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William Blair Investment Management

William Blair Investment Management Portfolio holdings

AUM $30.3B
1-Year Est. Return 33.75%
This Fund
S&P 500
This Quarter Est. Return
+6.15%
1 Year Est. Return
+33.75%
3 Year Est. Return
+108.55%
5 Year Est. Return
+126.9%
10 Year Est. Return
+788.31%
AUM
$26.9B
AUM Growth
+$687M
Cap. Flow
-$320M
Cap. Flow %
-1.19%
Top 10 Hldgs %
18.65%
Holding
522
New
90
Increased
140
Reduced
241
Closed
46

Top Buys

Rank Stock Value
1
GDDY icon
GoDaddy
GDDY
+$186M
2
PODD icon
Insulet
PODD
+$107M
3
GWR
Genesee & Wyoming Inc.
GWR
+$106M
4
SPY icon
State Street SPDR S&P 500 ETF Trust
SPY
+$99.1M
5
FND icon
Floor & Decor
FND
+$92.3M

Top Sells

Rank Stock Value
1
ABMD
Abiomed Inc
ABMD
+$154M
2
DPZ icon
Domino's
DPZ
+$129M
3
NBIS
Nebius Group N.V.
NBIS
+$115M
4
ZTS icon
Zoetis
ZTS
+$104M
5
YELP icon
Yelp
YELP
+$103M

Sector Composition

Rank Sector Weight
1 Consumer Discretionary 15.39%
2 Technology 15.25%
3 Healthcare 14.14%
4 Financials 12.82%
5 Industrials 12.81%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
RBA icon
76
RB Global
RBA
$16.8B
$112M 0.42%
3,279,066
+365,912
+13% +$12.3M
ULTA icon
77
Ulta Beauty
ULTA
$23.6B
$112M 0.42%
478,723
+40,420
+9% +$9.76M
GKOS icon
78
Glaukos
GKOS
$10.7B
$109M 0.41%
2,691,208
-77,837
-3% -$2.77M
RHT
79
DELISTED
Red Hat Inc
RHT
$109M 0.4%
808,476
-320,237
-28% -$51.7M
EXAS
80
DELISTED
Exact Sciences
EXAS
$108M 0.4%
1,813,466
-164,153
-8% -$8.83M
EEFT icon
81
Euronet Worldwide
EEFT
$2.65B
$105M 0.39%
1,258,434
-15,841
-1% -$1.28M
OZK icon
82
Bank OZK
OZK
$5.65B
$105M 0.39%
2,335,250
-946,212
-29% -$45.1M
SBAC icon
83
SBA Communications
SBAC
$19.4B
$105M 0.39%
635,764
-36,017
-5% -$5.81M
FTV icon
84
Fortive
FTV
$18.8B
$104M 0.39%
2,130,961
-45,314
-2% -$2.16M
FSV icon
85
FirstService
FSV
$6.34B
$103M 0.38%
1,354,757
-2,120
-0.2% -$152K
PODD icon
86
Insulet
PODD
$10B
$102M 0.38%
+1,189,568
New +$107M
VIRT icon
87
Virtu Financial
VIRT
$4.94B
$101M 0.38%
3,803,817
-147,711
-4% -$4.77M
NICE icon
88
Nice
NICE
$6.02B
$99.8M 0.37%
961,448
+114,946
+14% +$11.6M
NATI
89
DELISTED
National Instruments Corp
NATI
$97.1M 0.36%
2,312,265
-32,468
-1% -$1.44M
ROST icon
90
Ross Stores
ROST
$81.2B
$96.7M 0.36%
1,140,914
-86,635
-7% -$7.05M
BURL icon
91
Burlington
BURL
$23.1B
$93.4M 0.35%
+620,244
New +$88.3M
EWZ icon
92
iShares MSCI Brazil ETF
EWZ
$8.65B
$93.3M 0.35%
2,912,600
+1,203,300
+70% +$46.4M
NBIS
93
Nebius Group N.V.
NBIS
$48.5B
$93.1M 0.35%
2,592,577
-3,296,614
-56% -$115M
NUS icon
94
Nu Skin
NUS
$236M
$92.5M 0.34%
1,183,022
+262,654
+29% +$20.3M
LULU icon
95
lululemon athletica
LULU
$14.3B
$92.3M 0.34%
739,630
+721,801
+4,048% +$77M
ACN icon
96
Accenture
ACN
$110B
$91.4M 0.34%
558,423
+67,565
+14% +$10.5M
AZPN
97
DELISTED
ASPEN TECHNOLOGY INC
AZPN
$91M 0.34%
+981,276
New +$91M
JOBS
98
DELISTED
51job Inc
JOBS
$89.1M 0.33%
912,999
+447,806
+96% +$43.9M
TWOU
99
DELISTED
2U Inc
TWOU
$87.5M 0.33%
34,922
-31,009
-47% -$82.3M
WB icon
100
Weibo
WB
$1.93B
$87.2M 0.32%
981,933
-20,719
-2% -$2.25M
2 3
4
5 6

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William Blair Investment Management's Q2 2018 Portfolio in Review

As of Q2 2018, William Blair Investment Management held 522 positions worth $26.9B, up 2.6% from $26.2B the previous quarter. Its ten largest holdings account for 19% of the portfolio.

William Blair Investment Management's Q2 2018 filing shows 90 new, 140 increased, 241 reduced and 46 closed positions. Its largest new stake was GoDaddy: 2,731,356 shares worth $193M. The largest sale was Abiomed Inc, an estimated $154M.

By sector, the portfolio is most concentrated in Consumer Discretionary at 15% of assets, up from 14% a quarter earlier, followed by Technology and Healthcare.

  • William Blair Investment Management's largest Q2 2018 buy was GoDaddy: 2,731,356 shares worth $193M.
  • William Blair Investment Management added most to State Street SPDR S&P 500 ETF Trust in Q2 2018, an estimated $99.1M increase.
  • William Blair Investment Management's biggest Q2 2018 reduction was Abiomed Inc, cutting an estimated $154M.
  • William Blair Investment Management fully exited Yelp in Q2 2018, selling an estimated $103M.
  • William Blair Investment Management's ten largest holdings make up 19% of its $26.9B portfolio in Q2 2018.
  • William Blair Investment Management opened 90 new positions and closed 46 in Q2 2018.
  • William Blair Investment Management's portfolio value rose 2.6% quarter-over-quarter to $26.9B.

Based on William Blair Investment Management's 13F filing for Q2 2018, filed 14 Aug 2018.