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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 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
AXGN icon
326
Axogen
AXGN
$2.62B
$10.3M 0.04%
205,280
-59,879
-23% -$2.64M
LFUS icon
327
Littelfuse
LFUS
$11.6B
$10.3M 0.04%
44,931
+4,809
+12% +$1.03M
GDEN
328
DELISTED
Golden Entertainment
GDEN
$10.2M 0.04%
379,211
+40,183
+12% +$1.12M
WAGE
329
DELISTED
WageWorks, Inc.
WAGE
$10.2M 0.04%
+204,532
New +$9.33M
MRC
330
DELISTED
MRC Global
MRC
$10.1M 0.04%
+464,970
New +$9.18M
AIN icon
331
Albany International
AIN
$1.79B
$9.8M 0.04%
162,880
+58,043
+55% +$3.59M
EPAM icon
332
EPAM Systems
EPAM
$5.16B
$9.68M 0.04%
77,834
+10,546
+16% +$1.27M
CASH icon
333
Pathward Financial
CASH
$1.82B
$9.63M 0.04%
296,520
+31,071
+12% +$1.13M
RP
334
DELISTED
RealPage, Inc.
RP
$9.4M 0.04%
170,663
-30,824
-15% -$1.74M
MRCY icon
335
Mercury Systems
MRCY
$6.53B
$9.34M 0.03%
245,406
+79,963
+48% +$3.09M
KAI icon
336
Kadant
KAI
$4.01B
$9.25M 0.03%
96,189
-43,216
-31% -$4.15M
ICFI icon
337
ICF International
ICFI
$1.65B
$9.24M 0.03%
130,124
+13,796
+12% +$936K
TFIN icon
338
Triumph Financial Inc
TFIN
$1.83B
$9.06M 0.03%
+222,327
New +$8.98M
WLDN icon
339
Willdan Group
WLDN
$1.28B
$9.05M 0.03%
292,209
+43,192
+17% +$1.25M
AGYS icon
340
Agilysys
AGYS
$3.01B
$8.99M 0.03%
579,987
+145,081
+33% +$1.92M
XENT
341
DELISTED
Intersect ENT, Inc
XENT
$8.59M 0.03%
229,463
+130,392
+132% +$5.12M
BVN icon
342
Compañía de Minas Buenaventura
BVN
$8.79B
$8.53M 0.03%
626,103
-238,128
-28% -$3.71M
NVR icon
343
NVR
NVR
$17.1B
$8.46M 0.03%
2,850
ARGT icon
344
Global X MSCI Argentina ETF
ARGT
$819M
$8.14M 0.03%
302,000
+59,400
+24% +$1.91M
SLP icon
345
Simulations Plus
SLP
$371M
$7.92M 0.03%
355,876
+69,569
+24% +$1.31M
IBN icon
346
ICICI Bank
IBN
$108B
$7.75M 0.03%
965,104
+77,606
+9% +$665K
FMC icon
347
FMC
FMC
$1.31B
$7.36M 0.03%
95,111
+20,903
+28% +$1.55M
LAD icon
348
Lithia Motors
LAD
$8.4B
$7.31M 0.03%
77,310
+8,113
+12% +$804K
VEDL
349
DELISTED
Vedanta Limited American Depostary Shares (Each representing four equity shares)
VEDL
$7.26M 0.03%
533,696
+61,199
+13% +$983K
IWO icon
350
iShares Russell 2000 Growth ETF
IWO
$14.9B
$6.93M 0.03%
33,904
+24,504
+261% +$4.9M

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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.