4 2018 filing shows 191 new, 555 increased, 650 reduced and 205 closed positions. Its largest new stake was Linde: 352,000 shares worth $54.9M. The largest sale was Praxair Inc, an estimated $73.7M.

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

  • William Blair & Company's largest Q4 2018 buy was Linde: 352,000 shares worth $54.9M.
  • William Blair & Company added most to iShares MSCI EAFE ETF in Q4 2018, an estimated $22.8M increase.
  • William Blair & Company's biggest Q4 2018 reduction was Red Hat Inc, cutting an estimated $46M.
  • William Blair & Company fully exited Praxair Inc in Q4 2018, selling an estimated $73.7M.
  • William Blair & Company's ten largest holdings make up 21% of its $13.7B portfolio in Q4 2018.
  • William Blair & Company opened 191 new positions and closed 205 in Q4 2018.
  • William Blair & Company's portfolio value fell 16% quarter-over-quarter to $13.7B.

Based on William Blair & Company's 13F filing for Q4 2018, filed 14 Feb 2019.