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William Blair Investment Management

William Blair Investment Management Portfolio holdings

AUM $33.3B
1-Year Est. Return 44.76%
This Fund
S&P 500
This Quarter Est. Return
+1.57%
1 Year Est. Return
+44.76%
3 Year Est. Return
+140.8%
5 Year Est. Return
+166.51%
10 Year Est. Return
+978.6%
AUM
$23.4B
AUM Growth
-$452M
Cap. Flow
-$478M
Cap. Flow %
-2.05%
Top 10 Hldgs %
20.73%
Holding
398
New
26
Increased
153
Reduced
172
Closed
41

Top Buys

Rank Stock Value
1
IAA
IAA, Inc. Common Stock
IAA
+$134M
2
SPY icon
State Street SPDR S&P 500 ETF Trust
SPY
+$128M
3
WWE
World Wrestling Entertainment
WWE
+$112M
4
PFPT
Proofpoint, Inc.
PFPT
+$102M
5
PRSP
Perspecta Inc. Common Stock
PRSP
+$97.8M

Top Sells

Rank Stock Value
1
RCI icon
Rogers Communications
RCI
+$201M
2
CSGP icon
CoStar Group
CSGP
+$173M
3
CPRT icon
Copart
CPRT
+$156M
4
GWR
Genesee & Wyoming Inc.
GWR
+$147M
5
DPZ icon
Domino's
DPZ
+$137M

Sector Composition

Rank Sector Weight
1 Technology 20.24%
2 Healthcare 13.8%
3 Consumer Discretionary 13.77%
4 Industrials 13.46%
5 Financials 13.14%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
CRS icon
251
Carpenter Technology
CRS
$26.7B
$15.1M 0.06%
293,072
-18,729
-6% -$905K
CAG icon
252
Conagra Brands
CAG
$7.14B
$15M 0.06%
489,690
-55,023
-10% -$1.58M
CVGW
253
DELISTED
Calavo Growers
CVGW
$15M 0.06%
157,166
+7,725
+5% +$709K
AORT icon
254
Artivion
AORT
$1.38B
$14.9M 0.06%
548,079
+25,012
+5% +$708K
BPFH
255
DELISTED
Boston Private Financial Holdings, Inc.
BPFH
$14.8M 0.06%
1,273,584
+253,663
+25% +$2.86M
PRMW
256
DELISTED
Primo Water Corporation
PRMW
$14.6M 0.06%
1,190,654
-455,064
-28% -$5.9M
CNC icon
257
Centene
CNC
$32.1B
$14.5M 0.06%
334,449
+2,195
+0.7% +$107K
AROC icon
258
Archrock
AROC
$5.78B
$14.1M 0.06%
1,417,489
-93,066
-6% -$929K
LFUS icon
259
Littelfuse
LFUS
$11.5B
$14.1M 0.06%
79,595
+10,717
+16% +$1.81M
AAT
260
American Assets Trust
AAT
$1.37B
$14.1M 0.06%
301,884
-18,937
-6% -$889K
SXT icon
261
Sensient Technologies
SXT
$5.61B
$14M 0.06%
204,439
-13,133
-6% -$895K
KMX icon
262
CarMax
KMX
$8.26B
$13.8M 0.06%
157,267
-64,145
-29% -$5.51M
LPSN icon
263
LivePerson
LPSN
$33.6M
$13.7M 0.06%
25,592
-7,372
-22% -$3.91M
PDCE
264
DELISTED
PDC Energy, Inc.
PDCE
$13.7M 0.06%
493,447
+50,662
+11% +$1.52M
CNK icon
265
Cinemark Holdings
CNK
$4.25B
$13.7M 0.06%
354,024
-22,621
-6% -$864K
OCFC icon
266
OceanFirst Financial
OCFC
$1.84B
$13.6M 0.06%
578,179
-37,983
-6% -$884K
WWW icon
267
Wolverine World Wide
WWW
$1.49B
$13.5M 0.06%
477,304
+24,638
+5% +$662K
SASR
268
DELISTED
Sandy Spring Bancorp Inc
SASR
$13.4M 0.06%
396,848
-101,542
-20% -$3.52M
SLP icon
269
Simulations Plus
SLP
$370M
$13.4M 0.06%
385,083
-90,809
-19% -$3.2M
HLX icon
270
Helix Energy Solutions
HLX
$1.5B
$13.2M 0.06%
1,641,062
+195,319
+14% +$1.58M
SLGN icon
271
Silgan Holdings
SLGN
$4.35B
$13.1M 0.06%
436,741
+20,350
+5% +$613K
ANF icon
272
Abercrombie & Fitch
ANF
$5.24B
$13M 0.06%
835,056
+43,779
+6% +$731K
QNST icon
273
QuinStreet
QNST
$1.2B
$12.9M 0.06%
1,028,611
+54,468
+6% +$743K
UMPQ
274
DELISTED
Umpqua Holdings Corp
UMPQ
$12.6M 0.05%
764,638
-45,399
-6% -$746K
SMTC icon
275
Semtech
SMTC
$12.2B
$12.5M 0.05%
257,810
-16,938
-6% -$804K
9 10
11
12 13

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William Blair Investment Management's Q3 2019 Portfolio in Review

As of Q3 2019, William Blair Investment Management held 398 positions worth $23.4B, down 1.9% from $23.8B the previous quarter. Its ten largest holdings account for 21% of the portfolio.

William Blair Investment Management's Q3 2019 filing shows 26 new, 153 increased, 172 reduced and 41 closed positions. Its largest new stake was IAA, Inc. Common Stock: 2,969,390 shares worth $124M. The largest sale was Rogers Communications, an estimated $201M.

By sector, the portfolio is most concentrated in Technology at 20% of assets, up from 18% a quarter earlier, followed by Healthcare and Consumer Discretionary.

  • William Blair Investment Management's largest Q3 2019 buy was IAA, Inc. Common Stock: 2,969,390 shares worth $124M.
  • William Blair Investment Management added most to State Street SPDR S&P 500 ETF Trust in Q3 2019, an estimated $128M increase.
  • William Blair Investment Management's biggest Q3 2019 reduction was CoStar Group, cutting an estimated $173M.
  • William Blair Investment Management fully exited Rogers Communications in Q3 2019, selling an estimated $201M.
  • William Blair Investment Management's ten largest holdings make up 21% of its $23.4B portfolio in Q3 2019.
  • William Blair Investment Management opened 26 new positions and closed 41 in Q3 2019.
  • William Blair Investment Management's portfolio value fell 1.9% quarter-over-quarter to $23.4B.

Based on William Blair Investment Management's 13F filing for Q3 2019, filed 12 Nov 2019.