We are live on ! Find out more
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
+7.4%
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
$14.7B
AUM Growth
+$1.4B
Cap. Flow
+$534M
Cap. Flow %
3.62%
Top 10 Hldgs %
19%
Holding
1,488
New
131
Increased
528
Reduced
556
Closed
127

Top Sells

Rank Stock Value
1
ZD icon
Ziff Davis
ZD
+$22.1M
2
GE icon
GE Aerospace
GE
+$19.1M
3
EFX icon
Equifax
EFX
+$17.7M
4
NUVA
NuVasive, Inc.
NUVA
+$17.1M
5
WBA
Walgreens Boots Alliance
WBA
+$13.6M

Sector Composition

Rank Sector Weight
1 Healthcare 17.74%
2 Technology 17.58%
3 Financials 14.76%
4 Industrials 10.83%
5 Consumer Discretionary 9.09%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow
BIDU icon
201
Baidu
BIDU
$36.5B
$14.7M 0.1%
62,804
-426
-0.7% -$104K
TYL icon
202
Tyler Technologies
TYL
$13.3B
$14.7M 0.1%
82,779
+12,503
+18% +$2.22M
VGK icon
203
Vanguard FTSE Europe ETF
VGK
$30.8B
$14.6M 0.1%
247,359
+18,798
+8% +$1.1M
LKQ icon
204
LKQ Corp
LKQ
$5.76B
$14.6M 0.1%
359,527
+114,134
+47% +$4.37M
EEM icon
205
iShares MSCI Emerging Markets ETF
EEM
$28.6B
$14.6M 0.1%
309,255
+76,474
+33% +$3.54M
AYI icon
206
Acuity Brands
AYI
$10.1B
$14.5M 0.1%
82,129
-24,159
-23% -$4.02M
CB icon
207
Chubb
CB
$135B
$14.4M 0.1%
98,626
+65,347
+196% +$9.76M
VOO icon
208
Vanguard S&P 500 ETF
VOO
$972B
$14.3M 0.1%
58,349
+247
+0.4% +$59K
IUSV icon
209
iShares Core S&P US Value ETF
IUSV
$27.2B
$14.1M 0.1%
254,958
+4,312
+2% +$232K
CLX icon
210
Clorox
CLX
$11.7B
$13.9M 0.09%
93,429
-5,385
-5% -$733K
WST icon
211
West Pharmaceutical
WST
$23.9B
$13.5M 0.09%
137,077
+74,162
+118% +$7.27M
ROK icon
212
Rockwell Automation
ROK
$52.4B
$13.4M 0.09%
68,291
+62,453
+1,070% +$11.9M
DEO icon
213
Diageo
DEO
$49.5B
$13.4M 0.09%
91,740
+3,844
+4% +$530K
CMG icon
214
Chipotle Mexican Grill
CMG
$49.4B
$13.2M 0.09%
2,284,850
-238,450
-9% -$1.42M
SRCL
215
DELISTED
Stericycle Inc
SRCL
$13.1M 0.09%
193,312
-57,514
-23% -$3.9M
KMB icon
216
Kimberly-Clark
KMB
$36.6B
$13.1M 0.09%
108,446
-8,004
-7% -$934K
USB icon
217
US Bancorp
USB
$98B
$13M 0.09%
242,875
+12,564
+5% +$676K
HLT icon
218
Hilton Worldwide
HLT
$72.5B
$13M 0.09%
+162,456
New +$12.1M
MRCC
219
DELISTED
Monroe Capital Corp
MRCC
$12.9M 0.09%
938,644
+26,907
+3% +$385K
RTX icon
220
RTX Corp
RTX
$289B
$12.8M 0.09%
159,683
-688
-0.4% -$52.2K
RMAX icon
221
RE/MAX Holdings
RMAX
$198M
$12.8M 0.09%
263,682
-2,355
-0.9% -$135K
QQQ icon
222
Invesco QQQ Trust
QQQ
$450B
$12.8M 0.09%
82,060
-1,139
-1% -$174K
APD icon
223
Air Products & Chemicals
APD
$66.8B
$12.7M 0.09%
77,319
+27,403
+55% +$4.36M
UNF icon
224
Unifirst Corp
UNF
$5.31B
$12.7M 0.09%
76,873
-674
-0.9% -$107K
BDX icon
225
Becton Dickinson
BDX
$45.6B
$12.5M 0.08%
59,851
+5,920
+11% +$1.24M

Similar funds

William Blair & Company's Q4 2017 Portfolio in Review

As of Q4 2017, William Blair & Company held 1,488 positions worth $14.7B, up 10% from $13.3B the previous quarter. Its ten largest holdings account for 19% of the portfolio.

William Blair & Company deployed $534M of net new capital in Q4 2017, opening 131 new positions and adding to 528 existing holdings. Its largest new stake was Dynavax Technologies: 1,980,526 shares worth $37M.

By sector, the portfolio is most concentrated in Healthcare at 18% of assets, down from 19% a quarter earlier, followed by Technology and Financials.

On the sell side, the largest reduction was Ziff Davis, an estimated $22.1M trimmed.

  • William Blair & Company's largest Q4 2017 buy was Dynavax Technologies: 1,980,526 shares worth $37M.
  • William Blair & Company added most to Alphabet (Google) Class C in Q4 2017, an estimated $138M increase.
  • William Blair & Company's biggest Q4 2017 reduction was Ziff Davis, cutting an estimated $22.1M.
  • William Blair & Company fully exited Bob Evans Farms, Inc. in Q4 2017, selling an estimated $12.5M.
  • William Blair & Company's ten largest holdings make up 19% of its $14.7B portfolio in Q4 2017.
  • William Blair & Company opened 131 new positions and closed 127 in Q4 2017.
  • William Blair & Company's portfolio value rose 10% quarter-over-quarter to $14.7B.

Based on William Blair & Company's 13F filing for Q4 2017, filed 14 Feb 2018.